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Kenney HM, Battaglia J, Herman K, Beck LA. Atopic dermatitis and IgE-mediated food allergy: Common biologic targets for therapy and prevention. Ann Allergy Asthma Immunol 2024; 133:262-277. [PMID: 38908432 DOI: 10.1016/j.anai.2024.06.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 06/07/2024] [Accepted: 06/13/2024] [Indexed: 06/24/2024]
Abstract
OBJECTIVE To highlight common mechanistic targets for the treatment of atopic dermatitis (AD) and IgE-mediated food allergy (IgE-FA) with potential to be effective for both diseases and prevent atopic progression. DATA SOURCES Data sources were PubMed searches or National Clinical Trials (NCT)-registered clinical trials related to AD, IgE-FA, and other atopic conditions, especially focused on the pediatric population. STUDY SELECTIONS Human seminal studies and/or articles published in the past decade were emphasized with reference to preclinical models when relevant. NCT-registered clinical trials were filtered by inclusion of pediatric subjects younger than 18 years with special focus on children younger than 12 years as a critical period when AD and IgE-FA diseases may often be concurrent. RESULTS AD and IgE-FA share several pathophysiologic features, including epithelial barrier dysfunction, innate and adaptive immune abnormalities, and microbial dysbiosis, which may be critical for the clinical progression between these diseases. Revolutionary advances in targeted biologic therapies have shown the benefit of inhibiting type 2 immune responses, using dupilumab (anti-interleukin-4Rα) or omalizumab (anti-IgE), to potentially reduce symptom burden for both diseases in pediatric populations. Although the potential for biologics to promote disease remission (AD) or sustained unresponsiveness (IgE-FA) remains unclear, the refinement of biomarkers to predict infants at risk for atopic disorders provides promise for prevention through timely intervention. CONCLUSION AD and IgE-FA exhibit common features that may be leveraged to develop biologic therapeutic strategies to treat both conditions and even prevent atopic progression. Future studies should be designed with consistent age stratification in the pediatric population and standardized regimens of adjuvant oral immunotherapy or dose escalation (IgE-FA) to improve cross-study interpretation.
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Affiliation(s)
- H Mark Kenney
- Department of Medicine, University of Rochester Medical Center, Rochester, New York
| | - Jennifer Battaglia
- Department of Pediatrics, University of Rochester Medical Center, Rochester, New York
| | - Katherine Herman
- Department of Pediatrics, University of Rochester Medical Center, Rochester, New York; Division of Allergy and Immunology, University of Rochester Medical Center, Rochester, New York
| | - Lisa A Beck
- Department of Dermatology, University of Rochester Medical Center, Rochester, New York.
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2
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Satitsuksanoa P, van de Veen W, Tan G, Lopez JF, Wirz O, Jansen K, Sokolowska M, Mirer D, Globinska A, Boonpiyathad T, Schneider SR, Barletta E, Spits H, Chang I, Babayev H, Tahralı İ, Deniz G, Yücel EÖ, Kıykım A, Boyd SD, Akdis CA, Nadeau K, Akdis M. Allergen-specific B cell responses in oral immunotherapy-induced desensitization, remission, and natural outgrowth in cow's milk allergy. Allergy 2024. [PMID: 38989779 DOI: 10.1111/all.16220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 06/04/2024] [Accepted: 06/10/2024] [Indexed: 07/12/2024]
Abstract
BACKGROUND Antigen-specific memory B cells play a key role in the induction of desensitization and remission to food allergens in oral immunotherapy and in the development of natural tolerance (NT). Here, we characterized milk allergen Bos d 9-specific B cells in oral allergen-specific immunotherapy (OIT) and in children spontaneously outgrowing cow's milk allergy (CMA) due to NT. METHODS Samples from children with CMA who received oral OIT (before, during, and after), children who naturally outgrew CMA (NT), and healthy individuals were received from Stanford biobank. Bos d 9-specific B cells were isolated by flow cytometry and RNA-sequencing was performed. Protein profile of Bos d 9-specific B cells was analyzed by proximity extension assay. RESULTS Increased frequencies of circulating milk allergen Bos d 9-specific B cells were observed after OIT and NT. Milk-desensitized subjects showed the partial acquisition of phenotypic features of remission, suggesting that desensitization is an earlier stage of remission. Within these most significantly expressed genes, IL10RA and TGFB3 were highly expressed in desensitized OIT patients. In both the remission and desensitized groups, B cell activation-, Breg cells-, BCR-signaling-, and differentiation-related genes were upregulated. In NT, pathways associated with innate immunity characteristics, development of marginal zone B cells, and a more established suppressor function of B cells prevail that may play a role in long-term tolerance. The analyses of immunoglobulin heavy chain genes in specific B cells demonstrated that IgG2 in desensitization, IgG1, IgA1, IgA2, IgG4, and IgD in remission, and IgD in NT were predominating. Secreted proteins from allergen-specific B cells revealed higher levels of regulatory cytokines, IL-10, and TGF-β after OIT and NT. CONCLUSION Allergen-specific B cells are essential elements in regulating food allergy towards remission in OIT-received and naturally resolved individuals.
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Affiliation(s)
| | - Willem van de Veen
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Davos, Switzerland
| | - Ge Tan
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Davos, Switzerland
- Functional Genomics Center Zürich, ETH Zürich, Zürich, Switzerland
| | - Juan-Felipe Lopez
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Davos, Switzerland
| | - Oliver Wirz
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Davos, Switzerland
- Department of Pathology, Stanford University, Stanford, California, USA
| | - Kirstin Jansen
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Davos, Switzerland
| | - Milena Sokolowska
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Davos, Switzerland
- Christine Kühne-Center for Allergy Research and Education (CK-CARE), Davos, Switzerland
| | - David Mirer
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Davos, Switzerland
| | - Anna Globinska
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Davos, Switzerland
| | - Tadech Boonpiyathad
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Davos, Switzerland
| | - Stephan R Schneider
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Davos, Switzerland
| | - Elena Barletta
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Davos, Switzerland
- Swiss Institute of Bioinformatics, Laussane, Switzerland
| | - Hergen Spits
- Department of Experimental Immunology, Academic Medical Center of the University of Amsterdam, Amsterdam, the Netherlands
| | - Iris Chang
- Sean N. Parker Center for Allergy and Asthma Research, Stanford, California, USA
| | - Huseyn Babayev
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Davos, Switzerland
| | - İlhan Tahralı
- Department of Immunology, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
| | - Gunnur Deniz
- Department of Immunology, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
| | - Esra Özek Yücel
- Division of Pediatrics, Department of Pediatric Allergy and Immunology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
- Department of Pediatric Allergy and Immunology, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Ayca Kıykım
- Department of Pediatric Allergy and Immunology, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Scott D Boyd
- Department of Pathology, Stanford University, Stanford, California, USA
| | - Cezmi A Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Davos, Switzerland
- Christine Kühne-Center for Allergy Research and Education (CK-CARE), Davos, Switzerland
| | - Kari Nadeau
- Sean N. Parker Center for Allergy and Asthma Research, Stanford, California, USA
| | - Mübeccel Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Davos, Switzerland
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3
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Casale TB, Fiocchi A, Greenhawt M. A practical guide for implementing omalizumab therapy for food allergy. J Allergy Clin Immunol 2024; 153:1510-1517. [PMID: 38599291 DOI: 10.1016/j.jaci.2024.03.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 03/26/2024] [Accepted: 03/29/2024] [Indexed: 04/12/2024]
Abstract
The recent approval of omalizumab for the treatment of IgE-mediated food allergy is an important step forward for the millions of food allergy patients in the United States. Through the depletion of circulating IgE and the subsequent reduction of FcεR1 on key effector cells, patients increase their tolerance to food allergens. However, omalizumab does not permit patients to eat foods that they are allergic to with impunity. Rather, it protects them from most accidental exposures. In addition, omalizumab does not cure food allergy and has not demonstrated true immunomodulation. Thus, omalizumab might be a lifelong therapy for some patients. Furthermore, there are many important questions and issues surrounding the appropriate administration of omalizumab to treat food allergy, which we discuss. Managing treatment of patients with disease that falls outside the dosing range, assessing treatment response or nonresponse, addressing its appropriateness for patients older than 55, and determining whether immunotherapy plus omalizumab provides any advantage over omalizumab alone all need to be examined. Identifying appropriate patients for this therapy is critical given the cost of biologics. Indeed, not all food allergy patients are good candidates for this therapy. Also, when and how to stop omalizumab therapy in patients who may have outgrown their food allergy needs to be elucidated. Thus, although this therapy provides a good option for patients with food allergies, much information is needed to determine how best to use this therapy. Despite many unanswered questions and issues, we provide clinicians with some practical guidance on implementing this therapy in their patients.
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Affiliation(s)
- Thomas B Casale
- Department of Internal Medicine, Division of Allergy and Immunolgy, University of South Florida Morsani College of Medicine, Tampa, Fla.
| | | | - Matthew Greenhawt
- Section of Allergy and Immunology, Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, Colo
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4
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Dinardo G, Cafarotti A, Fierro V, Artesani MC, Indolfi C, Miraglia Del Giudice M, Fiocchi A. Role of biologics in severe food allergy. Curr Opin Allergy Clin Immunol 2024; 24:138-143. [PMID: 38538153 DOI: 10.1097/aci.0000000000000978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
PURPOSE OF REVIEW This review examine the dynamic landscape of food allergy treatment within the context of emerging biologics. Our purpose is to comprehensively evaluate the potential benefits, challenges, and transformative impact associated with the utilization of biologics in comparison to conventional therapeutic modalities. RECENT FINDINGS This document synthesizes recent scientific investigations to various biologics, such as omalizumab, ligelizumab, dupilumab, and tezepelumab, providing a nuanced understanding of their roles in oral immunotherapy, rapid desensitization, and overall food allergy management. Recent studies and clinical trials highlight the impact of anti-IgE treatment on food allergies, revealing critical findings such as dose-related efficacy, facilitation of rapid desensitization in peanut allergies, and the sustained positive outcomes observed in individuals with multifood allergies. SUMMARY The use of biologics presents a groundbreaking approach in the treatment of food allergies. The multifaceted action of these agents, along with their potential to overcome the challenges associated with traditional therapies, marks a significant advancement. Despite the persisting challenges of economic constraints and the need for further safety studies, biologics offer a promising avenue for improving the quality of life for individuals with food allergies. Ongoing research and collaborative efforts are imperative to fully realize the transformative potential inherent in these emerging therapeutic frontiers.
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Affiliation(s)
- Giulio Dinardo
- Department of Women, Children, and General and Specialized Surgery, University of Campania Luigi Vanvitelli, Naples
| | - Arianna Cafarotti
- Pediatric Allergology Unit, Bambino Gesù Children's Hospital IRCCS, Rome, Italy
| | - Vincenzo Fierro
- Pediatric Allergology Unit, Bambino Gesù Children's Hospital IRCCS, Rome, Italy
| | | | - Cristiana Indolfi
- Department of Women, Children, and General and Specialized Surgery, University of Campania Luigi Vanvitelli, Naples
| | - Michele Miraglia Del Giudice
- Department of Women, Children, and General and Specialized Surgery, University of Campania Luigi Vanvitelli, Naples
| | - Alessandro Fiocchi
- Pediatric Allergology Unit, Bambino Gesù Children's Hospital IRCCS, Rome, Italy
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5
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Gupta RS, Epstein E, Wood RA. The role of pediatricians in the diagnosis and management of IgE-mediated food allergy: a review. Front Pediatr 2024; 12:1373373. [PMID: 38873581 PMCID: PMC11169649 DOI: 10.3389/fped.2024.1373373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 05/13/2024] [Indexed: 06/15/2024] Open
Abstract
Importance Food allergy can often cause a significant burden on patients, families, and healthcare systems. The complexity of food allergy management requires a multidisciplinary approach involving different types of healthcare providers, including allergists, dieticians, psychologists, nurses, family practitioners and, of particular relevance for this article, pediatric primary caretakers. Pediatricians may be the first-line healthcare providers for food allergy: strategies for management and guideline adherence have been highlighted. Observations This review article summarizes the up-to-date recommendations on the role of pediatricians in the diagnosis, management, and prevention of IgE-mediated food allergy. Early introduction of allergenic foods like peanut is known to be of importance to reduce the development of peanut allergy in infants, and pediatricians are essential for educating and supporting parents in this decision. In scenarios of limited allergist availability, as is often the case among rural, Medicaid and minority populations, pediatricians can assist in the evaluation and management of food allergy, and provide action plans, education and counselling for patients and families. Conclusions and relevance Pediatric primary caretakers play a key role in the diagnosis, management, and prevention of IgE-mediated food allergy. As more diagnostic tools and therapies in food allergy become available, the need for a multidisciplinary team is paramount to optimize patient care.
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Affiliation(s)
- Ruchi S. Gupta
- Institute for Public Health and Medicine, Center for Food Allergy & Asthma, Northwestern University, Chicago, IL, United States
| | - Ellen Epstein
- Novartis Pharmaceuticals Corporation, East Hanover, NJ, United States
| | - Robert A. Wood
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, United States
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Pasioti M, Xepapadaki P, Mathioudakis AG, Lakoumentas J, Efstathiou E, Papadopoulos NG. Current options in the management of tree nut allergy: A systematic review and narrative synthesis. Pediatr Allergy Immunol 2024; 35:e14132. [PMID: 38727626 DOI: 10.1111/pai.14132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 03/19/2024] [Accepted: 04/10/2024] [Indexed: 07/12/2024]
Abstract
Tree nut allergy is a lifelong and potentially life-threatening condition. The standard of care is strictly avoiding the culprit nut and treating accidental reactions symptomatically. To evaluate potential therapeutic options for desensitizing patients with IgE-mediated tree nut allergy, we systematically searched three bibliographic databases for studies published until January 2024. We looked for active treatments of IgE-mediated allergy to tree nuts (walnut, hazelnut, pistachio, cashew, almond, pecan, macadamia nut, and brazil nut). We focused on allergen-specific immunotherapy (AIT) using oral (OIT), sublingual (SLIT), epicutaneous (EPIT), or subcutaneous (SCIT) delivery, or other disease-modifying treatments. We found 19 studies that met our criteria: 3 studies investigated sublingual immunotherapy, 5 studied oral immunotherapy to a single tree nut, and 6 used multi-food oral immunotherapy with or without omalizumab. The remaining studies investigated the effectiveness of monoclonal antibodies or IgE-immunoadsorption in multi-food allergic patients, including patients with tree nut allergy. The heterogeneity of the studies prevented pooling and meta-analysis. Oral immunotherapy, single or multi-nut, with or without omalizumab, was the most studied approach and appears effective in conferring protection from accidental exposures. Omalizumab monotherapy is the only approved alternative management for reducing allergic reactions that may occur with accidental exposure.
