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Riccò M, Parisi S, Corrado S, Marchesi F, Bottazzoli M, Gori D. Respiratory Syncytial Virus Infections in Recipients of Bone Marrow Transplants: A Systematic Review and Meta-Analysis. Infect Dis Rep 2024; 16:317-355. [PMID: 38667752 PMCID: PMC11050314 DOI: 10.3390/idr16020026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 03/18/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024] Open
Abstract
Human Respiratory Syncytial Virus (RSV) is a common cause of respiratory tract infections. Usually associated with infants and children, an increasing amount of evidence suggests that RSV can cause substantial morbidity and mortality in immunocompromised individuals, including recipients of bone marrow transplantation (BMT). The present systematic review was therefore designed in accordance with the PRISMA guidelines to collect available evidence about RSV infections in BMT recipients. Three medical databases (PubMed, Embase, and MedRxiv) were therefore searched for eligible observational studies published up to 30 September 2023 and collected cases were pooled in a random-effects model. Heterogeneity was assessed using I2 statistics. Reporting bias was assessed by means of funnel plots and regression analysis. Overall, 30 studies were retrieved, including 20,067 BMT cases and 821 RSV infection episodes. Of them, 351 were lower respiratory tract infections, and a total of 78 RSV-related deaths were collected. A pooled attack rate of 5.40% (95% confidence interval [95%CI] 3.81 to 7.60) was identified, with a corresponding incidence rate of 14.77 cases per 1000 person-years (95%CI 9.43 to 20.11), and a case fatality ratio (CFR) of 7.28% (95%CI 4.94 to 10.60). Attack rates were higher in adults (8.49%, 95%CI 5.16 to 13.67) than in children (4.79%, 95%CI 3.05 to 7.45), with similar CFR (5.99%, 95%CI 2.31 to 14.63 vs. 5.85%, 95%CI 3.35 to 10.02). By assuming RSV attack rates as a reference group, influenza (RR 0.518; 95%CI 0.446 to 0.601), adenovirus (RR 0.679, 95%CI 0.553 to 0.830), and human metapneumovirus (RR 0.536, 95%CI 0.438 to 0.655) were associated with a substantially reduced risk for developing corresponding respiratory infection. Despite the heterogeneous settings and the uneven proportion of adult and pediatric cases, our study has identified high attack rates and a substantial CFR of RSV in recipients of BMT, stressing the importance of specifically tailored preventive strategies and the need for effective treatment options.
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Affiliation(s)
- Matteo Riccò
- AUSL–IRCCS di Reggio Emilia, Servizio di Prevenzione e Sicurezza Negli Ambienti di Lavoro (SPSAL), Local Health Unit of Reggio Emilia, 42122 Reggio Emilia, Italy
| | | | - Silvia Corrado
- ASST Rhodense, Dipartimento della donna e Area Materno-Infantile, UOC Pediatria, 20024 Milan, Italy;
| | - Federico Marchesi
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
| | - Marco Bottazzoli
- Department of Otorhinolaryngology, APSS Trento, 38122 Trento, Italy
| | - Davide Gori
- Department of Biomedical and Neuromotor Sciences, University of Bologna, 40126 Bologna, Italy
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El Chaer F, Kaul DR, Englund JA, Boeckh M, Batista MV, Seo SK, Carpenter PA, Navarro D, Hirsch HH, Ison MG, Papanicolaou GA, Chemaly RF. American Society of Transplantation and Cellular Therapy Series: #7 - Management of Respiratory Syncytial Virus Infections in Hematopoietic Cell Transplant Recipients. Transplant Cell Ther 2023; 29:730-738. [PMID: 37783338 DOI: 10.1016/j.jtct.2023.09.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 09/26/2023] [Indexed: 10/04/2023]
Abstract
The Practice Guidelines Committee of the American Society of Transplantation and Cellular Therapy (ASTCT) partnered with its Transplant Infectious Disease Special Interest Group (TID-SIG) to update the 2009 compendium-style infectious disease guidelines for hematopoietic cell transplantation (HCT). A new approach was adopted to better serve clinical providers by publishing each standalone topic in the infectious disease series in a concise format of frequently asked questions (FAQ), tables, and figures. Experts in HCT and infectious diseases identified FAQs and then provided answers based on the strength of the recommendation and the level of supporting evidence. In the seventh guideline in the series, we focus on the respiratory syncytial virus (RSV) with FAQs addressing epidemiology, clinical diagnosis, prophylaxis, and treatment. Special consideration was given to RSV in pediatric, cord blood, haploidentical, and T cell-depleted HCT and chimeric antigen receptor T cell therapy recipients, as well as to identify future research directions.
