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Peters AT, Sagara H, Corren J, Domingo C, Altincatal A, Soler X, Pandit-Abid N, Crikelair N, Rowe PJ, Jacob-Nara JA, Deniz Y. Impact of dupilumab across seasons in patients with type 2, uncontrolled, moderate-to-severe asthma. Ann Allergy Asthma Immunol 2024; 132:477-484.e4. [PMID: 38013139 DOI: 10.1016/j.anai.2023.11.021] [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: 03/29/2023] [Revised: 11/15/2023] [Accepted: 11/15/2023] [Indexed: 11/29/2023]
Abstract
BACKGROUND Seasonal variability could influence asthma exacerbations. Dupilumab, a fully human monoclonal antibody, blocks the shared receptor component for interleukin (IL)-4/IL-13, key and central drivers of type 2 inflammation. In the 52-week QUEST study (NCT02414854), add-on dupilumab every 2 weeks vs placebo significantly reduced exacerbations and improved prebronchodilator forced expiratory volume in 1 second in patients with uncontrolled, moderate-to-severe asthma. TRAVERSE (NCT02134028), the open-label QUEST extension study, enrolled patients with moderate-to-severe asthma to investigate long-term safety and efficacy of dupilumab, including patients who previously received placebo that initiated dupilumab therapy. OBJECTIVE To investigate long-term dupilumab efficacy in reducing exacerbations across yearly seasons in patients with type 2 inflammatory asthma with and without clinical evidence of allergic asthma. METHODS Unadjusted annualized exacerbation rate and proportions of patients experiencing severe asthma exacerbations are reported by month and season and for both hemispheres. RESULTS The proportion of patients with type 2 asthma experiencing 1 or more severe asthma exacerbations during QUEST was 20.8% vs 10.0% in spring, 18.2% vs 7.3% in summer, 22.2% vs 12.6% in autumn, and 26.4% vs 12.0% in winter, for placebo- vs dupilumab-treated patients, respectively; P was less than .001 for placebo vs dupilumab in all seasons. Reductions in the proportion of patients experiencing severe exacerbations across seasons in subgroups with and without evidence of allergic asthma were similar to the overall type 2 population. Reductions in severe exacerbations observed during QUEST were sustained during TRAVERSE, up to 96 weeks across both hemispheres. CONCLUSION Dupilumab reduced asthma exacerbations, with no difference in the reduction between seasons, in patients with type 2 inflammation, with and without evidence of allergic asthma. TRIAL REGISTRATION ClinicalTrials.gov Identifiers: NCT02414854, NCT02134028.
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Affiliation(s)
- Anju T Peters
- Departments of Medicine and Otolaryngology Head & Neck Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois.
| | - Hironori Sagara
- Division of Respiratory Medicine and Allergology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Jonathan Corren
- David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Christian Domingo
- Pulmonary Service, Corporació Sanitària Parc Taulí, Sabadell, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | | | - Xavier Soler
- Regeneron Pharmaceuticals Inc., Tarrytown, New York
| | | | | | | | | | - Yamo Deniz
- Regeneron Pharmaceuticals Inc., Tarrytown, New York
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Domingo C, Monserrate DR, Sogo A, Mirapeix RM. The Incredible Adventure of Omalizumab. Int J Mol Sci 2024; 25:3056. [PMID: 38474304 DOI: 10.3390/ijms25053056] [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: 01/23/2024] [Revised: 02/18/2024] [Accepted: 02/29/2024] [Indexed: 03/14/2024] Open
Abstract
The basis of our current understanding of allergies begins with the discovery of IgE in the mid-1960s. The whole theory of the physiology and pathophysiology of allergic diseases, including rhinitis and asthma, dates from that period. Among the key regions of IgE identified were the FAB (fragment antigen binding) portion that has the ability to capture allergens, and the Cε3 domain, through which IgE binds to its membrane receptor. It was then postulated that blocking IgE at the level of the Cε3 domain would prevent it from binding to its receptor and thus set in motion the allergic cascade. This was the beginning of the development of omalizumab, a monoclonal antibody with an anti-IgE effect. In this article, we review the pathophysiology of allergic disease and trace the clinical development of omalizumab. We also review the benefits of omalizumab treatment that are apparently unrelated to allergies, such as its effect on immunity and bronchial remodeling.