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Affiliation(s)
- Maria Pasioti
- Allergy Department, 2nd Paediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - Paraskevi Xepapadaki
- Allergy Department, 2nd Paediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - Alexander G Mathioudakis
- Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
- North West Lung Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, UK
| | - John Lakoumentas
- Allergy Department, 2nd Paediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - Elvira Efstathiou
- Allergy Department, 2nd Paediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - Nikolaos G Papadopoulos
- Allergy Department, 2nd Paediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
- Division of Immunology, Immunity to Infection and Respiratory Medicine, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
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Sampson HA, Bird JA, Fleischer D, Shreffler WG, Spergel JM. Who are the potential patients for omalizumab for food allergy? Ann Allergy Asthma Immunol 2024; 132:569-571. [PMID: 38479711 DOI: 10.1016/j.anai.2024.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 03/05/2024] [Indexed: 03/24/2024]
Affiliation(s)
- Hugh A Sampson
- Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, New York
| | - J Andrew Bird
- Division of Allergy and Immunology, Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas
| | - David Fleischer
- Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, Colorado
| | - Wayne G Shreffler
- Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston, Massachusetts
| | - Jonathan M Spergel
- Division of Allergy and Immunology, Children's Hospital of Philadelphia, Department of Pediatrics, Perelman School of Medicine at University of Pennsylvania, Philadelphia, Pennsylvania.
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Winslow A, Mills C, Schwartz JT, Assa'ad A. Implementing Food Oral Immunotherapy Into Clinical Practice: Quality and Safety Perspectives From a US Academic Center. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2024; 12:1159-1169. [PMID: 38423284 DOI: 10.1016/j.jaip.2024.02.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 02/03/2024] [Accepted: 02/22/2024] [Indexed: 03/02/2024]
Abstract
Oral immunotherapy (OIT) is an accessible procedure for practicing allergy/immunology providers, yet rigorous safety standards are limited in the clinical setting. By exploring the transition from research to clinical practice OIT, we review relevant safety considerations necessary for the clinical provider. We offer a perspective on clinical benefits and considerations at the individual, collaboration, and policy levels from the vantage of a large academic OIT program, and we propose several practical start-up checklists and clerical considerations for practicing providers. Awareness of the local population and front-end planning is necessary to improve the accessibility of this procedure in clinical practice among racial and socioeconomic minority populations. Sharing and merging OIT protocols, procedural methods, and electronic medical record order sets may increase harmonization among OIT-providing institutions and further our abilities to pool safety and outcomes data, ultimately enhancing the safety and efficacy of clinical OIT.
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Affiliation(s)
- Andrew Winslow
- Division of Allergy and Immunology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio.
| | - Christa Mills
- Division of Allergy and Immunology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Justin T Schwartz
- Division of Allergy and Immunology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Amal Assa'ad
- Division of Allergy and Immunology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
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Zhang YY, Zhang M, Zhang JQ, Li QQ, Lu MP, Cheng L. Combination of omalizumab with allergen immunotherapy versus immunotherapy alone for allergic diseases: A meta-analysis of randomized controlled trials. Int Forum Allergy Rhinol 2024; 14:794-806. [PMID: 37715592 DOI: 10.1002/alr.23268] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 08/22/2023] [Accepted: 08/29/2023] [Indexed: 09/17/2023]
Abstract
BACKGROUND Allergen immunotherapy (AIT)-associated adverse events (AEs) limit its usage in the management of allergic diseases. The monoclonal anti-IgE antibody (omalizumab) and AIT have complementary actions. However, no consensus has been reached on whether their combination could exert superior efficacy and safety. OBJECTIVE To evaluate whether the combination of AIT with omalizumab is superior to AIT alone in treating allergic diseases. METHODS The MEDLINE/PubMed, Embase, Scopus and Cochrane Library databases were searched to identify randomized control trials (RCTs) reporting the outcomes of omalizumab combined with AIT (omalizumab + AIT) versus AIT alone. A random-effect model was established to estimate outcomes with a 95% confidence interval (CI). RESULTS A total of 11 eligible RCTs (involving 901 patients) were screened out for the meta-analysis. According to a pooled analysis, omalizumab + AIT significantly increased the number of patients achieving the target maintenance dose (TMD) and sustained unresponsiveness (SU) to allergens (odds ratio [OR] = 2.43; 95% CI: 1.33-4.44; p = 0.004; I2 = 35%, and OR = 6.77; 95% CI: 2.10-21.80; p = 0.001; I2 = 36%, respectively). Similarly, individuals receiving the combination therapy reported significantly fewer episodes of severe systemic AEs than AIT alone (OR = 0.32; 95% CI: 0.18-0.59; p = 0.0003; I2 = 0%). Meanwhile, the improvements in symptom severity score (mean difference [MD] = -0.26), rescue medication daily means score (MD = -0.14), and number of patients consuming epinephrine in AIT (OR = 0.20) were all more evident than those in AIT alone. CONCLUSION Omalizumab + AIT can significantly enhance the efficacy and safety of AIT by increasing TMD and SU to allergens, while decreasing severe systemic AEs.
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Affiliation(s)
- Ying-Ying Zhang
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Min Zhang
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Jia-Qi Zhang
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Qiu-Qi Li
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Mei-Ping Lu
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Lei Cheng
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
- International Centre for Allergy Research, Nanjing Medical University, Nanjing, China
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10
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Wood RA, Togias A, Sicherer SH, Shreffler WG, Kim EH, Jones SM, Leung DYM, Vickery BP, Bird JA, Spergel JM, Iqbal A, Olsson J, Ligueros-Saylan M, Uddin A, Calatroni A, Huckabee CM, Rogers NH, Yovetich N, Dantzer J, Mudd K, Wang J, Groetch M, Pyle D, Keet CA, Kulis M, Sindher SB, Long A, Scurlock AM, Lanser BJ, Lee T, Parrish C, Brown-Whitehorn T, Spergel AKR, Veri M, Hamrah SD, Brittain E, Poyser J, Wheatley LM, Chinthrajah RS. Omalizumab for the Treatment of Multiple Food Allergies. N Engl J Med 2024; 390:889-899. [PMID: 38407394 PMCID: PMC11193494 DOI: 10.1056/nejmoa2312382] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
BACKGROUND Food allergies are common and are associated with substantial morbidity; the only approved treatment is oral immunotherapy for peanut allergy. METHODS In this trial, we assessed whether omalizumab, a monoclonal anti-IgE antibody, would be effective and safe as monotherapy in patients with multiple food allergies. Persons 1 to 55 years of age who were allergic to peanuts and at least two other trial-specified foods (cashew, milk, egg, walnut, wheat, and hazelnut) were screened. Inclusion required a reaction to a food challenge of 100 mg or less of peanut protein and 300 mg or less of the two other foods. Participants were randomly assigned, in a 2:1 ratio, to receive omalizumab or placebo administered subcutaneously (with the dose based on weight and IgE levels) every 2 to 4 weeks for 16 to 20 weeks, after which the challenges were repeated. The primary end point was ingestion of peanut protein in a single dose of 600 mg or more without dose-limiting symptoms. The three key secondary end points were the consumption of cashew, of milk, and of egg in single doses of at least 1000 mg each without dose-limiting symptoms. The first 60 participants (59 of whom were children or adolescents) who completed this first stage were enrolled in a 24-week open-label extension. RESULTS Of the 462 persons who were screened, 180 underwent randomization. The analysis population consisted of the 177 children and adolescents (1 to 17 years of age). A total of 79 of the 118 participants (67%) receiving omalizumab met the primary end-point criteria, as compared with 4 of the 59 participants (7%) receiving placebo (P<0.001). Results for the key secondary end points were consistent with those of the primary end point (cashew, 41% vs. 3%; milk, 66% vs. 10%; egg, 67% vs. 0%; P<0.001 for all comparisons). Safety end points did not differ between the groups, aside from more injection-site reactions in the omalizumab group. CONCLUSIONS In persons as young as 1 year of age with multiple food allergies, omalizumab treatment for 16 weeks was superior to placebo in increasing the reaction threshold for peanut and other common food allergens. (Funded by the National Institute of Allergy and Infectious Diseases and others; ClinicalTrials.gov number, NCT03881696.).
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Affiliation(s)
- Robert A Wood
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Alkis Togias
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Scott H Sicherer
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Wayne G Shreffler
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Edwin H Kim
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Stacie M Jones
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Donald Y M Leung
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Brian P Vickery
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - J Andrew Bird
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Jonathan M Spergel
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Ahmar Iqbal
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Julie Olsson
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Monica Ligueros-Saylan
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Alkaz Uddin
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Agustin Calatroni
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Charmaine Marquis Huckabee
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Nicole H Rogers
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Nancy Yovetich
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Jennifer Dantzer
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Kim Mudd
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Julie Wang
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Marion Groetch
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - David Pyle
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Corinne A Keet
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Michael Kulis
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Sayantani B Sindher
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Andrew Long
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Amy M Scurlock
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Bruce J Lanser
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Tricia Lee
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Christopher Parrish
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Terri Brown-Whitehorn
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Amanda K Rudman Spergel
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Maria Veri
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Sanaz Daneshfar Hamrah
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Erica Brittain
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Julian Poyser
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - Lisa M Wheatley
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
| | - R Sharon Chinthrajah
- From the Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore (R.A.W., J.D., K.M.), and the National Institutes of Health (National Institutes of Allergy and Infectious Diseases), Bethesda (A.T., A.K.R.S., M.V., S.D.H., E.B., J.P., L.M.W.) - both in Maryland; the Division of Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York (S.H.S., J.W., M.G.); the Division of Pediatric Allergy and Immunology and Food Allergy Center, Massachusetts General Hospital, Boston (W.G.S., D.P.); the University of North Carolina School of Medicine (E.H.K., C.A.K., M.K.) and Rho (A.C., C.M.H., N.H.R., N.Y.) - both in Chapel Hill; the University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock (S.M.J., A.M.S.); National Jewish Health, Denver (D.Y.M.L., B.J.L.); Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta (B.P.V., T.L.); the Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas (J.A.B., C.P.); the Division of Allergy and Immunology, Department of Pediatrics at Perelman School of Medicine at University of Pennsylvania, Philadelphia (J.M.S., T.B.-W.); Genentech-Roche, South San Francisco (A.I., J.O.), and Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto (S.B.S., A.L., R.S.C.) - both in California; and Novartis Pharmaceuticals, East Hanover, NJ (M.L.-S., A.U.)
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11
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Nguyen A, du Toit G, Lack G, Marrs T. Optimising the management of peanut allergy by targeting immune plasticity. Clin Exp Allergy 2024; 54:169-184. [PMID: 38423799 DOI: 10.1111/cea.14454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 11/03/2023] [Accepted: 11/23/2023] [Indexed: 03/02/2024]
Abstract
Randomised controlled trials investigating the efficacy of oral tolerance induction to peanut have enabled detailed comparison of their clinical and immunological success. They have demonstrated that the regular consumption of peanut for at least 2 years by babies who are not allergic enables protection from developing peanut allergy. The LEAP study intervention tested the impact of regular peanut consumption for 4 years and demonstrated a sustained protection against the development of peanut allergy even after 12 months of peanut avoidance from 5 to 6 years of age. The PreventADALL trial introduced multiple allergens into babies' diets from early infancy and reduced the prevalence of food allergy at 3 years, especially by protecting against peanut allergy. Immunological studies from the LEAP cohort demonstrated that regular peanut consumption was associated with a prompt induction of peanut-specific IgG4 and reduced manufacture of peanut and Ara h 2-specific IgE. Even after stopping peanut consumption for 5 years, there continued to be a significant fall in peanut-specific Ara h 2 IgE in the consumption group from 5 to 6 years of age (p < .01). Children who developed peanut allergy by 5 years started to develop increasing sensitisation to linear sequential peanut epitopes from 2.5 years of age, suggesting that putative disease-modifying interventions should commence before 3 years. Data comparing clinical outcomes between children undergoing peanut immunotherapy from infancy suggest that younger children can consume higher portions of peanut without reaction on challenge whilst taking immunotherapy, have fewer side effects and are more likely to enjoy remission of PA. Peanut oral immunotherapy modulates T-cell populations in order to bring about hypo-responsiveness of allergy effector cells. Studies are now needed to characterise and compare different states of immunological tolerance. This will accelerate the design of interventions which can promote primary, secondary and tertiary levels of PA prevention across a range of age groups.
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Affiliation(s)
- Alan Nguyen
- Queensland Children's Hospital, South Brisbane, Queensland, Australia
| | - George du Toit
- Paediatric Allergy, Department of Women and Children's Health, King's College London, Strand, UK
- Children's Allergies, Evelina London, Guy's and St Thomas' NHS Foundation Trust, St Thomas' Hospital, London, UK
| | - Gideon Lack
- Paediatric Allergy, Department of Women and Children's Health, King's College London, Strand, UK
| | - Tom Marrs
- Paediatric Allergy, Department of Women and Children's Health, King's College London, Strand, UK
- Children's Allergies, Evelina London, Guy's and St Thomas' NHS Foundation Trust, St Thomas' Hospital, London, UK
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12
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Dantzer JA, Kim EH. New Approaches to Food Allergy Immunotherapy. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2024; 12:546-552. [PMID: 37852441 DOI: 10.1016/j.jaip.2023.10.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 10/04/2023] [Indexed: 10/20/2023]
Abstract
Food allergy is an increasing public health problem in children and adults. In addition to the risk of potentially severe reactions, food allergy can have a significant burden on quality of life, nutrition, cost of living, and social activities. Traditionally, treatment has primarily included strict food allergen avoidance and use of emergency medications to treat an allergic reaction. However, in recent years, there have been significant strides in the advancement of food allergy treatment, including the approval of the first and only approved therapy (peanut oral immunotherapy) for food allergy in 2020. Clinical trials have primarily focused on food allergen immunotherapy (oral, epicutaneous, sublingual). Building off of a foundation of promising data supporting the efficacy of food oral immunotherapy and our greater understanding of the underlying mechanism of immunotherapy, newer approaches, including alternative routes of delivery, adjuncts to therapy, modified allergens, and utilization in younger patients, aim to provide safer and more effective treatment approaches to the millions of patients burdened by food allergy.
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Affiliation(s)
- Jennifer A Dantzer
- Johns Hopkins University School of Medicine, Division of Pediatric Allergy, Immunology, and Rheumatology, Baltimore, Md.
| | - Edwin H Kim
- University of North Carolina School of Medicine, Division of Pediatric Allergy and Immunology, Chapel Hill, NC
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13
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Sindher SB, Fiocchi A, Zuberbier T, Arasi S, Wood RA, Chinthrajah RS. The Role of Biologics in the Treatment of Food Allergy. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2024; 12:562-568. [PMID: 38013157 PMCID: PMC11104487 DOI: 10.1016/j.jaip.2023.11.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 11/09/2023] [Indexed: 11/29/2023]
Abstract
The landscape of food allergy (FA) treatment is poised for a paradigm shift with the emergence of biologic therapies. The Food and Drug Administration approval of a standardized peanut powder for oral immunotherapy in 2020 marked a milestone, signaling a departure from allergen avoidance toward proactive treatment strategies. Although oral immunotherapy has been proven effective in desensitizing patients to specific allergens, there are several limitations such as lacking standardization, a long-time commitment to achieve maintenance, and adverse events. Biologics, including omalizumab, dupilumab, and antialarmins, have shown promise in treating various allergic diseases, including FA. These biologics target the underlying immunologic pathways driving allergic reactions, offering an antigen-agnostic approach. Omalizumab (anti-IgE) has been the most studied biologic in this space and can be used both as an adjunct therapy with oral immunotherapy and as monotherapy. Dupilumab targeting IL-4 and IL-13 also shows promise as an adjunct therapy. The emergence of antialarmins further broadens the spectrum of FA treatment possibilities. Biologics represent a transformative approach to FA treatment, directly addressing the underlying mechanisms. Future research should focus on patient selection criteria, personalized biomarker panels, optimal timing of intervention, and treatment durations.