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Affiliation(s)
- Firas El Chaer
- Department of Medicine, Division of Hematology and Oncology, University of Virginia, Charlottesville, Virginia.
| | - Daniel R Kaul
- Division of Infectious Disease, University of Michigan Medical School, Ann Arbor, Michigan
| | - Janet A Englund
- Department of Pediatrics, University of Washington, Seattle Children's Research Institute, Seattle, Washington
| | - Michael Boeckh
- Clinical Research and Vaccine and Infectious Disease Divisions, Fred Hutchinson Cancer Center and Division of Allergy and Infectious Diseases, Department of Medicine, University of Washington, Seattle, Washington
| | - Marjorie V Batista
- Department of Infectious Diseases, AC Camargo Cancer Center, Sao Paulo, Brazil
| | - Susan K Seo
- Infectious Diseases Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York
| | - Paul A Carpenter
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - David Navarro
- Microbiology Service, Hospital Clínico Universitario, INCLIVA Research Institute, Valencia, and Department of Microbiology, School of Medicine, University of Valencia, Valencia & Centro de Investigación Biomédica en Red de Enfermedades Infecciosas, Instituto de Salud Carlos III, Madrid, Spain
| | - Hans H Hirsch
- Clinical Virology Laboratory, Laboratory Medicine, University Hospital Basel, Basel, Switzerland; Infectious Diseases & Hospital Epidemiology, University Hospital Basel, Basel, Switzerland; Transplantation & Clinical Virology, Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Michael G Ison
- Respiratory Disease Branch, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland
| | - Genovefa A Papanicolaou
- Infectious Diseases Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York
| | - Roy F Chemaly
- Department of Infectious Diseases, Infection Control, and Employee Health, The University of Texas MD Anderson Cancer Center, Houston, Texas
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Bindernagel C, Sotoudeh S, Nguyen M, Wetzstein G, Sriaroon P, Walter J. Case Report: ASCENIV use in three young children with immune abnormalities and acute respiratory failure secondary to RSV infection. Front Immunol 2023; 14:1154448. [PMID: 37781369 PMCID: PMC10539909 DOI: 10.3389/fimmu.2023.1154448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 08/14/2023] [Indexed: 10/03/2023] Open
Abstract
Respiratory syncytial virus (RSV) is the most common etiology of bronchiolitis in young children. While most children clinically improve with care at home, RSV is the leading cause of hospitalization among infants aged 12 months or less. Common modalities of treatment for children with immune dysregulation include respiratory support and best supportive care, which may include immunoglobulin therapy. All immunoglobulin therapies adhere to Food and Drug Administration (FDA) - established standards for antibodies against measles, polio, and diphtheria, but there are no required standards for problematic respiratory viral pathogens, including RSV and others. ASCENIV is an approved IVIG that is manufactured from blending normal source plasma with plasma from donors that possess high antibody titers against RSV and other respiratory pathogens of concern. ASCENIV was developed, in part, to the unmet need that exists in immunocompromised patients who lack sufficient antibodies against problematic viral pathogens. ASCENIV is not a currently approved treatment for severe RSV and other viral infections. There is a lack of research regarding its potential benefits in the acute treatment period for RSV and in the pediatric population. Therefore, this case series was developed to describe real-world experiences of ASCENIV use in this less well studied clinical scenario. This case series reviews three pediatric patients ≤ 5 years of age with immune dysregulation and who were severely ill with RSV. Despite receiving best supportive care, and standard immunoglobulin therapy for some, the patients' clinical status continued to decline. All patients received ASCENIV in an intensive care setting. Each patient had ultimately recovered due to the various medical interventions done. This case series demonstrated that ASCENIV (500mg/kg) administration may have contributed to the treatment outcomes of a less well studied age-cohort of patients. In addition, no adverse side effects were observed after ASCENIV administration. Further analysis of the benefits of ASCENIV for the acute and preventative treatment in patients younger than 12 years of age with immune dysregulation should continue to be explored.