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Affiliation(s)
- Christian Domingo
- Department of Pulmonary Medicine, Parc Taulí Hospital Universitari, Institut d'Investigació i Innovació Parc Taulí (I3PT-CERCA), Universitat Autònoma de Barcelona, 08202 Sabadell, Spain
| | - Daniel R Monserrate
- Department of Pulmonary Medicine, Parc Taulí Hospital Universitari, Institut d'Investigació i Innovació Parc Taulí (I3PT-CERCA), Universitat Autònoma de Barcelona, 08202 Sabadell, Spain
| | - Ana Sogo
- Department of Pulmonary Medicine, Parc Taulí Hospital Universitari, Institut d'Investigació i Innovació Parc Taulí (I3PT-CERCA), Universitat Autònoma de Barcelona, 08202 Sabadell, Spain
| | - Rosa M Mirapeix
- Unitat d'Anatomia, Departament de Ciències Morfològiques, Universitat Autònoma de Barcelona (UAB), 08193 Cerdanyola, Spain
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Fraser A, Simpson R, Turner S. Use of exhaled nitric oxide in the diagnosis and monitoring of childhood asthma: myth or maxim? Breathe (Sheff) 2023; 19:220236. [PMID: 38125803 PMCID: PMC10729813 DOI: 10.1183/20734735.0236-2022] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 09/14/2023] [Indexed: 12/23/2023] Open
Abstract
Asthma is a common condition in children. This review describes the evidence from the literature and international asthma guidelines for using fractional exhaled nitric oxide (FENO) in the diagnosis and monitoring of childhood asthma. The accuracy of FENO measuring devices could be further improved, the difference in FENO results between devices are equivalent to what is considered a clinically important difference. For diagnosing asthma no guideline currently recommends FENO is used as the first test, but many recommend FENO as part of a series of tests. A cut-off of 35 ppb is widely recommended as being supportive of an asthma diagnosis, but evidence from children at risk of asthma suggests that a lower threshold of 25 ppb may be more appropriate. Nine randomised clinical trials including 1885 children have added FENO to usual asthma care and find that exacerbations are reduced when care is guided by FENO (OR for exacerbation compared to usual care 0.77, 95% CI 0.62-0.94). What is not clear is what cut-off(s) of FENO should be used to trigger a change in treatment. After 30 years of intensive research there is not sufficient evidence to recommend FENO for routine diagnosing and monitoring asthma in children. Educational aims To give the reader an overview of literature that supports and does not support the role of FENO in diagnosing asthma in children.To give the reader an overview of literature that supports and does not support the role of FENO in monitoring asthma in children.To give the reader an understanding of the role of FENO in international guidelines for diagnosing and monitoring asthma in children.
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Affiliation(s)
- Anna Fraser
- Child Health, Women and Children's Division, NHS Grampian, Aberdeen, UK
- Joint first authors
| | - Ruaraidh Simpson
- Child Health, Women and Children's Division, NHS Grampian, Aberdeen, UK
- Joint first authors
| | - Steve Turner
- Child Health, Women and Children's Division, NHS Grampian, Aberdeen, UK
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Nieto A, El-Sayed ZA, Gómez RM, Hossny E, Jiu-Yao W, Kalayci Ö, Morais-Almeida M, Phipatanakul W, Pitrez PM, Pozo Beltrán CF, Xepapadaki P, Papadopoulos NG. Unanswered questions on the use of biologics in pediatric asthma. World Allergy Organ J 2023; 16:100837. [PMID: 38020283 PMCID: PMC10656246 DOI: 10.1016/j.waojou.2023.100837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 10/13/2023] [Accepted: 10/17/2023] [Indexed: 12/01/2023] Open
Abstract
The emergence of biologic therapies for the management of asthma has been a revolutionary change in our capacity to manage this disease. Since the launch of omalizumab, several other biologics have been marketed or are close to being marketed, suggesting that a plethora of monoclonal antibodies can be expected in the coming years. This will facilitate the transition to the paradigm of personalized medicine, but on the other hand will decisively further complicate the choice of the most appropriate treatment, in the absence of reliable enough biological markers. For these reasons, along with the relatively short time of use with these treatments, there are recurrently arising questions for which there are not even moderately documented answers, and for which the only solution must be based, with all reservations, on the combination of indirect evidence and expertise. In this paper, we attempt to address such questions, providing relevant commentaries and considering the whole width of the evidence base.