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Affiliation(s)
- Sayantani B Sindher
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, Calif
| | | | - Torsten Zuberbier
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Allergology and Immunology, Berlin, Germany; Institute of Allergology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Stefania Arasi
- Allergy Unit - Bambino Gesù Children's Hospital, Rome, Italy
| | - Robert A Wood
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Md
| | - R Sharon Chinthrajah
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, Calif.
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14
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Lejeune S, Kaushik A, Parsons ES, Chinthrajah S, Snyder M, Desai M, Manohar M, Prunicki M, Contrepois K, Gosset P, Deschildre A, Nadeau K. Untargeted metabolomic profiling in children identifies novel pathways in asthma and atopy. J Allergy Clin Immunol 2024; 153:418-434. [PMID: 38344970 DOI: 10.1016/j.jaci.2023.09.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 09/19/2023] [Accepted: 09/25/2023] [Indexed: 02/15/2024]
Abstract
BACKGROUND Asthma and other atopic disorders can present with varying clinical phenotypes marked by differential metabolomic manifestations and enriched biological pathways. OBJECTIVE We sought to identify these unique metabolomic profiles in atopy and asthma. METHODS We analyzed baseline nonfasted plasma samples from a large multisite pediatric population of 470 children aged <13 years from 3 different sites in the United States and France. Atopy positivity (At+) was defined as skin prick test result of ≥3 mm and/or specific IgE ≥ 0.35 IU/mL and/or total IgE ≥ 173 IU/mL. Asthma positivity (As+) was based on physician diagnosis. The cohort was divided into 4 groups of varying combinations of asthma and atopy, and 6 pairwise analyses were conducted to best assess the differential metabolomic profiles between groups. RESULTS Two hundred ten children were classified as At-As-, 42 as At+As-, 74 as At-As+, and 144 as At+As+. Untargeted global metabolomic profiles were generated through ultra-high-performance liquid chromatography-tandem mass spectroscopy. We applied 2 independent machine learning classifiers and short-listed 362 metabolites as discriminant features. Our analysis showed the most diverse metabolomic profile in the At+As+/At-As- comparison, followed by the At-As+/At-As- comparison, indicating that asthma is the most discriminant condition associated with metabolomic changes. At+As+ metabolomic profiles were characterized by higher levels of bile acids, sphingolipids, and phospholipids, and lower levels of polyamine, tryptophan, and gamma-glutamyl amino acids. CONCLUSION The At+As+ phenotype displays a distinct metabolomic profile suggesting underlying mechanisms such as modulation of host-pathogen and gut microbiota interactions, epigenetic changes in T-cell differentiation, and lower antioxidant properties of the airway epithelium.
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Affiliation(s)
- Stéphanie Lejeune
- Department of Medicine, Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Stanford, Calif; University of Lille, Pediatric Pulmonology and Allergy Department, Hôpital Jeanne de Flandre, CHU Lille, Lille, France; University of Lille, INSERM Unit 1019, CNRS UMR 9017, CHU Lille, Institut Pasteur de Lille, Center for Infection and Immunity of Lille, Lille, France.
| | - Abhinav Kaushik
- Department of Medicine, Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Stanford, Calif; Department of Environmental Health, T. H. Chan School of Public Health, Harvard University, Boston, Mass
| | - Ella S Parsons
- Department of Medicine, Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Stanford, Calif
| | - Sharon Chinthrajah
- Department of Medicine, Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Stanford, Calif
| | - Michael Snyder
- Department of Genetics, Stanford University School of Medicine, Stanford, Calif
| | - Manisha Desai
- Quantitative Science Unit, Department of Medicine, Stanford University School of Medicine, Stanford, Calif
| | - Monali Manohar
- Department of Medicine, Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Stanford, Calif
| | - Mary Prunicki
- Department of Medicine, Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Stanford, Calif; Department of Environmental Health, T. H. Chan School of Public Health, Harvard University, Boston, Mass
| | - Kévin Contrepois
- Department of Genetics, Stanford University School of Medicine, Stanford, Calif
| | - Philippe Gosset
- University of Lille, INSERM Unit 1019, CNRS UMR 9017, CHU Lille, Institut Pasteur de Lille, Center for Infection and Immunity of Lille, Lille, France
| | - Antoine Deschildre
- University of Lille, Pediatric Pulmonology and Allergy Department, Hôpital Jeanne de Flandre, CHU Lille, Lille, France; University of Lille, INSERM Unit 1019, CNRS UMR 9017, CHU Lille, Institut Pasteur de Lille, Center for Infection and Immunity of Lille, Lille, France
| | - Kari Nadeau
- Department of Environmental Health, T. H. Chan School of Public Health, Harvard University, Boston, Mass
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15
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Jeong K, Lee S. Natural course of IgE-mediated food allergy in children. Clin Exp Pediatr 2023; 66:504-511. [PMID: 37321568 PMCID: PMC10694555 DOI: 10.3345/cep.2022.01004] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 02/03/2023] [Accepted: 03/28/2023] [Indexed: 06/17/2023] Open
Abstract
The prevalence of food allergy and food-induced anaphylaxis in children is increasing worldwide. Cow's milk, hen's eggs, and wheat allergies in young children have a more favorable prognosis with a relatively early outgrow, while allergies to peanuts, tree nuts, and seafood are more likely to be persistent. Although our understanding of the mechanism underlying the resolution of food allergy is incomplete, the roles of dendritic cells, regulatory T cells, and regulatory B cells are important. Many past studies on the natural course of food allergy were retrospective analyses of specific study groups, but large-scale population-based prospective studies are now being published. This review summarizes recent studies of the natural course of cow's milk, hen's eggs, wheat, peanuts, tree nuts, soy, sesame, and seafood allergies. The potential factors affecting the natural course of food allergy include symptom severity on ingestion, age at diagnosis, allergic comorbidities, skin prick test reaction size or serum food-specific immunoglobulin (Ig) E levels, changes in sensitization degree, IgE epitope specificity, ratio of food-specific IgE to IgG4, food-specific IgA levels, component-resolved diagnostic profile, diet, gut microbiome, and interventions such as immunotherapy. Since food allergy places a significant burden on patients and their caregivers in daily life, clinicians should be able to provide relevant knowledge on the natural course of food allergy, appropriately evaluate its resolution, and offer therapeutic options whenever possible.
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Affiliation(s)
- Kyunguk Jeong
- Department of Pediatrics, Ajou University School of Medicine, Suwon, Korea
| | - Sooyoung Lee
- Department of Pediatrics, Ajou University School of Medicine, Suwon, Korea
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16
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Brasal-Prieto M, Fernández-Prades L, Dakhaoui H, Sobrino F, López-Enríquez S, Palomares F. Update on In Vitro Diagnostic Tools and Treatments for Food Allergies. Nutrients 2023; 15:3744. [PMID: 37686776 PMCID: PMC10489659 DOI: 10.3390/nu15173744] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/15/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023] Open
Abstract
Food allergy (FA) is an adverse immunological reaction to a specific food that can trigger a wide range of symptoms from mild to life-threatening. This adverse reaction is caused by different immunological mechanisms, such as IgE-mediated, non-IgE-mediated and mixed IgE-mediated reactions. Its epidemiology has had a significant increase in the last decade, more so in developed countries. It is estimated that approximately 2 to 10% of the world's population has FA and this number appears to be increasing and also affecting more children. The diagnosis can be complex and requires the combination of different tests to establish an accurate diagnosis. However, the treatment of FA is based on avoiding the intake of the specific allergenic food, thus being very difficult at times and also controlling the symptoms in case of accidental exposure. Currently, there are other immunomodulatory treatments such as specific allergen immunotherapy or more innovative treatments that can induce a tolerance response. It is important to mention that research in this field is ongoing and clinical trials are underway to assess the safety and efficacy of these different immunotherapy approaches, new treatment pathways are being used to target and promote the tolerance response. In this review, we describe the new in vitro diagnostic tools and therapeutic treatments to show the latest advances in FA management. We conclude that although significant advances have been made to improve therapies and diagnostic tools for FA, there is an urgent need to standardize both so that, in their totality, they help to improve the management of FA.
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17
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Wang J, Wood RA, Raymond S, Suárez-Fariñas M, Yang N, Sicherer SH, Sampson HA, Li XM. Double-Blind, Placebo-Controlled Study of E-B-FAHF-2 in Combination With Omalizumab-Facilitated Multiallergen Oral Immunotherapy. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2023; 11:2208-2216.e1. [PMID: 37087097 PMCID: PMC10330343 DOI: 10.1016/j.jaip.2023.03.051] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/21/2023] [Accepted: 03/22/2023] [Indexed: 04/24/2023]
Abstract
BACKGROUND Oral immunotherapy (OIT) is limited by adverse events, and most patients require continued treatment to maintain their increased threshold. Adjunctive treatments have been explored to increase the safety and efficacy of OIT. OBJECTIVE This study aimed to determine the safety and efficacy of enhanced, butanol purified Food Allergy Herbal Formula-2 (E-B-FAHF-2) for inducing remission in subjects undergoing omalizumab-facilitated multiallergen OIT (multi-OIT). METHODS In this double-blind, placebo-controlled clinical trial, subjects were randomized 1:1 to receive either E-B-FAHF-2 or placebo, starting 2 months before OIT and continuing throughout OIT. All subjects received a 4-month course of omalizumab, starting 2 months before OIT through the 2-month OIT build-up phase. After 24 months of multi-OIT (maintenance dose of 1000 mg of each allergen), desensitization and remission were assessed. The primary objective was to determine if subjects in the E-B-FAHF-2 group (EOIT) were more likely than the placebo group (OIT) to develop remission to all 3 allergens treated with multi-OIT, as defined by the absence of dose-limiting symptoms to a cumulative dose of 4444 mg of protein after discontinuing treatment for 3 months. RESULTS Thirty-three subjects were randomized. A total of 63.6% were desensitized to 4444 mg of protein for each allergen at 26 months, and 24.2% met the primary outcome of remission at 29 months, with no difference between the treatment groups. There was good adherence (>85%) with study medications, with no difference between the treatment groups. There was no difference in reported overall adverse events between the treatment groups. CONCLUSION Omalizumab-facilitated multifood OIT was safe and effective, and remission was achieved in about a quarter of subjects. However, outcomes were not improved by the addition of E-B-FAHF-2.
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Affiliation(s)
- Julie Wang
- Jaffe Food Allergy Institute, Icahn School of Medicine at Mount Sinai, New York, NY.
| | - Robert A Wood
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Md
| | - Samantha Raymond
- Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Mayte Suárez-Fariñas
- Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY; Department of Genetics and Genomics Science, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Nan Yang
- General Nutraceutical Technology, Elmsford, NY; Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY
| | - Scott H Sicherer
- Jaffe Food Allergy Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Hugh A Sampson
- Jaffe Food Allergy Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Xiu-Min Li
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY; Department of Otolaryngology, New York Medical College, Valhalla, NY
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18
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Bellanti JA. Mechanisms of desensitization with oral immunotherapy and epicutaneous immunotherapy. JOURNAL OF FOOD ALLERGY 2023; 5:10-18. [PMID: 39022333 PMCID: PMC11250651 DOI: 10.2500/jfa.2023.5.230002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Background Oral immunotherapy (OIT) and epicutaneous immunotherapy (EPIT) are emerging therapies for food allergy. With several recently published exploratory trials and randomized controlled clinical trials that support these procedures, there is a clear progress and interest toward making these treatment options available for allergist/immunologists and patients with food allergies entrusted to their care. However, there still remain many questions and concerns to be addressed before these procedures can be fully understood. Objective The purpose of the present report is to trace some of the important historical milestones in the development of OIT and EPIT that have contributed to their evolving clinical application to the treatment of food allergy, to describe some of the current understandings of the immunologic mechanisms by which these procedures elicit desensitization, and to provide some areas for future inquiry and research. Methods An extensive research was conducted in the medical literature data bases by applying terms such as food allergy, desensitization, tolerance, unresponsiveness, Treg cells, allergen immunotherapy (AIT), oral immunotherapy (OIT), and epicutaneous immunotherapy (EPIT). Results OIT and EPIT take their origins from AIT (also called desensitization), a procedure first reported for the treatment of hay fever over a 100 years ago in which slowly increasing doses of a specifically relevant allergen were administered until a maintenance dosage was achieved when the patient was free of symptoms. OIT and EPIT differ from AIT in certain aspects including the route of administration of the allergen as well as their relative shorter period of sustained unresponsiveness. Conclusion The origins and important historical landmarks that have been made in the field of food allergy immunotherapy are presented in the context of the immunologic mechanisms that contribute to the pathogenesis of these disorders. Although considerable progress has been made in recent years toward making these treatment options available for allergist/immunologists and patients with food allergies, there still remain many questions and concerns to be addressed before these procedures can be fully understood, which can be illuminated by future research.
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Affiliation(s)
- Joseph A. Bellanti
- From the Departments of Pediatrics and
- Microbiology and Immunology, Georgetown University Medical Center, Washington, D.C. and
- The International Center for Interdisciplinary Studies of Immunology, Georgetown University Medical Center, Washington, D.C
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Sindher SB, Chin AR, Aghaeepour N, Prince L, Maecker H, Shaw GM, Stevenson DK, Nadeau KC, Snyder M, Khatri P, Boyd SD, Winn VD, Angst MS, Chinthrajah RS. Advances and potential of omics studies for understanding the development of food allergy. FRONTIERS IN ALLERGY 2023; 4:1149008. [PMID: 37034151 PMCID: PMC10080041 DOI: 10.3389/falgy.2023.1149008] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 03/06/2023] [Indexed: 04/11/2023] Open
Abstract
The prevalence of food allergy continues to rise globally, carrying with it substantial safety, economic, and emotional burdens. Although preventative strategies do exist, the heterogeneity of allergy trajectories and clinical phenotypes has made it difficult to identify patients who would benefit from these strategies. Therefore, further studies investigating the molecular mechanisms that differentiate these trajectories are needed. Large-scale omics studies have identified key insights into the molecular mechanisms for many different diseases, however the application of these technologies to uncover the drivers of food allergy development is in its infancy. Here we review the use of omics approaches in food allergy and highlight key gaps in knowledge for applying these technologies for the characterization of food allergy development.
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Affiliation(s)
- Sayantani B Sindher
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Palo Alto, CA, United States
| | - Andrew R Chin
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Palo Alto, CA, United States
| | - Nima Aghaeepour
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Palo Alto, CA, United States
- Department of Pediatrics, Stanford University School of Medicine, Palo Alto, CA, United States
- Department of Biomedical Data Science, Stanford University School of Medicine, Palo Alto, CA, United States
| | - Lawrence Prince
- Department of Pediatrics, Stanford University School of Medicine, Palo Alto, CA, United States
| | - Holden Maecker
- Department of Medicine, Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine, Palo Alto, CA, United States
| | - Gary M Shaw
- Department of Pediatrics, Stanford University School of Medicine, Palo Alto, CA, United States
| | - David K Stevenson
- Department of Pediatrics, Stanford University School of Medicine, Palo Alto, CA, United States
| | - Kari C Nadeau
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Palo Alto, CA, United States
| | - Michael Snyder
- Department of Genetics, Stanford University, Palo Alto, CA, United States
| | - Purvesh Khatri
- Department of Medicine, Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine, Palo Alto, CA, United States
| | - Scott D Boyd
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Palo Alto, CA, United States
- Department of Pathology, Stanford University, Palo Alto, CA, United States
| | - Virginia D Winn
- Department of Obstetrics and Gynecology, Stanford University School of Medicine, Palo Alto, CA, United States
| | - Martin S Angst
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Palo Alto, CA, United States
| | - R Sharon Chinthrajah
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Palo Alto, CA, United States
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20
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Sindher SB, Barshow S, Tirumalasetty J, Arasi S, Atkins D, Bauer M, Bégin P, Collins MH, Deschildre A, Doyle AD, Fiocchi A, Furuta GT, Garcia-Lloret M, Mennini M, Rothenberg ME, Spergel JM, Wang J, Wood RA, Wright BL, Zuberbier T, Chin AR, Long A, Nadeau KC, Chinthrajah RS. The role of biologics in pediatric food allergy and eosinophilic gastrointestinal disorders. J Allergy Clin Immunol 2023; 151:595-606. [PMID: 36872039 PMCID: PMC9993424 DOI: 10.1016/j.jaci.2023.01.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/10/2023] [Accepted: 01/12/2023] [Indexed: 03/06/2023]
Abstract
Continuing insight into the molecular mechanisms of atopic disorders has enabled the development of biologics to precisely target these diseases. Food allergy (FA) and eosinophilic gastrointestinal disorders (EGIDs) are driven by similar inflammatory molecular mechanisms and exist along the same atopic disease spectrum. Therefore, many of the same biologics are being investigated to target key drivers of mechanisms shared across the disease states. The enormous potential of biologics for the treatment of FA and EGIDs is highlighted by the significant increases in the number of ongoing clinical trials (more than 30) evaluating their use in these disease states, as well as by the recent US Food and Drug Administration approval of dupilumab for the treatment of eosinophilic esophagitis. Here we discuss past and current research into the use of biologics in FA and EGIDs and their potential role in improving treatment options in the future, with the need to have biologics widely clinically available.
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Affiliation(s)
- Sayantani B Sindher
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, Calif
| | - Suzanne Barshow
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, Calif
| | - Jyothi Tirumalasetty
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, Calif
| | - Stefania Arasi
- Translational Research in Paediatric Specialities Area, Division of Allergy, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Dan Atkins
- Department of Pediatrics, Section of Allergy and Immunology, Digestive Health Institute, Gastrointestinal Eosinophilic Diseases Program, Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, Colo
| | - Maureen Bauer
- Department of Pediatrics, Section of Allergy and Immunology, Digestive Health Institute, Gastrointestinal Eosinophilic Diseases Program, Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, Colo
| | - Philippe Bégin
- Department of Pediatrics, Service of Allergy and Clinical Immunology, Centre Hospitalier Universitaire Sainte-Justine, Montréal; Department of Medicine, Service of Allergy and Clinical Immunology, Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada
| | - Margaret H Collins
- Division of Pathology and Laboratory Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center and University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Antoine Deschildre
- CHU Lille, Université Lille, Pediatric Pulmonology and Allergy Department, Hôpital Jeanne de Flandre, Lille, France
| | - Alfred D Doyle
- Division of Allergy, Asthma and Clinical Immunology, Department of Medicine, Mayo Clinic Arizona, Scottsdale, Ariz
| | - Alessandro Fiocchi
- Translational Research in Paediatric Specialities Area, Division of Allergy, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Glenn T Furuta
- Department of Pediatrics, Section of Allergy and Immunology, Digestive Health Institute, Gastrointestinal Eosinophilic Diseases Program, Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, Colo
| | - Maria Garcia-Lloret
- Department of Pediatrics, Division of Immunology, Allergy, and Rheumatology, David Geffen School of Medicine at UCLA, Los Angeles, Calif
| | - Maurizio Mennini
- Translational Research in Paediatric Specialities Area, Division of Allergy, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Marc E Rothenberg
- Division of Allergy and Immunology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center and University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Jonathan M Spergel
- Division of Allergy and Immunology, The Children's Hospital of Philadelphia and Department of Pediatrics, Perelman School of Medicine at University of Pennsylvania, Philadelphia, Pa
| | - Julie Wang
- Division of Pediatric Allergy and Immunology, Department of Pediatrics, Icahn School of Medicine at Mount Sinai and the Jaffe Food Allergy Institute, New York, NY
| | - Robert A Wood
- Division of Pediatric Allergy, Immunology, and Rheumatology, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Md
| | - Benjamin L Wright
- Division of Allergy, Asthma and Clinical Immunology, Department of Medicine, Mayo Clinic Arizona, Scottsdale, Ariz
| | - Torsten Zuberbier
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany; Berlin Institute of Health, Berlin, Germany
| | - Andrew R Chin
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, Calif
| | - Andrew Long
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, Calif
| | - Kari C Nadeau
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, Calif
| | - R Sharon Chinthrajah
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, Calif.
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21
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Özdemir PG, Sato S, Yanagida N, Ebisawa M. Oral Immunotherapy in Food Allergy: Where Are We Now? ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2023; 15:125-144. [PMID: 37021501 PMCID: PMC10079524 DOI: 10.4168/aair.2023.15.2.125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 03/01/2023] [Accepted: 03/14/2023] [Indexed: 04/07/2023]
Abstract
Food allergy (FA) has become more prevalent and problematic in the last 2 decades, and it poses important individual, social, and economic burdens. Besides treating reactions induced by accidental exposure and periodic evaluation for acquiring natural tolerance, the primary management approach is still allergen avoidance as a global standard. However, an active therapeutic approach that can raise the reaction threshold or accelerate tolerance is needed. This review aimed to provide an overview and the latest evidence of oral immunotherapy (OIT), which has recently been used in the active treatment of FA. FA immunotherapy, particularly OIT, is gaining considerable interest, and substantial effort has been made to integrate this active treatment into clinical practice. Consequently, growing evidence has been obtained regarding the efficacy and safety of OIT, particularly for allergens such as peanuts, eggs, and milk. However, several issues need to be addressed regarding the availability, safety, and long-term effects of this intervention. In this review, we summarize currently available information regarding tolerance-inducing immune mechanisms of OIT, data on efficacy and safety, gaps in current evidence, and ongoing research to develop new therapeutic molecules in order to enhance safety.
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Affiliation(s)
- Pınar Gökmirza Özdemir
- Department of Pediatric Allergy and Immunology, Trakya University School of Medicine, Edirne, Turkey
- Department of Allergy, Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, Kanagawa, Japan
| | - Sakura Sato
- Department of Allergy, Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, Kanagawa, Japan
| | - Noriyuki Yanagida
- Department of Allergy, Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, Kanagawa, Japan
| | - Motohiro Ebisawa
- Department of Allergy, Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, Kanagawa, Japan.
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22
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Erdle SC, Cook VE, Cameron SB, Yeung J, Kapur S, McHenry M, Chan ES, Mak R, Rex GA, Wong T, Soller L. Real-World Safety Analysis of Preschool Tree Nut Oral Immunotherapy. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2023; 11:1177-1183. [PMID: 36736958 DOI: 10.1016/j.jaip.2023.01.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 01/06/2023] [Accepted: 01/11/2023] [Indexed: 02/04/2023]
Abstract
BACKGROUND Our group previously described preschool peanut oral immunotherapy (OIT) in a real-world, multicenter setting, suggesting that this therapy is safe for most preschoolers. OBJECTIVE To examine the safety and tolerability of tree nut (TN) OIT in preschoolers in the real world. METHODS As part of a Canada-wide quality improvement project, TN-OIT (cashew/pistachio, walnut/pecan, hazelnut, almond, and macadamia nut) was performed in preschoolers who had (1) a skin prick test wheal diameter greater than or equal to 3 mm or a specific IgE level greater than or equal to 0.35 kU/L and a convincing objective IgE-mediated reaction or (2) no ingestion history and a specific IgE level greater than or equal to 5 kU/L. Dose escalations were performed every 2 to 4 weeks till a maintenance dose of 300 mg of TN protein was reached. Symptoms were recorded and classified using the modified World Allergy Organization Subcutaneous Immunotherapy Reaction Grading System (1, mildest; 5, fatal). RESULTS Of the 92 patients who started TN-OIT from 2018 to 2021, 79 (85.9%) underwent single-food TN-OIT and 13 (14.1%) underwent multifood TN-OIT to 2 (10.8%) or 3 (3.3%) TNs. Eighty-nine (96.7%) patients reached maintenance, and 4 (4.3%) dropped out. Sixty-five (70.7%) patients experienced reactions during buildup: 35 (38.0%) grade 1 reactions, 30 (32.6%) grade 2 reactions, no grade 3 or 4 reactions, and 2 (2.17%) received epinephrine. CONCLUSIONS Preschool TN-OIT in a real-world, multicenter setting appears safe and tolerable, with results comparable with our previously reported peanut OIT findings.
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Affiliation(s)
- Stephanie C Erdle
- Division of Allergy and Immunology, Department of Pediatrics, University of British Columbia, BC Children's Hospital, Vancouver, British Columbia, Canada.
| | - Victoria E Cook
- Division of Allergy and Immunology, Department of Pediatrics, University of British Columbia, BC Children's Hospital, Vancouver, British Columbia, Canada; Community Allergy Clinic, Victoria, British Columbia, Canada
| | - Scott B Cameron
- Division of Allergy and Immunology, Department of Pediatrics, University of British Columbia, BC Children's Hospital, Vancouver, British Columbia, Canada; Community Allergy Clinic, Victoria, British Columbia, Canada
| | - Joanne Yeung
- Division of Allergy and Immunology, Department of Pediatrics, University of British Columbia, BC Children's Hospital, Vancouver, British Columbia, Canada; Vancouver Kids Allergy, Vancouver, British Columbia, Canada
| | - Sandeep Kapur
- Division of Allergy, Department of Pediatrics, Dalhousie University, IWK Health Centre, Halifax, Nova Scotia, Canada; Halifax Allergy and Asthma Associates, Halifax, Nova Scotia, Canada
| | - Mary McHenry
- Division of Allergy, Department of Pediatrics, Dalhousie University, IWK Health Centre, Halifax, Nova Scotia, Canada; Halifax Allergy and Asthma Associates, Halifax, Nova Scotia, Canada
| | - Edmond S Chan
- Division of Allergy and Immunology, Department of Pediatrics, University of British Columbia, BC Children's Hospital, Vancouver, British Columbia, Canada
| | - Raymond Mak
- Division of Allergy and Immunology, Department of Pediatrics, University of British Columbia, BC Children's Hospital, Vancouver, British Columbia, Canada
| | - Gregory A Rex
- Division of Allergy, Department of Pediatrics, Dalhousie University, IWK Health Centre, Halifax, Nova Scotia, Canada; Halifax Allergy and Asthma Associates, Halifax, Nova Scotia, Canada
| | - Tiffany Wong
- Division of Allergy and Immunology, Department of Pediatrics, University of British Columbia, BC Children's Hospital, Vancouver, British Columbia, Canada
| | - Lianne Soller
- Division of Allergy and Immunology, Department of Pediatrics, University of British Columbia, BC Children's Hospital, Vancouver, British Columbia, Canada
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23
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Dantzer JA, Kim EH, Chinthrajah RS, Wood RA. Treatment for food allergy: Current status and unmet needs. J Allergy Clin Immunol 2023; 151:1-14. [PMID: 35998790 DOI: 10.1016/j.jaci.2022.08.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/12/2022] [Accepted: 08/18/2022] [Indexed: 02/04/2023]
Abstract
The treatment of food allergy has traditionally relied on avoidance of the offending food(s) and use of emergency medications in the event of accidental exposures. However, this long-standing paradigm is beginning to shift, as a variety of treatment approaches have been and are being developed. This report provides an overview of the past, present, and future landscape of interventional clinical trials for the treatment of food allergy. It focuses on specific issues related to participant characteristics, protocol design, and study end points in the key clinical trials in the literature and examine how differences between studies may impact the clinical significance of the study results. Recommendations are provided for the optimization of future trial designs and focus on specific unmet needs in this rapidly evolving field.
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Affiliation(s)
- Jennifer A Dantzer
- Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, Johns Hopkins School of Medicine, Baltimore, Md
| | - Edwin H Kim
- Division of Pediatric Allergy and Immunology and University of North Carolina Food Allergy Initiative, Department of Pediatrics, University of North Carolina School of Medicine, Chapel Hill, NC
| | - R Sharon Chinthrajah
- Department of Medicine, Sean N. Parker Center for Allergy and Asthma Research, and Department of Pediatrics, Stanford University, Stanford, Calif
| | - Robert A Wood
- Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, Johns Hopkins School of Medicine, Baltimore, Md.
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Weiler CR, Schrijvers R, Golden DBK. Anaphylaxis: Advances in the Past 10 Years. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2023; 11:51-62. [PMID: 36162799 DOI: 10.1016/j.jaip.2022.09.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/06/2022] [Accepted: 09/12/2022] [Indexed: 01/11/2023]
Abstract
In the past 10 years, anaphylaxis has grown into its own special area of study within Allergy-Immunology, both at the bench and at the bedside. This review focuses on some of the most clinically relevant advances over the past decade. These include simplified and more inclusive diagnostic criteria for adults and children, uniform definition of biphasic anaphylaxis, and improved systems for objective severity grading. Studies reported in the past decade have led to improved understanding of normal and abnormal regulation of mast cell function, translating into better diagnostic and therapeutic approaches to patients with anaphylaxis. Research has provided improved recognition and treatment of mast cell disorders and has identified a new condition, hereditary α-tryptasemia, that may impact anaphylactic syndromes. We have learned to recognize new causes (α-gal), new pathways (Mas-related G protein-coupled receptor-X2), and many risk factors for severe anaphylaxis. The stability of epinephrine in autoinjectors was reported to be very good for several years after the labeled expiry date, and it can tolerate freezing and thawing. Repeated and prolonged exposure to excessive heat leads to degradation of epinephrine activity. New treatments to prevent severe anaphylaxis have been described, using new ways to block the IgE receptor or modulate intracellular signaling pathways.
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Affiliation(s)
| | - Rik Schrijvers
- Department of Microbiology, Immunology and Transplantation, Allergy and Clinical Immunology Research Group, Leuven, Belgium
| | - David B K Golden
- Division of Allergy/Clinical Immunology, Johns Hopkins School of Medicine, Baltimore, Md.