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Affiliation(s)
- Antonio Nieto
- Pediatric Pulmonology & Allergy Unit. Health Research Institute. Children's Hospital La Fe, Valencia, Spain
| | - Zeinab A. El-Sayed
- Pediatric Allergy, Immunology and Rheumatology Unit, Children's Hospital, Ain Shams University, Cairo, Egypt
| | | | - Elham Hossny
- Pediatric Allergy, Immunology and Rheumatology Unit, Children's Hospital, Ain Shams University, Cairo, Egypt
| | - Wang Jiu-Yao
- Research Center of Allergy, Immunology, and Microbiome (A.I.M.). China Medical University Children's Hospital, Taichung, Taiwan
| | - Ömer Kalayci
- Pediatric Allergy and Asthma, Hacettepe University, School of Medicine, Ankara, Turkey
| | - Mário Morais-Almeida
- Allergy Center, CUF Descobertas Hospital, CUF Academic and Research Medical Center, Lisbon, Portugal
| | - Wanda Phipatanakul
- Pediatric Allergy and Immunology, Boston Children's Hospital, Boston, MA, USA
| | - Paulo Marcio Pitrez
- School of Medicine, Pediatric Pulmonary Division, Hospital Moinhos de Vento, Porto Alegre, Brazil
| | | | | | - Nikolaos G. Papadopoulos
- Allergy Department, 2nd Pediatric Clinic, University of Athens, Athens, Greece
- Division of Infection, Inflammation & Respiratory Medicine, The University of Manchester, Manchester, UK
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What Have Mechanistic Studies Taught Us About Childhood Asthma? THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2023; 11:684-692. [PMID: 36649800 DOI: 10.1016/j.jaip.2023.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 01/09/2023] [Accepted: 01/10/2023] [Indexed: 01/15/2023]
Abstract
Childhood asthma is a chronic heterogeneous syndrome consisting of different disease entities or phenotypes. The immunologic and cellular processes that occur during asthma development are still not fully understood but represent distinct endotypes. Mechanistic studies have examined the role of gene expression, protein levels, and cell types in early life development and the manifestation of asthma, many under the influence of environmental stimuli, which can be both protective and risk factors for asthma. Genetic variants can regulate gene expression, controlled partly by different epigenetic mechanisms. In addition, environmental factors, such as living space, nutrition, and smoking, can contribute to these mechanisms. All of these factors produce modifications in gene expression that can alter the development and function of immune and epithelial cells and subsequently different trajectories of childhood asthma. These early changes in a partially immature immune system can have dramatic effects (e.g., causing dysregulation), which in turn contribute to different disease endotypes and may help to explain differential responsiveness to asthma treatment. In this review, we summarize published studies that have aimed to uncover distinct mechanisms in childhood asthma, considering genetics, epigenetics, and environment. Moreover, a discussion of new, powerful tools for single-cell immunologic assays for phenotypic and functional analysis is included, which promise new mechanistic insights into childhood asthma development and therapeutic and preventive strategies.
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Adatia A, Vliagoftis H. Challenges in severe asthma: Do we need new drugs or new biomarkers? Front Med (Lausanne) 2022; 9:921967. [PMID: 36237537 PMCID: PMC9550875 DOI: 10.3389/fmed.2022.921967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 09/12/2022] [Indexed: 11/13/2022] Open
Abstract
Severe asthma is a complex, heterogenous airway condition. There have been significant advances in severe asthma management in the past decade using monoclonal antibody therapies that target the inflammatory component of the disease. Patient selection has been paramount for the success of these biologicals, leading to significant interest in biomarkers to guide treatment. Some severe asthmatics remain suboptimally controlled despite trials of biologicals and many of these patients still require chronic systemic corticosteroids. New therapeutics are currently in development to address this unmet need. However, whether these patients could be better treated by using novel biomarkers that inform selection among currently available biologics, and that objectively measure disease control is unclear. In this review, we examine the currently used biomarkers that guide severe asthma management and emerging biomarkers that may improve asthma therapy in the future.