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25
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Lee T, Edwards-Salmon S, Vickery BP. Current and future treatments for peanut allergy. Clin Exp Allergy 2023; 53:10-24. [PMID: 36222329 DOI: 10.1111/cea.14244] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 09/26/2022] [Accepted: 09/28/2022] [Indexed: 01/24/2023]
Abstract
Peanut allergy (PA) is a common, burdensome childhood disease that in most patients continues into adulthood and has historically been untreatable. However, peanut oral immunotherapy (POIT) is increasingly being incorporated into allergy practices, using both the first FDA-approved product, PTAH (previously AR101; Palforzia™, Aimmune Therapeutics), as well as store-bought peanut products. POIT in preschoolers continues to gain more acceptance as evidence accrues that it is a safe and feasible approach that may have distinct advantages. There are many new therapeutic interventions currently under study with a variety of different approaches and potential mechanisms. With respect to other forms of immunotherapy, none are currently approved, but the epicutaneous approach is the most well-studied and others are being actively investigated, including sublingual, subcutaneous, and intralymphatic. Biologics are gaining evidence both as adjunctive treatments to POIT and as monotherapy. Omalizumab is the most widely studied biologic for PA but others also have potential. Looking ahead to a future therapeutic landscape of choice, allergists will need to understand each patient's goal of treatment through shared decision-making and fully evaluate the risks, benefits, and alternatives of each new therapy.
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Affiliation(s)
- Tricia Lee
- Children's Healthcare of Atlanta, Atlanta, Georgia, USA.,Emory University School of Medicine, Atlanta, Georgia, USA
| | | | - Brian P Vickery
- Children's Healthcare of Atlanta, Atlanta, Georgia, USA.,Emory University School of Medicine, Atlanta, Georgia, USA
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26
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Zuberbier T, Wood RA, Bindslev-Jensen C, Fiocchi A, Chinthrajah RS, Worm M, Deschildre A, Fernandez-Rivas M, Santos AF, Jaumont X, Tassinari P. Omalizumab in IgE-Mediated Food Allergy: A Systematic Review and Meta-Analysis. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2022; 11:1134-1146. [PMID: 36529441 DOI: 10.1016/j.jaip.2022.11.036] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 11/14/2022] [Accepted: 11/26/2022] [Indexed: 12/16/2022]
Abstract
BACKGROUND A growing number of studies have shown encouraging results with omalizumab (OMA) as monotherapy and as an adjunct to oral immunotherapy (OMA+OIT) in patients with single/multiple food allergies. OBJECTIVES To evaluate the efficacy and safety of OMA or OMA+OIT in patients with immunoglobulin E (IgE)-mediated food allergy. METHODS An extensive literature search (inception to December 31, 2020) was performed to identify randomized, controlled, and observational studies that assessed OMA as monotherapy or OMA+OIT in patients with IgE-mediated food allergy. The outcomes were an increase in tolerated dose of foods, successful desensitization, sustained unresponsiveness, immunological biomarkers, severity of allergic reactions to food, quality of life (QoL), and safety. A P less than .05 was considered significant. RESULTS In total, 36 studies were included. The OMA monotherapy (vs pre-OMA) significantly increased the tolerated dose of multiple foods; increased the threshold of tolerated dose for milk, egg, wheat, and baked milk; improved QoL; and reduced food-induced allergic reactions (all P < .01). The OMA+OIT significantly increased the tolerated dose of multiple foods (vs placebo and pre-OMA), desensitization (vs placebo+OIT and pre-OMA) (all P ≤ .01), and improved QoL (vs pre-OMA) and immunoglobulin G4 levels (both P < .01). No major safety concerns were identified. CONCLUSIONS In IgE-mediated food allergy, OMA can help patients consume multiple foods and allow for food dose escalation. As an adjunct to OIT, OMA can also support high-dose desensitization and higher maintenance doses. Further studies are warranted to empirically evaluate the effect of OMA and confirm these findings.
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Affiliation(s)
- Torsten Zuberbier
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Allergology and Immunology, Berlin, Germany; Institute for Allergology, Charité - University Medicine Berlin, Corporate Member of Freie University of Berlin and Humboldt University of Berlin, Berlin, Germany.
| | - Robert A Wood
- Division of Allergy and Immunology, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Md
| | - Carsten Bindslev-Jensen
- Odense Research Centre for Anaphylaxis, Odense University Hospital, Odense, Denmark; Department of Dermatology and Allergy Centre, Odense University Hospital, Odense, Denmark
| | - Alessandro Fiocchi
- Translational Research in Paediatric Specialities Area, Division of Allergy, Bambino Gesù Children's Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - R Sharon Chinthrajah
- Sean N. Parker Centre for Allergy and Asthma Research, Stanford University, Stanford, Calif; Division of Pulmonary and Critical Care Medicine, Division of Allergy, Immunology and Rheumatology, Stanford University, Stanford, Calif
| | - Margitta Worm
- Division of Allergy and Immunology, Department of Dermatology, Venerology and Allergy, Charité - University Medicine, Berlin, Germany
| | - Antoine Deschildre
- CHU Lille, Pediatric Pulmonology and Allergy Unit, Jeanne de Flandre Hospital, University of Nord de France, Lille, France
| | - Montserrat Fernandez-Rivas
- Allergy Department, Hospital Clinico San Carlos, Universidad Complutense de Madrid (UCM), Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Alexandra F Santos
- Department of Women and Children's Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK; Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, London, UK; Children's Allergy Service, Evelina London, Guy's and St Thomas' Hospital, London, UK; Asthma UK Centre in Allergic Mechanisms of Asthma, London, UK
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Abstract
PURPOSE OF REVIEW Systematic scoping review, focusing on randomized clinical trials of recent research addressing tree nut allergy. RECENT FINDINGS This review addresses published, unpublished, and re-analyzed studies on tree nut allergy definition, epidemiology, etiology, diagnosis, prognosis, and therapy. SUMMARY The importance of tree nut allergy spans nations, economies, and cultures. While broad themes in epidemiology, etiology, diagnosis, prognosis, and therapy are emerging, the next major advance in tree nut allergy will require large, robust studies to deliver results important to patients and families.
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Wood RA, Chinthrajah RS, Rudman Spergel AK, Babineau DC, Sicherer SH, Kim EH, Shreffler WG, Jones SM, Leung DY, Vickery BP, Bird JA, Spergel JM, Kulis M, Iqbal A, Kaufman D, Umetsu DT, Ligueros-Saylan M, Uddin A, Fogel RB, Lussier S, Mudd K, Poyser J, MacPhee M, Veri M, Davidson W, Hamrah S, Long A, Togias A. Protocol design and synopsis: Omalizumab as Monotherapy and as Adjunct Therapy to Multiallergen OIT in Children and Adults with Food Allergy (OUtMATCH). THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. GLOBAL 2022; 1:225-232. [PMID: 37779534 PMCID: PMC10509974 DOI: 10.1016/j.jacig.2022.05.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 04/21/2022] [Accepted: 05/24/2022] [Indexed: 10/03/2023]
Abstract
Background Food allergy is common and causes substantial morbidity and even mortality. Safe and effective treatments for food allergy would therefore be highly desirable, especially for individuals with multiple food allergies. Objectives Our aim was to describe a phase 3 study on treatment of patients with multiple food allergies with omalizumab. Methods The study was developed as a collaboration between the Consortium for Food Allergy Research, the National Institute of Allergy and Infectious Diseases, and 2 industry sponsors (Genentech and Novartis). Results The study is currently under way, enrolling participants from age 1 year to age 55 years who are allergic to peanut and at least 2 other foods (including milk, egg, wheat, cashew, hazelnut, and walnut). The study is designed to address 3 major questions. First, stage 1 will study the potential value of omalizumab for the treatment of patients with peanut allergy and at least 2 other common food allergens. Second, stage 2 will directly compare treatment of patients with multifood allergies using omalizumab as monotherapy versus treatment with omalizumab-facilitated multiallergen oral immunotherapy in which omalizumab is used as an adjunctive treatment. Third, stage 3 will address the longer-term outcomes following these treatment approaches, including the introduction of dietary forms of the study foods to induce or maintain desensitization. Conclusions This phase 3 study will provide important information on the potential of omalizumab to treat patients with multiple food allergies.
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Affiliation(s)
- Robert A. Wood
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Md
| | - R. Sharon Chinthrajah
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, Calif
| | - Amanda K. Rudman Spergel
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Md
| | | | - Scott H. Sicherer
- Division of Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Edwin H. Kim
- Department of Pediatrics, University of North Carolina School of Medicine, Chapel Hill, NC
| | - Wayne G. Shreffler
- Pediatric Allergy and Immunology, Massachusetts General Hospital, Boston, Mass
| | - Stacie M. Jones
- University of Arkansas for Medical Sciences and Arkansas Children’s Hospital, Little Rock, Ark
| | | | - Brian P. Vickery
- Emory University School of Medicine and Children’s Healthcare of Atlanta, Atlanta, Ga
| | - J. Andrew Bird
- Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas, Tex
| | - Jonathan M. Spergel
- Division of Allergy and Immunology, Children’s Hospital of Philadelphia, Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pa
| | - Michael Kulis
- Department of Pediatrics, University of North Carolina School of Medicine, Chapel Hill, NC
| | | | | | | | | | - Alkaz Uddin
- Novartis Pharmaceuticals, Basel, Switzerland
| | | | | | - Kim Mudd
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Md
| | - Julian Poyser
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Md
| | - Martin MacPhee
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Md
| | - Maria Veri
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Md
| | - Wendy Davidson
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Md
| | - Sanaz Hamrah
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Md
| | - Andrew Long
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, Calif
| | - Alkis Togias
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Md
| | - OUtMATCH study team
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Md
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, Calif
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Md
- Rho Federal Systems Division, Chapel Hill, NC
- Division of Allergy and Immunology, Jaffe Food Allergy Institute, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY
- Department of Pediatrics, University of North Carolina School of Medicine, Chapel Hill, NC
- Pediatric Allergy and Immunology, Massachusetts General Hospital, Boston, Mass
- University of Arkansas for Medical Sciences and Arkansas Children’s Hospital, Little Rock, Ark
- Department of Pediatrics, National Jewish Health, Denverr, Colo
- Emory University School of Medicine and Children’s Healthcare of Atlanta, Atlanta, Ga
- Department of Pediatrics, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas, Tex
- Division of Allergy and Immunology, Children’s Hospital of Philadelphia, Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pa
- Genentech/Roche, South San Francisco, Calif
- Novartis Pharmaceuticals, Basel, Switzerland
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Zhou X, Yu W, Dunham DM, Schuetz JP, Blish CA, DeKruyff RH, Nadeau KC. Cytometric analysis reveals an association between allergen-responsive natural killer cells and human peanut allergy. J Clin Invest 2022; 132:157962. [PMID: 36250466 PMCID: PMC9566921 DOI: 10.1172/jci157962] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 08/16/2022] [Indexed: 11/26/2022] Open
Abstract
Food allergies are a leading cause of anaphylaxis, and allergen-specific immune responses in both the innate and the adaptive immune system play key roles in its pathogenesis. We conducted a comprehensive phenotypic and functional investigation of immune cell responses from nonallergic (NA) and peanut allergic (PA) participants cultured with media alone or peanut protein and found, surprisingly, that NK cell activation was strongly associated with the immune response to allergen in PA participants. Peanut-responsive NK cells manifested a distinct expression pattern in PA participants compared with NA participants. Allergen-activated NK cells expressed both Th2 and immune regulatory cytokines, hinting at a potential functional role in mediating and regulating the Th2 allergic response. Depletion of CD3+ T cells attenuated the response of NK cells to peanut-allergen stimulation, suggesting that peanut-responsive NK cells are T cell dependent. We also showed that oral immune therapy was associated with decreased NK responses to peanut allergen stimulation in vitro. These results demonstrate that NK cells are associated with the food-allergic immune response, and the magnitude of this mobilized cell population suggests that they play a functional role in allergic immunity.
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Affiliation(s)
- Xiaoying Zhou
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University and Division of Pulmonary, Allergy, and Critical Care Medicine, Stanford, California, USA
| | - Wong Yu
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University and Division of Pulmonary, Allergy, and Critical Care Medicine, Stanford, California, USA
- Division of Allergy, Immunology and Blood and Marrow Transplantation, Department of Pediatrics, University of California, San Francisco, California, USA
| | - Diane M. Dunham
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University and Division of Pulmonary, Allergy, and Critical Care Medicine, Stanford, California, USA
| | - Jackson P. Schuetz
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University and Division of Pulmonary, Allergy, and Critical Care Medicine, Stanford, California, USA
| | - Catherine A. Blish
- Program in Immunology and Department of Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Rosemarie H. DeKruyff
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University and Division of Pulmonary, Allergy, and Critical Care Medicine, Stanford, California, USA
| | - Kari C. Nadeau
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University and Division of Pulmonary, Allergy, and Critical Care Medicine, Stanford, California, USA
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30
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Sindher SB, Long A, Chin AR, Hy A, Sampath V, Nadeau KC, Chinthrajah RS. Food allergy, mechanisms, diagnosis and treatment: Innovation through a multi-targeted approach. Allergy 2022; 77:2937-2948. [PMID: 35730331 DOI: 10.1111/all.15418] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 06/17/2022] [Accepted: 06/19/2022] [Indexed: 01/27/2023]
Abstract
The incidence of food allergy (FA) has continued to rise over the last several decades, posing significant burdens on health and quality of life. Significant strides into the advancement of FA diagnosis, prevention, and treatment have been made in recent years. In an effort to lower reliance on resource-intensive food challenges, the field has continued work toward the development of highly sensitive and specific assays capable of high-throughput analysis to assist in the diagnosis FA. In looking toward early infancy as a critical period in the development of allergy or acquisition of tolerance, evidence has increasingly suggested that early intervention via the early introduction of food allergens and maintenance of skin barrier function may decrease the risk of FA. As such, large-scale investigations are underway evaluating infant feeding and the impact of emollient and steroid use in infants with dry skin for the prevention of allergy. On the other end of the spectrum, the past few years have been witness to an explosive increase in clinical trials of novel and innovative therapeutic strategies aimed at the treatment of FA in those whom the disease has already manifested. A milestone in the field, 2020 marked the approval of the first drug, oral peanut allergen, for the indication of peanut allergy. With a foundation of promising data supporting the safety and efficacy of single- and multi-allergen oral immunotherapy, current efforts have turned toward the use of probiotics, biologic agents, and modified allergens to optimize and improve upon existing paradigms. Through these advancements, the field hopes to gain footing in the ongoing battle against FA.