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Affiliation(s)
- Adil Adatia
- Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - Harissios Vliagoftis
- Department of Medicine, University of Alberta, Edmonton, AB, Canada
- Alberta Respiratory Centre, University of Alberta, Edmonton, AB, Canada
- *Correspondence: Harissios Vliagoftis
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Li Y, Li X, Zhang B, Yu Q, Lu Y. Predictive biomarkers for response to omalizumab in patients with severe allergic asthma: a meta-analysis. Expert Rev Respir Med 2022; 16:1023-1033. [PMID: 35730466 DOI: 10.1080/17476348.2022.2092100] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Predicting omalizumab treatment response has been a challenge and significant aspect for selecting suitable severe allergic asthma patients for omalizumab use. OBJECTIVE To determine which domains of pretreatment baseline characteristics predict omalizumab treatment response among asthmatic patients. METHODS Electronic bases were searched for eligible studies that reported potential biomarkers that could predict omalizumab responsiveness and efficacy. Patients who accepted omalizumab treatment were stratified into responders and non-responders. WMD, OR, and their 95%CI were used to access the differences between those omalizumab receivers. Sensitivity analysis and subgroup analysis were conducted for potential heterogeneity. RESULTS A total of 41 studies evaluating efficacy predictors of omalizumab were included in this meta-analysis. The pooled results showed that omalizumab responders had significantly younger age in the adult subgroup, higher pretreatment total serum IgE level, percent predicted FEV1 and FeNO than that non-responder. We further confirmed that higher blood eosinophil counts and total serum IgE levels are useful markers for selecting asthma patients who may benefit more from omalizumab. CONCLUSIONS Pre-treatment blood eosinophil counts and total serum IgE level can be a useful efficacy predictor in selecting allergic asthma patients for omalizumab treatment.
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Affiliation(s)
- Yaqin Li
- Department of Pediatric, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaoyan Li
- Department of Pediatric, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Biyu Zhang
- Department of Pediatric, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qing Yu
- Department of Pediatric, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yanming Lu
- Department of Pediatric, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Yu L, Zhang H, Pan J, Ye L. Pediatric usage of Omalizumab: A promising one. World Allergy Organ J 2021; 14:100614. [PMID: 34963793 PMCID: PMC8672045 DOI: 10.1016/j.waojou.2021.100614] [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: 07/26/2021] [Revised: 10/09/2021] [Accepted: 11/04/2021] [Indexed: 01/04/2023] Open
Abstract
Allergic and related diseases have a substantial epidemiological impact on the pediatric population. Small molecule-based medicines have been traditionally used to manage the diseases. Omalizumab is the first monoclonal antibody-based medicine used in children's allergy and shows great promises. It binds to free IgE and prevents it from binding to IgE receptors, thus interrupting the IgE-dependent allergic inflammatory cascade. Vast amounts of data demonstrate its effectiveness and well tolerance by patients, including the children. However, the drug was only approved to use in allergic asthma and chronic spontaneous urticaria (CSU), though other applications were explored in clinical trials. In this review, we summarized current pediatric applications of omalizumab in allergic diseases, focusing on its usages beyond asthma and CSU, including allergic rhinitis, allergic bronchopulmonary aspergillosis, vernal keratoconjunctivitis, food allergy and atopic dermatitis. In addition, we highlighted the unmet needs and controversial issues of anti-IgE therapy. Omalizumab, the first monoclonal antibody-based medicine used in children's allergy, shows great promise. Omalizumab is effective in relieving symptoms associated with almost every children's allergic and related diseases beyond asthma and CSU. There are unmet needs and controversial issues of anti-IgE therapy in allergic and related diseases.
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Affiliation(s)
- Lin Yu
- Department of Pediatrics, The Fourth Affiliated Hospital of Zhejiang University School of Medicine, Yiwu, Zhejiang, China
| | - Huishan Zhang
- Department of Pediatrics, Peking University First Hospital, Beijing, China.,Department of Pediatrics, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jianwei Pan
- Department of Pediatrics, The Fourth Affiliated Hospital of Zhejiang University School of Medicine, Yiwu, Zhejiang, China
| | - Leping Ye
- Department of Pediatrics, Peking University First Hospital, Beijing, China
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Clinical Experience with Anti-IgE Monoclonal Antibody (Omalizumab) in Pediatric Severe Allergic Asthma-A Romanian Perspective. CHILDREN (BASEL, SWITZERLAND) 2021; 8:children8121141. [PMID: 34943337 PMCID: PMC8700741 DOI: 10.3390/children8121141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 12/01/2021] [Accepted: 12/01/2021] [Indexed: 11/21/2022]
Abstract
Background: Asthma is the most common chronic disease affecting children, with a negative impact on their quality of life. Asthma is often associated with comorbid allergic diseases, and its severity may be modulated by immunoglobulin E (IgE)-mediated allergen sensitization. Omalizumab is a humanized monoclonal anti-IgE antibody, the first biological therapy approved to treat patients aged ≥6 years with severe allergic asthma. The primary objective of our study was to investigate the efficacy and safety of Omalizumab in Romanian children with severe allergic asthma. Methods: In this observational real-life study, 12 children and adolescents aged 6 to 18 years (mean 12.4 years) with severe allergic asthma received Omalizumab as an add-on treatment. Asthma control, exacerbations, lung function, and adverse events were evaluated at baseline and after the first year of treatment. Results: We observed general improvement in total asthma symptom scores and reduction in the rate of exacerbation of severe asthma. Omalizumab treatment was associated with improvement in the measures of lung function, and no serious adverse reactions were reported. FEV1 improved significantly after one year of treatment with Omalizumab [ΔFEV1 (% pred.) = 18.3], and [similarly, ΔMEF50 (%) = 25.8]. The mean severe exacerbation rate of asthma decreased from 4.1 ± 2.8 to 1.15 ± 0.78 (p < 0.0001) during the year of treatment with Omalizumab. Conclusions: This study showed that Omalizumab can be an effective and safe therapeutic option for Romanian children and adolescents with severe allergic asthma, providing clinically relevant information on asthma control and exacerbation rate in children and adolescents. The results demonstrated the positive effect of Omalizumab in young patients with asthma, starting from the first year of treatment.
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Cheng L, Yang T, Ma X, Han Y, Wang Y. Effectiveness and Safety Studies of Omalizumab in Children and Adolescents With Moderate-To-Severe Asthma. J Pharm Pract 2021; 36:370-382. [PMID: 34384308 DOI: 10.1177/08971900211038251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Omalizumab is currently approved for the treatment of moderate-to-severe allergic asthma in patients 6 years and older. OBJECTIVE To assess the effectiveness and safety of subcutaneous omalizumab as an add-on therapy option for moderate-severe allergic asthma in patients aged 6-20 years old. METHODS The studies published from July, 1970 to May, 2021 were searched from the electronic databases which followed keywords: ("anti-IgE" OR "anti-immunoglobulin E" OR "anti-IgE antibody" OR "omalizumab" OR "rhuMAb-E25" OR "Xolair") AND "asthma" AND ("child" OR "children" OR "adolescents" OR "youth" OR "teenager" OR "kids" OR "pediatric"). Thirteen studies were pooled to determine the effectiveness and safety of omalizumab. Efficacy endpoints were evaluated using a fixed-effects model or a random-effects model depending on heterogeneity. Safety endpoints were evaluated by odds ratio. RESULTS Thirteen studies were included. In this meta-analysis, our results showed that fractional exhaled nitric oxide and asthma control test scores were significantly improved with omalizumab treatment. Serum immunoglobulin E was also decreased in children with moderate-to-severe asthma after treatment with omalizumab. The analysis found that there was no significant difference between pre-and post-treatment in forced expiratory volume in one second/ forced vital capacity ratio, forced expiratory flow between 25 and 75% of vital capacity, or FEV1. Overall, more adverse events occurred with omalizumab compared to placebo. However, the degree was mild to moderate. CONCLUSION This meta-analysis indicates that omalizumab is safe and effective to treat children and adolescents with moderate-to-severe asthma.