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Affiliation(s)
- Sayantani B Sindher
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, California, USA
| | - Andrew Long
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, California, USA
| | - Andrew R Chin
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, California, USA
| | - Angela Hy
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, California, USA
| | - Vanitha Sampath
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, California, USA
| | - Kari C Nadeau
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, California, USA
| | - R Sharon Chinthrajah
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, California, USA
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Wood RA, Chinthrajah RS, Eggel A, Bottoli I, Gautier A, Woisetschlaeger M, Tassinari P, Altman P. The rationale for development of ligelizumab in food allergy. World Allergy Organ J 2022; 15:100690. [PMID: 36185545 PMCID: PMC9483652 DOI: 10.1016/j.waojou.2022.100690] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 08/01/2022] [Accepted: 08/11/2022] [Indexed: 11/29/2022] Open
Abstract
Food allergy (FA) is a growing healthcare problem worldwide and the rising prevalence in many countries can be attributed to lifestyle, environmental, and nutritional changes. Immunoglobulin E (IgE)-mediated FA is the most common form of FA affecting approximately 3%-10% of adults and 8% of children across the globe. Food allergen-induced immediate hypersensitivity reactions mediated by IgE and high-affinity IgE receptor (FcεRI) complexes on mast cells and basophils are a major hallmark of the disease. FA can affect several aspects of health-related quality of life and impose a substantial financial burden on patients and healthcare systems. Although currently there is one United States Food and Drug Administration (FDA) and European Medicines Agency (EMA)-approved treatment for peanut allergy (Palforzia), the main treatment approaches are based on allergen avoidance and symptom management. Thus, there is an urgent need for more effective and ideally disease-modifying strategies. Given the crucial role of IgE in FA, anti-IgE monoclonal antibodies are considered promising therapeutic agents. Talizumab was the first humanized anti-IgE antibody to demonstrate substantial protection against allergic reactions from accidental peanut exposure by substantially increasing the peanut reactivity threshold on oral food challenge. However, development of talizumab was discontinued and further trials were performed using omalizumab. In double-blind, Phase 2, placebo-controlled trials in patients with multi-FAs, sustained dosing with omalizumab, or omalizumab in combination with oral immunotherapy, enabled rapid desensitization to multiple trigger foods. In this review, we describe the development of ligelizumab (a derivative of talizumab), a next generation, humanized monoclonal anti-IgE antibody, its existing clinical evidence, and its potential in the management of FA. When compared with omalizumab, ligelizumab binds with ∼88-fold higher affinity for human IgE and recognizes a different epitope that substantially overlaps with the binding site of FcεRI. These properties translate into a high potency to block IgE/FcεRI signaling in both in vitro and in vivo studies. Given its efficient suppression of IgE levels, good safety and pharmacokinetic/pharmacodynamic profile, ligelizumab clearly warrants further studies for the potential management of FA.
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Affiliation(s)
- Robert A Wood
- Division of Allergy & Immunology, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - R Sharon Chinthrajah
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University, Stanford, CA, USA
| | - Alexander Eggel
- Department of BioMedical Research, University of Bern, Bern, Switzerland.,Department of Rheumatology and Immunology, University Hospital Bern, Bern, Switzerland
| | | | | | | | | | - Pablo Altman
- Novartis Pharmaceuticals Corporation, East Hanover, NJ, USA
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32
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Albuhairi S, Rachid R. The use of adjunctive therapies during oral immunotherapy: A focus on biologics. JOURNAL OF FOOD ALLERGY 2022; 4:65-70. [PMID: 39021843 PMCID: PMC11250515 DOI: 10.2500/jfa.2022.4.220019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Oral immunotherapy (OIT), thus far, is the most evaluated therapeutic approach for food allergy. However, OIT is not known to lead to a cure, and it carries a risk for allergic reactions. Adjunct therapies to OIT are currently being investigated to evaluate their effect on safety and outcome. Of these therapies, omalizumab is the most evaluated biologic. There is mounting evidence that omalizumab is effective in inducing rapid desensitization of OIT in both single-food and multiallergen OIT, while diminishing the rate of adverse reactions. Evaluation of other adjunct biologics, such as dupilumab and bacterial therapy, is underway.
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Affiliation(s)
- Sultan Albuhairi
- From the Allergy and Immunology Section, Department of Pediatrics, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Rima Rachid
- Division of Immunology, Boston Children’s Hospital, Boston, Massachusetts; and
- Department of Pediatrics, Harvard Medical School, Boston, Massachusetts
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Abstract
Tree nut (TN) allergy is common, with a global prevalence of up to 4.9%. TN allergy is persistent in most patients, and accidental reactions are common. There is considerable clinical cross-reactivity between cashew and pistachio, and between walnut and pecan. A diagnosis of TN allergy is based on a history of clinical reaction on ingestion, along with confirmed sensitization through either skin-prick or serum immunoglobulin E (IgE) testing. Component testing and food challenges may be required in patients with birch pollinosis to distinguish between IgE-mediated allergy to a heat-stable protein and pollen food allergy syndrome. There is available evidence that TN oral immunotherapy (OIT) is reasonably safe and effective. There are numerous nonpharmaceutical food products to facilitate TN-OIT dosing. TN OIT should be offered as a treatment option for patients with TN allergy.
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Affiliation(s)
- Stephanie Erdle
- From the Division of Clinical Immunology and Allergy, Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada; and
| | - Victoria E. Cook
- From the Division of Clinical Immunology and Allergy, Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada; and
- Allergy Victoria, Victoria, British Columbia, Canada
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Sindher SB, Kumar D, Cao S, Purington N, Long A, Sampath V, Zedeck SS, Woch MA, Garcia‐Lloret M, Chinthrajah RS. Phase 2, randomized multi oral immunotherapy with omalizumab 'real life' study. Allergy 2022; 77:1873-1884. [PMID: 35014049 DOI: 10.1111/all.15217] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 12/17/2021] [Accepted: 12/22/2021] [Indexed: 01/03/2023]
Abstract
BACKGROUND Oral immunotherapy (OIT) is frequently discontinued due to adverse events (AEs) and current data suggests that lowering OIT doses can minimize severity and frequency of AEs. However, the minimum daily dose that can enable desensitization and induce immune responses in multi-food OIT (mOIT) is unknown. METHODS Participants aged 2-25 years with multi-food allergies were pretreated with fixed-dose omalizumab (150 mg, 3 doses, every 4 weeks), and randomized 1:1 to receive mOIT to a total maintenance dose of either 300 or 1200 mg total protein, (total dose includes at least two and up to a max of five allergens) and then transitioned to real-food protein equivalents after 18 weeks of treatment. The primary endpoint was the proportion of subjects with increases in IgG4/IgE ratio of at least 2 allergens by ≥25% from baseline after 18 weeks of therapy. The primary efficacy and safety analyses were done in the intention-to-treat population. RESULTS Sixty participants were enrolled across two sites. Seventy percent of participants in both arms showed changes in sIgG4/sIgE ratio in at least 2 allergens with no difference between the treatment groups (OR [95% CI] = 1.00 [0.29, 3.49]). Overall, there were no differences in AEs between the 300 and 1200 mg groups (19% vs. 17%, p = .69), respectively. CONCLUSIONS Our data suggest that plasma marker changes are induced early, even at a total protein dose of 300 mg inclusive of multiple allergens when mOIT is combined with fixed-dose omalizumab. Identification of optimal mOIT dosing with adjunct omalizumab is needed for the long-term success of OIT. TRIAL REGISTRATION ClinicalTrials.gov (NCT03181009).
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Affiliation(s)
- Sayantani B. Sindher
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University Stanford California USA
- Division of Pulmonary and Critical Care Medicine Stanford University Stanford California USA
| | - Divya Kumar
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University Stanford California USA
- Division of Pulmonary and Critical Care Medicine Stanford University Stanford California USA
| | - Shu Cao
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University Stanford California USA
- Division of Pulmonary and Critical Care Medicine Stanford University Stanford California USA
| | - Natasha Purington
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University Stanford California USA
- Quantitative Sciences Unit Stanford University Stanford California USA
| | - Andrew Long
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University Stanford California USA
- Division of Pulmonary and Critical Care Medicine Stanford University Stanford California USA
| | - Vanitha Sampath
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University Stanford California USA
- Division of Pulmonary and Critical Care Medicine Stanford University Stanford California USA
| | - Stacey S. Zedeck
- University of California Los Angeles California USA
- Department of Pediatrics Division of Immunology Allergy, and Rheumatology Los Angeles California USA
| | - Margaret A. Woch
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University Stanford California USA
| | - Maria Garcia‐Lloret
- University of California Los Angeles California USA
- Department of Pediatrics Division of Immunology Allergy, and Rheumatology Los Angeles California USA
| | - Rebecca Sharon Chinthrajah
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University Stanford California USA
- Division of Pulmonary and Critical Care Medicine Stanford University Stanford California USA
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Chinthrajah RS, Jones SM, Kim EH, Sicherer SH, Shreffler W, Lanser BJ, Atri N, Babineau DC, Adelman DC, Iqbal A, Limb SL, Rudman Spergel AK, Togias A, Wood RA. Updating the CoFAR Grading Scale for Systemic Allergic Reactions in Food Allergy. J Allergy Clin Immunol 2022; 149:2166-2170.e1. [PMID: 35026206 PMCID: PMC9177543 DOI: 10.1016/j.jaci.2021.12.789] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 12/28/2021] [Accepted: 12/30/2021] [Indexed: 01/29/2023]
Abstract
BACKGROUND Immunotherapy is promising as an efficacious treatment for food allergy. Other food allergy treatments are also under development. However, adverse allergic events during treatment, as well as during oral food challenges, are common and reporting is not standardized. OBJECTIVE A more nuanced grading scale is needed to create a comprehensive and universal system to categorize adverse events and their severity for food allergy clinical trials. METHODS Starting with the 2012 Consortium for Food Allergy Research (CoFAR) Grading Scale and the World Allergy Organization Grading System, we developed the CoFAR Grading Scale for Systemic Allergic Reactions, Version 3.0, in collaboration with industry partners with expert opinion. RESULTS The revised CoFAR Grading Scale for Systemic Allergic Reactions has 5 levels of increasing severity, ranging from generalized urticaria, localized angioedema, rhinitis, and abdominal pain (grade 1) to death (grade 5). Systemic reactions are further categorized within each grade by relevant organ system. Mild, single-system reactions are differentiated from mild, multisystem reactions. Lower respiratory tract symptoms are graded on the basis of response to therapy; those that are refractory to standard treatment (eg, requiring >3 doses of intramuscular epinephrine, continuous intravenous epinephrine infusion, and continuous albuterol nebulization) and respiratory compromise requiring mechanical ventilation are classified as grade 4, life-threatening reactions. CONCLUSIONS Universal and consistent use of the revised CoFAR Grading Scale beyond the CoFAR centers would allow for better data aggregation and safety comparisons in clinical trials for food allergy.
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Affiliation(s)
- R. Sharon Chinthrajah
- Sean N Parker Center for Allergy and Asthma Research at Stanford University, Stanford University, CA
| | - Stacie M. Jones
- University of Arkansas for Medical Sciences and Arkansas Children’s Hospital, Little Rock, AR
| | - Edwin H Kim
- Division of Pediatric Allergy and Immunology, Department of Pediatrics, University of North Carolina School of Medicine, Chapel Hill, NC
| | - Scott H. Sicherer
- Elliot and Roslyn Jaffe Food Allergy Institute, Division of Allergy and Immunology, Kravis Children’s Hospital, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York
| | - Wayne Shreffler
- Department of Pediatrics, Massachusetts General Hospital and Harvard Medical School, Boston, MA
| | - Bruce J. Lanser
- Department of Pediatrics, National Jewish Health, Denver, CO
| | - Negin Atri
- Division of Allergy, Immunology and Transplantation, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD
| | | | - Daniel C. Adelman
- Department of Medicine, Allergy/Immunology, University of California, San Francisco
| | - Ahmar Iqbal
- Medical Affairs, Genentech/Roche, South San Francisco, CA
| | | | - Amanda K. Rudman Spergel
- Division of Allergy, Immunology and Transplantation, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD
| | - Alkis Togias
- Division of Allergy, Immunology and Transplantation, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD
| | - Robert A. Wood
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD
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Brozek JL, Firmino RT, Bognanni A, Arasi S, Ansotegui I, Assa'ad AH, Bahna SL, Canani RB, Bozzola M, Chu DK, Dahdah L, Dupont C, Dziechciarz P, Ebisawa M, Galli E, Horvath A, Kamenwa R, Lack G, Li H, Martelli A, Nowak-Węgrzyn A, Papadopoulos NG, Pawankar R, Roldan Y, Said M, Sánchez-Borges M, Shamir R, Spergel JM, Szajewska H, Terracciano L, Vandenplas Y, Venter C, Waffenschmidt S, Waserman S, Warner A, Wong GW, Fiocchi A, Schünemann HJ. World Allergy Organization (WAO) Diagnosis and Rationale for Action against Cow's Milk Allergy (DRACMA) Guideline update - XIV - Recommendations on CMA immunotherapy. World Allergy Organ J 2022; 15:100646. [PMID: 35539896 PMCID: PMC9061625 DOI: 10.1016/j.waojou.2022.100646] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 02/24/2022] [Accepted: 03/17/2022] [Indexed: 12/28/2022] Open
Abstract
Background The prevalence of cow's milk allergy (CMA) is approximately 2-4.5% in infants and less than 0.5% in adults. Most children outgrow cow's milk allergy in early childhood, particularly that to the baked milk products. Immunotherapy with unheated cow's milk has been used as a treatment option for those who have not yet outgrown CMA, but the benefits must be balanced with the adverse effects. Objective These evidence-based guidelines from the World Allergy Organization (WAO) intend to support patients, clinicians, and others in decisions about the use of oral and epicutaneous immunotherapy for the treatment of IgE-mediated CMA. Methods WAO formed a multidisciplinary guideline panel balanced to include the views of all stakeholders and to minimize potential biases from competing interests. The McMaster University GRADE Centre supported the guideline-development process, including updating or performing systematic evidence reviews. The panel prioritized clinical questions and outcomes according to their importance for clinicians and patients. The Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach was used, including GRADE Evidence-to-Decision frameworks, which were subject to public comment. Results After a careful review of the summarized evidence and thorough discussions the WAO guideline panel suggests: a) using oral immunotherapy with unheated cow's milk in those individuals with confirmed IgE-mediated CMA who value the ability to consume controlled quantities of milk more than avoiding the large adverse effects of therapy, b) not using oral immunotherapy with unheated cow's milk in those who value avoiding large adverse effects of therapy more than the ability to consume controlled quantities of milk, c) using omalizumab in those starting oral immunotherapy with unheated cow's milk, d) not using oral immunotherapy with baked cow's milk in those who do not tolerate both unheated and baked milk, and e) not using epicutaneous immunotherapy outside of a research setting. The recommendations are labeled "conditional" due to the low certainty about the health effects based on the available evidence. Conclusions Clinicians, patients, and their family members might want to discuss all the potential desirable and undesirable effects of oral immunotherapy for IgE-mediated CMA and integrate them with the patients' values and preferences before deciding on a treatment option. More robust research is needed to determine with greater certainty which interventions are likely to be the most beneficial with the least harms, and to develop safer, low-cost, and equitable treatments.