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Affiliation(s)
- Lu Cheng
- Department of Respiratory Medicine, Jinan Children's Hospital, Jinan, China
| | - Tianrui Yang
- Ben and Maytee Fisch College of Pharmacy, 23534University of Texas at Tyler, Tyler, TX, USA
| | - Xiang Ma
- Department of Respiratory Medicine, Jinan Children's Hospital, Jinan, China
| | - Yuling Han
- Department of Respiratory Medicine, Jinan Children's Hospital, Jinan, China
| | - Yongtai Wang
- College of Nursing and Health Sciences, 12347University of Texas at Tyler, Tyler, TX, USA
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Di Cicco M, Peroni DG, Ragazzo V, Comberiati P. Application of exhaled nitric oxide (FeNO) in pediatric asthma. Curr Opin Allergy Clin Immunol 2021; 21:151-158. [PMID: 33620882 DOI: 10.1097/aci.0000000000000726] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
PURPOSE OF REVIEW Fractional concentration of Nitric Oxide in the exhaled air (FeNO) is a moderately good biomarker of type-2 airway inflammation, and its measurement is feasible also in children. The available evidence is still not enough to support the routine use of FeNO to diagnose or manage asthma in every patient in clinical practice. However, its role in identifying asthma with eosinophilic inflammation is of particular interest in the management of severe asthma. RECENT FINDINGS In healthy subjects, FeNO levels increase with age and height, particularly in males, and are also influenced by ethnicity. FeNO measurement can support asthma diagnosis and help in predicting asthma development later in life in young children with recurrent wheezing. FeNO-guided asthma management is effective in reducing asthma exacerbations but may result in a higher daily dose of inhaled corticosteroids. FeNO can also be used as a marker to evaluate adherence to asthma treatment and predict response to different biologicals, especially Omalizumab and Dupilumab. SUMMARY This review outlines recent data on the application of FeNO in childhood-onset asthma diagnosis and management, as well as in phenotyping subjects with severe asthma who may benefit from monoclonal antibodies administration.
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Affiliation(s)
- Maria Di Cicco
- Pediatrics Unit, Pisa University Hospital
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa
| | - Diego Giampietro Peroni
- Pediatrics Unit, Pisa University Hospital
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa
| | - Vincenzo Ragazzo
- Pediatrics and Neonatology Division, Women's and Children's Health Department, Versilia Hospital, Lido di Camaiore, Italy
| | - Pasquale Comberiati
- Pediatrics Unit, Pisa University Hospital
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa
- Department of Clinical Immunology and Allergology, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
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Navanandan N, Szefler SJ. Personalized asthma management in pediatric patients based on treatment response. EXPERT REVIEW OF PRECISION MEDICINE AND DRUG DEVELOPMENT 2020. [DOI: 10.1080/23808993.2020.1834843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Nidhya Navanandan
- Pediatric Emergency Medicine, Children’s Hospital Colorado, University of Colorado School of Medicine, Aurora, CO, USA
| | - Stanley J. Szefler
- Pediatric Pulmonary and Sleep Medicine, Children’s Hospital Colorado, Breathing Institute, University of Colorado School of Medicine, Aurora, CO, USA
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Fainardi V, Saglani S. An approach to the management of children with problematic severe asthma. ACTA BIO-MEDICA : ATENEI PARMENSIS 2020; 91:e2020055. [PMID: 32921752 PMCID: PMC7717010 DOI: 10.23750/abm.v91i3.9603] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 04/24/2020] [Indexed: 12/18/2022]
Abstract
Children with poor asthma control despite high levels of prescribed treatment are described as having problematic severe asthma. Most of these children have steroid sensitive disease which improves with adherence to daily inhaled corticosteroids and after having removed modifiable factors like poor inhalation technique, persistent adverse environmental exposures and psychosocial factors. These children are described as having “difficult-to-treat asthma” while children with persistent symptoms despite above-mentioned factors having been addressed are described as having “severe therapy-resistant asthma”. In this review, we will describe the 6-step approach to the diagnosis and management of a child with problematic severe asthma adopted by The Royal Brompton Hospital (London, UK). The role of a multidisciplinary team is crucial for identification and treatment of modifiable factors and comorbidities in order to avoid invasive examinations and useless pharmacological treatments. The current knowledge on add-on therapies will be discussed.
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Affiliation(s)
| | - Sejal Saglani
- Department of Respiratory Paediatrics, Royal Brompton and Harefield NHS Foundation Trust, London, UK..
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