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Affiliation(s)
- Jan L. Brozek
- Department of Health Research Methods, Evidence & Impact, McMaster University, Hamilton, Ontario, Canada
- Department of Medicine, Division of Clinical Immunology and Allergy, McMaster University, Hamilton, Ontario, Canada
| | - Ramon T. Firmino
- Faculty of Medical Sciences of Campina Grande, UNIFACISA University Centre, Campina Grande, Paraiba, Brazil
| | - Antonio Bognanni
- Department of Health Research Methods, Evidence & Impact, McMaster University, Hamilton, Ontario, Canada
| | - Stefania Arasi
- Division of Allergy, Bambino Gesù Children's Hospital, Rome, Italy
| | | | - Amal H. Assa'ad
- Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Sami L. Bahna
- Allergy and Immunology Section, Louisiana State University Health Sciences Center, Shreveport, LA, USA
| | - Roberto Berni Canani
- Pediatric Allergy Program at the Department of Translational Medical Science, and ImmunoNutritionLab at Ceinge Advanced Biotechnologies, University of Naples Federico II, Naples, Italy
| | - Martin Bozzola
- Department of Pediatrics, British Hospital-Perdriel, Buenos Aires, Argentina
| | - Derek K. Chu
- Department of Health Research Methods, Evidence & Impact, McMaster University, Hamilton, Ontario, Canada
- Department of Medicine, Division of Clinical Immunology and Allergy, McMaster University, Hamilton, Ontario, Canada
| | - Lamia Dahdah
- Hospital Quironsalud Bizkaia, Bilbao-Erandio, Spain
| | - Christophe Dupont
- Paris Descartes University, Pediatric Gastroenterology, Necker Hospital, Paris, France
- Clinique Marcel Sembat, Boulogne-Billancourt, France
| | - Piotr Dziechciarz
- Department of Paediatrics, Medical University of Warsaw, Warsaw, Poland
| | - Motohiro Ebisawa
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization, Sagamihara National Hospital, Kanagawa, Japan
| | - Elena Galli
- Pediatric Allergy Unit, San Pietro Hospital – Fatebenefratelli, Rome, Italy
| | - Andrea Horvath
- Department of Paediatrics, Medical University of Warsaw, Warsaw, Poland
| | - Rose Kamenwa
- Department of Paediatrics and Child Health, Aga Khan University Hospital, Nairobi, Kenya
| | - Gideon Lack
- King's College London, Asthma-UK Centre in Allergic Mechanisms of Asthma, Department of Pediatric Allergy, St Thomas' Hospital, London, UK
| | - Haiqi Li
- Department of Primary Child Care, Children's Hospital, Chongqing Medical University, China
| | | | - Anna Nowak-Węgrzyn
- Department of Pediatrics, NYU Grossman School of Medicine, Hassenfeld Children's Hospital, New York, NY, USA
- Department of Pediatrics, Gastroenterology and Nutrition, Collegium Medicum, University of Warmia and Mazury, Olsztyn, Poland
| | - Nikolaos G. Papadopoulos
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, University of Manchester, Manchester, UK
- Allergy Department, 2nd Paediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - Ruby Pawankar
- Division of Allergy, Department of Pediatrics, Nippon Medical School, Tokyo, Japan
| | - Yetiani Roldan
- Department of Health Research Methods, Evidence & Impact, McMaster University, Hamilton, Ontario, Canada
| | - Maria Said
- Allergy & Anaphylaxis Australia, Castle Hill, New South Wales, Australia
| | - Mario Sánchez-Borges
- Allergy and Clinical Immunology Department, Centro Médico Docente La Trinidad and Clínica El Avila, Caracas, Venezuela
| | - Raanan Shamir
- Institute for Gastroenterology, Nutrition and Liver Diseases, Schneider Children's Medical Center of Israel, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Jonathan M. Spergel
- Division of Allergy and Immunology, The Children's Hospital of Philadelphia, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - Hania Szajewska
- Department of Paediatrics, Medical University of Warsaw, Warsaw, Poland
| | - Luigi Terracciano
- Pediatric Primary Care, National Pediatric Health Care System, Milan, Italy
| | - Yvan Vandenplas
- Department of Pediatric Gastroenterology, Universitair Ziekenhuis Brussel, Brussels, Belgium
| | - Carina Venter
- Section of Allergy and Immunology, Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, CO, USA
| | - Siw Waffenschmidt
- Department of Health Research Methods, Evidence & Impact, McMaster University, Hamilton, Ontario, Canada
- Institute for Quality and Efficiency in Health Care, Cologne, Germany
| | - Susan Waserman
- Department of Medicine, Division of Clinical Immunology and Allergy, McMaster University, Hamilton, Ontario, Canada
| | | | - Gary W.K. Wong
- Department of Paediatrics, Prince of Wales Hospital, Chinese University of Hong Kong, Shatin, Hong Kong
| | | | - Holger J. Schünemann
- Department of Health Research Methods, Evidence & Impact, McMaster University, Hamilton, Ontario, Canada
- Department of Medicine, Division of Internal Medicine, McMaster University, Hamilton, Ontario, Canada
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Nguyen DTI, Sindher SB, Chinthrajah RS, Nadeau K, Davis CM. Shrimp-allergic patients in a multi-food oral immunotherapy trial. Pediatr Allergy Immunol 2022; 33:e13679. [PMID: 34655480 PMCID: PMC9297938 DOI: 10.1111/pai.13679] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 09/20/2021] [Accepted: 09/24/2021] [Indexed: 11/28/2022]
Affiliation(s)
- Diem-Tran I Nguyen
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
| | - Sayantani B Sindher
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University, Palo Alto, California, USA.,Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Stanford, California, USA
| | - R Sharon Chinthrajah
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University, Palo Alto, California, USA.,Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Stanford, California, USA
| | - Kari Nadeau
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University, Palo Alto, California, USA.,Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Stanford, California, USA
| | - Carla M Davis
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA.,Section of Immunology, Allergy and Retrovirology, Baylor College of Medicine and Texas Children's Hospital, Houston, Texas, USA
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38
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Akarsu A, Brindisi G, Fiocchi A, Zicari AM, Arasi S. Oral Immunotherapy in Food Allergy: A Critical Pediatric Perspective. Front Pediatr 2022; 10:842196. [PMID: 35273931 PMCID: PMC8901728 DOI: 10.3389/fped.2022.842196] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 01/17/2022] [Indexed: 11/29/2022] Open
Abstract
There is evidence that in children with persistent IgE-mediated food allergy (FA) to cow's milk, hen's egg, and peanut, oral allergen-specific immunotherapy (OIT) may increase the reaction threshold to the culprit food allergen(s). OIT may protect patients from the occurrence of severe reactions in case of accidental ingestion of the culprit food during treatment. Notwithstanding, many gaps are still unsolved, including safety issues, identification of predictive biomarkers, and post-desensitization efficacy. In this perspective, the use of omalizumab (Anti-IgE monoclonal antibody) has been proposed as an adjunctive treatment to OIT in order to reduce the risk of allergic reactions related to OIT. This review aims to summarize the current evidence and unmet needs on OIT in children with FA to enhance the development of longitudinal, prospective, and well-designed studies able to fill the current gaps soon.
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Affiliation(s)
- Aysegul Akarsu
- Division of Allergy and Asthma, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Giulia Brindisi
- Department of Maternal and Child Health and Urological Sciences, Sapienza University of Rome, Rome, Italy
| | - Alessandro Fiocchi
- Translational Research in Pediatric Specialities Area, Division of Allergy, Bambino Gesù Children's Hospital (IRCCS), Rome, Italy
| | - Anna Maria Zicari
- Department of Maternal and Child Health and Urological Sciences, Sapienza University of Rome, Rome, Italy
| | - Stefania Arasi
- Translational Research in Pediatric Specialities Area, Division of Allergy, Bambino Gesù Children's Hospital (IRCCS), Rome, Italy
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39
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Anderson B, Wong L, Adlou B, Long A, Chinthrajah RS. Oral Immunotherapy in Children: Clinical Considerations and Practical Management. J Asthma Allergy 2021; 14:1497-1510. [PMID: 34934327 PMCID: PMC8684389 DOI: 10.2147/jaa.s282696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Accepted: 11/09/2021] [Indexed: 01/21/2023] Open
Abstract
Oral immunotherapy (OIT) in pediatric patients provides an alternative option to the current standard of care in food allergy, which is allergen avoidance and reactive treatment. Because patients are exposed to one or more food allergens during treatment, OIT is associated with adverse events and can be a cumbersome process for children, their caregivers, and clinicians. However, there have been an overwhelming number of studies that show high efficacy in both single- and multi-allergen OIT, and that quality of life is greatly improved for both patients and their families after undergoing immunotherapy. This review discusses clinical considerations for OIT in pediatrics, including efficacy and safety, practical management, and future directions of treatment.
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Affiliation(s)
- Brent Anderson
- Sean N Parker Center for Allergy and Asthma Research at Stanford University, Stanford University, Stanford, CA, USA
| | - Lauren Wong
- Sean N Parker Center for Allergy and Asthma Research at Stanford University, Stanford University, Stanford, CA, USA
| | - Bahman Adlou
- Sean N Parker Center for Allergy and Asthma Research at Stanford University, Stanford University, Stanford, CA, USA
| | - Andrew Long
- Sean N Parker Center for Allergy and Asthma Research at Stanford University, Stanford University, Stanford, CA, USA
| | - R Sharon Chinthrajah
- Sean N Parker Center for Allergy and Asthma Research at Stanford University, Stanford University, Stanford, CA, USA
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Abstract
PURPOSE OF REVIEW To review the most relevant studies in the advancing field of omalizumab in allergen immunotherapy. RECENT FINDINGS Omalizumab has been used in combination with inhalant, venom, and food allergen immunotherapy. These studies suggest that omalizumab can decrease the time required to reach maintenance dosing and adverse events. However, severe adverse events do still occur. Limited long-term data suggests that there is a risk for increased reactivity after stopping omalizumab. SUMMARY Omalizumab in conjunction with immunotherapy has shown promising results for the treatment of allergic rhinitis, venom hypersensitivity, and food allergy, especially in the reduction of adverse events. Larger randomized, placebo-controlled trials are needed to better understand optimal dosing and duration, cost--benefit analysis, ideal patients, and long-term benefits. This combination therapy has the potential to improve treatment, particularly for high-risk patients.
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41
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Pulik K, Ruszczyński M, Krenke R. Oral immunotherapy in children with a food allergy-Where do we stand? - Review. Clin Exp Pharmacol Physiol 2021; 49:191-201. [PMID: 34716938 DOI: 10.1111/1440-1681.13607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 11/30/2022]
Abstract
The number of hospitalisations due to an anaphylactic reaction to food is continuously increasing. Therefore, there is an urgent need to seek effective therapy. Currently, the only way to treat food allergies is to avoid allergens and to administer intramuscular adrenaline if an accidental allergen intake occurs. The only causal therapeutic strategy is specific oral immunotherapy. An increasing amount of data confirms this therapy's effectiveness and safety, but the results remain inconclusive due to the lack of long-term follow-up. In this state-of-the-art review, we briefly summarise the latest placebo-controlled randomised controlled trials on oral immunotherapy (OIT) to treat food allergy. During the paper's review, we asked the following questions: does the therapy permanently increase the amount of allergen consumed without symptoms? Does it significantly increase or decrease the occurrence of severe systemic reactions - requiring the administration of adrenaline or hospitalisation? Many authors describe outcomes such as an increase in the amount of allergen that can be safely ingested; however, significant clinical benefits such as decreased hospitalisations or anaphylaxis incidence are rarely included in the results. To date, there is no unified protocol of therapy, which makes comparisons between studies difficult because of significant differences in types, doses, and routes of administration of the allergen, timeline for up-dosing and maintenance, duration of the therapy, and primary outcomes of OIT.
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Affiliation(s)
- Kaja Pulik
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Warsaw, Poland
| | - Marek Ruszczyński
- II Department of Pediatrics, Medical University of Warsaw, Warsaw, Poland
| | - Rafał Krenke
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Warsaw, Poland
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42
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Ramsey N, Berin MC. Pathogenesis of IgE-mediated food allergy and implications for future immunotherapeutics. Pediatr Allergy Immunol 2021; 32:1416-1425. [PMID: 33715245 PMCID: PMC9096874 DOI: 10.1111/pai.13501] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 01/29/2021] [Accepted: 02/22/2021] [Indexed: 12/13/2022]
Abstract
Our understanding of the immune basis of food allergy has grown rapidly in parallel with the development of new immune-targeted interventions for the treatment of food allergy. Local tissue factors, including the composition of skin and gastrointestinal microbiota and production of Th2-inducing cytokines (TSLP, IL-33, and IL-25) from barrier sites, have been shown not only to contribute to the development of food allergy, but also to act as effective targets for treatment in mice. Ongoing clinical trials are testing the targeting of these factors in human disease. There is a growing understanding of the contribution of IL-13 to the induction of high-affinity IgE and the need for continual T-cell help in the maintenance of long-lived IgE. This provides a strong rationale to test biologics targeting both IL-4 and IL-13 in the treatment of established food allergy. Various forms of allergen immunotherapy for food allergy have clearly shown that low specific IgE and elevated specific IgG4 are predictive of sustained treatment effect. Treatments that mimic that immune response, for example, lowering IgE, with monoclonal antibodies such as omalizumab, or administering allergen-specific IgG, are in various stages of investigation. As we gain more opportunities to use immune-modifying treatments for the treatment of food allergy, studies of the immune and clinical response to those interventions will continue to rapidly advance our understanding of the immune basis of food allergy and tolerance.
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Affiliation(s)
- Nicole Ramsey
- Jaffe Food Allergy Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - M Cecilia Berin
- Jaffe Food Allergy Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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43
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Guilleminault L, Michelet M, Reber LL. Combining Anti-IgE Monoclonal Antibodies and Oral Immunotherapy for the Treatment of Food Allergy. Clin Rev Allergy Immunol 2021; 62:216-231. [PMID: 34550555 DOI: 10.1007/s12016-021-08902-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/10/2021] [Indexed: 12/14/2022]
Abstract
Immunoglobulin E (IgE)-mediated food allergy is a real public health problem worldwide. The prevalence of food allergy is particularly high in children. Patients with food allergy experience high morbidity with a change in quality of life due to the risk of severe anaphylaxis. Current treatment options are poor. Allergen avoidance is widely recommended but exposes patients to accidental ingestion. Oral immunotherapy is also used in patients with food allergies to the most common allergens. Oral immunotherapy consists of a daily administration of small, gradually increasing amounts of allergens to induce desensitisation. This procedure aims at inducing immune tolerance to the ingested food allergens. However, some patients experience adverse reactions and discontinue oral immunotherapy.Given that IgE plays a crucial role in food allergy and anti-IgE are effective in allergic asthma, the use of anti-IgE therapeutic monoclonal antibodies (mAbs) such as omalizumab has been assessed in food allergy patients. The use of omalizumab as a monotherapy in food allergy has not been extensively studied but looks promising. There is more published evidence regarding the effect of omalizumab and oral immunotherapy in food allergy. Given the promising results of oral immunotherapy regarding sustained tolerance in clinical trials and the potential capacity of omalizumab to reduce symptoms in case of accidental exposure, a strategy combining oral immunotherapy with omalizumab pre-treatment has been suggested as a safer option in patients with severe food allergy compared to isolated therapy. Omalizumab seems useful in ensuring safer administration of oral immunotherapy with the oral immunotherapy maintenance dose being reached more rapidly. Quality-of-life improvement is greater with oral immunotherapy + omalizumab compared to oral immunotherapy alone. Moreover, sustained unresponsiveness is achieved more frequently with omalizumab. Considering that precision medicine and personalised therapy are major goals for allergic diseases, predictive biomarkers are crucial in order to identify food allergy patients more likely to benefit from anti-IgE therapies.
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Affiliation(s)
- Laurent Guilleminault
- Toulouse Institute for Infectious, Inflammatory Diseases (Infinity), Inserm U1291, University of Toulouse, C. H. U. Purpan, CNRS, U5282, Toulouse, France. .,Department of Respiratory Medicine and Allergic Diseases, Toulouse University Hospital Centre, Toulouse, France.
| | - Marine Michelet
- Toulouse Institute for Infectious, Inflammatory Diseases (Infinity), Inserm U1291, University of Toulouse, C. H. U. Purpan, CNRS, U5282, Toulouse, France.,Paediatric Pneumo-Allergology Department, Children's Hospital, Toulouse University Hospital Centre, 330 Avenue de Grande Bretagne, 31300, Toulouse, France
| | - Laurent Lionel Reber
- Toulouse Institute for Infectious, Inflammatory Diseases (Infinity), Inserm U1291, University of Toulouse, C. H. U. Purpan, CNRS, U5282, Toulouse, France
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Clinical Manifestations of Pediatric Food Allergy: a Contemporary Review. Clin Rev Allergy Immunol 2021; 62:180-199. [PMID: 34519995 DOI: 10.1007/s12016-021-08895-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/24/2021] [Indexed: 12/12/2022]
Abstract
Food allergies (FAs) are an emerging health care issue, and a "second wave of the allergy epidemic" was named. There are extensive data that documented the prevalence rate as high as approximately 10%. FAs are immunological adverse reactions, including IgE-mediated mechanisms, cell-mediated mechanisms, or mixed IgE- and cell-mediated mechanisms. A diagnosis of FA is made by specific symptoms encounter with food, detailed past history, sensitization tests, and oral food challenges (OFCs) if necessary. The component-resolved diagnostics (CRD) test can distinguish true or cross-reaction. "Minimal elimination" from the results of CRD and OFC could avoid unnecessary food restriction. Strict food limitation is harsh and stressful on patients and their families. Children with FAs experience a higher rate of post-traumatic stress symptoms (PTSS) and bullying than others. In the last 20 years, oral immunotherapy (OIT), sublingual immunotherapy (SLIT), and epicutaneous immunotherapy (EPIT) are treatment strategies. OIT and EPIT are the most two encouraging treatments for FA. This review aims to introduce FAs in diverse clinical disorders, new perspectives, and their practical implications in diagnosing and treating FA.
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Manohar M, Dunham D, Gupta S, Yan Z, Zhang W, Minnicozzi S, Kirkey M, Bunning B, Chowdhury RR, Galli SJ, Boyd SD, Kost LE, Chinthrajah RS, Desai M, Oettgen HC, Maecker HT, Yu W, DeKruyff RH, Andorf S, Nadeau KC. Immune changes beyond Th2 pathways during rapid multifood immunotherapy enabled with omalizumab. Allergy 2021; 76:2809-2826. [PMID: 33782956 PMCID: PMC8609920 DOI: 10.1111/all.14833] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 02/03/2021] [Accepted: 02/15/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND Multifood oral immunotherapy (mOIT) with adjunctive anti-IgE (omalizumab, XOLAIR® ) treatment affords safe, effective, and rapid desensitization to multiple foods, although the specific immune mechanisms mediating this desensitization remain to be fully elucidated. METHODS Participants in our phase 2 mOIT trial (NCT02643862) received omalizumab from baseline to week 16 and mOIT from week 8 to week 36. We compared the immune profile of PBMCs and plasma taken at baseline, week 8, and week 36 using high-dimensional mass cytometry, component-resolved diagnostics, the indirect basophil activation test, and Luminex. RESULTS We found (i) decreased frequency of IL-4+ peanut-reactive CD4+ T cells and a marked downregulation of GPR15 expression and CXCR3 frequency among γδ and CD8+ T-cell subsets at week 8 during the initial, omalizumab-alone induction phase; (ii) significant upregulation of the skin-homing receptor CCR4 in peanut-reactive CD4+ T and Th2 effector memory (EM) cells and of cutaneous lymphocyte-associated antigen (CLA) in peanut-reactive CD8+ T and CD8+ EM cells; (iii) downregulation of CD86 expression among antigen-presenting cell subsets; and (iv) reduction in pro-inflammatory cytokines, notably IL-17, at week 36 post-OIT. We also observed significant attenuation of the Th2 phenotype post-OIT, defined by downregulation of IL-4 peanut-reactive T cells and OX40 in Th2EM cells, increased allergen component-specific IgG4/IgE ratio, and decreased allergen-driven activation of indirectly sensitized basophils. CONCLUSIONS This exploratory study provides novel comprehensive insight into the immune underpinnings of desensitization through omalizumab-facilitated mOIT. Moreover, this study provides encouraging results to support the complex immune changes that can be induced by OIT.
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Affiliation(s)
- Monali Manohar
- Sean N. Parker Center for Allergy and Asthma Research, Stanford, CA
| | - Diane Dunham
- Sean N. Parker Center for Allergy and Asthma Research, Stanford, CA
| | - Sheena Gupta
- Human Immune Monitoring Center, Institute for Immunity, Transplantation, and Infection, Stanford University School of Medicine, Stanford, CA
| | - Zheng Yan
- Sean N. Parker Center for Allergy and Asthma Research, Stanford, CA
| | - Wenming Zhang
- Sean N. Parker Center for Allergy and Asthma Research, Stanford, CA
| | - Samantha Minnicozzi
- Division of Immunology, Department of Pediatrics, Boston Children’s Hospital, Boston, MA; Department of Pediatrics, Harvard Medical School, Boston, MA
| | - Matthew Kirkey
- Sean N. Parker Center for Allergy and Asthma Research, Stanford, CA
| | - Bryan Bunning
- Sean N. Parker Center for Allergy and Asthma Research, Stanford, CA
| | | | - Stephen J. Galli
- Sean N. Parker Center for Allergy and Asthma Research, Stanford, CA
- Department of Microbiology and Immunology, Stanford, CA
- Department of Pathology, Stanford University School of Medicine, Stanford, CA
| | - Scott D. Boyd
- Sean N. Parker Center for Allergy and Asthma Research, Stanford, CA
- Department of Pathology, Stanford University School of Medicine, Stanford, CA
| | | | | | - Manisha Desai
- Department of Biomedical and Data Science, Stanford University, Stanford, CA
| | - Hans C. Oettgen
- Division of Immunology, Department of Pediatrics, Boston Children’s Hospital, Boston, MA; Department of Pediatrics, Harvard Medical School, Boston, MA
| | - Holden T. Maecker
- Human Immune Monitoring Center, Institute for Immunity, Transplantation, and Infection, Stanford University School of Medicine, Stanford, CA
- Department of Microbiology and Immunology, Stanford, CA
| | - Wong Yu
- Sean N. Parker Center for Allergy and Asthma Research, Stanford, CA
| | | | - Sandra Andorf
- Sean N. Parker Center for Allergy and Asthma Research, Stanford, CA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, Divisions of Biomedical Informatics and Allergy & Immunology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
| | - Kari C. Nadeau
- Sean N. Parker Center for Allergy and Asthma Research, Stanford, CA
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Tontini C, Bulfone-Paus S. Novel Approaches in the Inhibition of IgE-Induced Mast Cell Reactivity in Food Allergy. Front Immunol 2021; 12:613461. [PMID: 34456900 PMCID: PMC8387944 DOI: 10.3389/fimmu.2021.613461] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 06/23/2021] [Indexed: 01/21/2023] Open
Abstract
Allergy is an IgE-dependent type-I hypersensitivity reaction that can lead to life-threatening systemic symptoms such as anaphylaxis. In the pathogenesis of the allergic response, the common upstream event is the binding of allergens to specific IgE, inducing cross-linking of the high-affinity FcεRI on mast cells, triggering cellular degranulation and the release of histamine, proteases, lipids mediators, cytokines and chemokines with inflammatory activity. A number of novel therapeutic options to curb mast cell activation are in the pipeline for the treatment of severe allergies. In addition to anti-IgE therapy and allergen-specific immunotherapy, monoclonal antibodies targeted against several key Th2/alarmin cytokines (i.e. IL-4Rα, IL-33, TSLP), active modification of allergen-specific IgE (i.e. inhibitory compounds, monoclonal antibodies, de-sialylation), engagement of inhibitory receptors on mast cells and allergen-specific adjuvant vaccines, are new promising options to inhibit the uncontrolled release of mast cell mediators upon allergen exposure. In this review, we critically discuss the novel approaches targeting mast cells limiting allergic responses and the immunological mechanisms involved, with special interest on food allergy treatment.
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Affiliation(s)
- Chiara Tontini
- Lydia Becker Institute for Immunology and Inflammation, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Silvia Bulfone-Paus
- Lydia Becker Institute for Immunology and Inflammation, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
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Management of Eosinophilic Esophagitis During Oral Immunotherapy. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2021; 9:3282-3287. [PMID: 34325036 DOI: 10.1016/j.jaip.2021.07.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/22/2021] [Accepted: 07/22/2021] [Indexed: 01/25/2023]
Abstract
Food allergies are antigen-driven diseases that can lead to IgE-mediated reactions of immediate hypersensitivity (eg, anaphylaxis triggered by a single food) or non-IgE reactions of delayed hypersensitivity such as eosinophilic esophagitis (eg, inability to eat multiple foods manifesting as abdominal pain, choking, dysphagia, vomiting, reflux, food impaction). Although both types of disease have their own unique set of challenges in diagnosis and management, it is a particularly vexing problem when a patient is afflicted by both conditions. This situation can happen when individuals with IgE-mediated food allergy undergo desensitization using currently available forms of oral immunotherapy. In this Grand Rounds Review, we review diagnostic approaches to oral immunotherapy-associated eosinophilic esophagitis, potential relationships between primary and secondary eosinophilic esophagitis, potential management approaches, areas of uncertainty, and upcoming research. Optimally supporting patients in their journey with food allergy requires shared decision making regarding alternative management strategies and the stimulation of robust research.
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Abstract
IgE-mediated food allergies affect both children and adults and are associated with dramatic decreases in the quality of life. In the majority of cases, food allergens have to be avoided which may be difficult, particularly in patients who suffer from life-threatening symptoms following the ingestion of minimal doses of food allergens. Several novel therapeutic approaches have been studied during the recent past and are summarized in this review. Therapies with novel therapeutic monoclonal antibodies, innovative allergen-specific immunotherapies using subcutaneous, sublingual, or epicutaneous routes, and oral immunotherapies leading to increases of individual thresholds of tolerable foods upon their continuous ingestion showed promising results which may change future management strategies in moderate to severe food allergy.
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Fiocchi A, Vickery BP, Wood RA. The use of biologics in food allergy. Clin Exp Allergy 2021; 51:1006-1018. [PMID: 33966304 DOI: 10.1111/cea.13897] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 04/29/2021] [Accepted: 04/30/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND Food allergy continues to pose problems due to its increased frequency and its increasingly high severity. In this context, alongside the traditional avoidance strategies of allergenic foods and desensitization through the cautious progression of exposure to foods in the context of oral immunotherapy (OIT), alternative strategies have made their way in the last decades. We review the possibilities of intervention in food allergy with the use of biological drugs capable of interfering with the synthesis of IgE, with their mechanisms of action, or with complex biological mechanisms that lead to the establishment of a food allergy. METHODS Repeated Entrez PubMed searches using the template algorithm "Food allergy" and "biologics" or "Omalizumab" or "Dupilumab" or "milk desensitization" or "oral tolerance induction" or "oral immunotherapy" or "Etokimab" or "Tezepelumab" or "Quilizumab" or "Ligelizumab" or "Tralokinumab" or "Nemolizumab" or "Mepolizumab" or "Reslizumab" or "Benralizumab". The authors' clinical experience in paediatric allergy units of University hospitals was also drawn upon. RESULTS The landscape in this context has changed dramatically over the past 10 years. We have acquired knowledge mainly on the effect of different types of anti-IgE treatments in poliallergic patients with food allergy, and in patients treated with OIT. However, other mediators are being targeted by specific biologic treatments. Among them, the alarmins Il-33 and TSLP, IL-4 and IL-13, eosinophil-related molecules as IL-6, IL-8, IL-10, IL-12, and mostly IL-5, and integrins involved in the pathogenesis of eosinophilic gastrointestinal diseases (EGIDs), as SIGLEC-8. CONCLUSIONS The ever-better knowledge of the mechanisms of food allergy allowing these developments will improve not only the perspective of patients with the most serious immediate food allergies such as anaphylaxis, but also those of patients with related diseases such as atopic dermatitis, eosinophilic esophagitis, and EGIDs. Biologics are also intended to complement OIT strategies that have developed over the years.
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Affiliation(s)
| | | | - Robert A Wood
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
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50
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Pfaar O, Creticos PS, Kleine-Tebbe J, Canonica GW, Palomares O, Schülke S. One Hundred Ten Years of Allergen Immunotherapy: A Broad Look Into the Future. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2021; 9:1791-1803. [PMID: 33966868 DOI: 10.1016/j.jaip.2020.12.067] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/14/2020] [Accepted: 12/18/2020] [Indexed: 12/15/2022]
Abstract
Allergen immunotherapy (AIT) is the only disease-modifying treatment option for patients with type 1-mediated allergic diseases such as allergic rhinitis/rhinoconjunctivitis with/without allergic asthma. Although many innovations have been developed since the first clinical report of Noon et al in 1911, the improvement of clinical efficacy and tolerability of this treatment is still an important unmet need. Hence, much progress has been made in the characterization of the cell types, cytokines, and intracellular signaling events involved in the development, maintenance, and regulation of allergic reactions, and also in the understanding of the mechanisms of tolerance induction in AIT. This comprehensive review aims to summarize the current innovative approaches in AIT, but also gives an outlook on promising candidates of the future. On the basis of an extensive literature review, integrating a clinical point of view, this article focuses on recent and future innovations regarding biologicals, allergen-derived peptides, recombinant allergens, "Toll"-like receptor agonists and other adjuvants, and novel application routes being developed for future AIT.
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Affiliation(s)
- Oliver Pfaar
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Marburg, Philipps-Universität Marburg, Marburg, Germany.
| | - Peter S Creticos
- Division of Allergy & Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, Md; Creticos Research Group, Crownsville, Md
| | - Jörg Kleine-Tebbe
- Allergy & Asthma Center Westend, Outpatient & Clinical Research Center, Hanf, Ackermann & Kleine-Tebbe, Berlin, Germany
| | - Giorgio Walter Canonica
- Personalized Medicine Asthma & Allergy Clinic, Humanitas University & Research Hospital-IRCCS, Milano, Italy
| | - Oscar Palomares
- Department of Biochemistry and Molecular Biology, School of Chemistry, Complutense University, Madrid, Spain
| | - Stefan Schülke
- Vice Presidents Research Group, Paul-Ehrlich-Institut, Langen, Germany
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