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Affiliation(s)
- Constance Bindernagel
- Department of Pediatrics, Division of Allergy and Immunology, University of South Florida Morsani College of Medicine, Tampa, FL, United States
- Department of Allergy and Immunology, Johns Hopkins All Children’s Hospital, Saint Petersburg, FL, United States
| | - Shannon Sotoudeh
- Department of Pediatrics, Division of Allergy and Immunology, University of South Florida Morsani College of Medicine, Tampa, FL, United States
- Department of Allergy and Immunology, Johns Hopkins All Children’s Hospital, Saint Petersburg, FL, United States
| | - Minh Nguyen
- Department of Pediatrics, Division of Allergy and Immunology, University of South Florida Morsani College of Medicine, Tampa, FL, United States
- Department of Allergy and Immunology, Johns Hopkins All Children’s Hospital, Saint Petersburg, FL, United States
| | - Gene Wetzstein
- ADMA Biologics (United States), Ramsey, NJ, United States
| | - Panida Sriaroon
- Department of Pediatrics, Division of Allergy and Immunology, University of South Florida Morsani College of Medicine, Tampa, FL, United States
- Department of Allergy and Immunology, Johns Hopkins All Children’s Hospital, Saint Petersburg, FL, United States
| | - Jolan Walter
- Department of Pediatrics, Division of Allergy and Immunology, University of South Florida Morsani College of Medicine, Tampa, FL, United States
- Department of Allergy and Immunology, Johns Hopkins All Children’s Hospital, Saint Petersburg, FL, United States
- ADMA Biologics (United States), Ramsey, NJ, United States
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Ramirez KA, Mond J, Papenburg J, Boivin G, Gilbert BE, Falsey AR, Bagga B, DeVincenzo JP. In-vivo and human evidence for potential efficacy of therapeutic polyclonal RSV neutralizing antibodies for palivizumab-resistant RSV infections. Virology 2023; 586:115-121. [PMID: 37542818 DOI: 10.1016/j.virol.2023.07.007] [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: 01/30/2023] [Revised: 07/03/2023] [Accepted: 07/11/2023] [Indexed: 08/07/2023]
Abstract
BACKGROUND Monoclonal antibody (palivizumab), intravenous immune globulin (IGIV), or respiratory syncytial virus (RSV)-polyclonal-hyperimmune-globulin (RSV-IG as Respigam®, RI-001, RI-002) are used with ribavirin in RSV-infected immunocompromised patients, with debated efficacy. Palivizumab-resistance (PR) can arise during treatment of persistent infections in this population. RSV-IG may confer benefit in PR-RSV infection. METHODS RSV-IG [RI-001] was provided for an immunocompromised infant with RSV-pneumonitis refractory to ribavirin and palivizumab. RSV-neutralizing antibody, respiratory RSV load (qPCR), and F-gene-sequence-detection of PR was determined. Prophylactic RSV-IG [RI-002] or palivizumab was administered in a cotton-rat model infected with wild-type and PR-RSV. Lung RSV load and neutralizing antibody were measured. RESULTS As protective RI-001-neutralizing antibody titers waned in the infant, a subpopulation of PR-escape mutants were detected with a fatal RSV-burden in the lungs. In PR-RSV-infected cotton rats, prophylactic RI-002 reduced RSV-load in the lungs (2.45 vs 0.28 log10 PFU/g lung-tissue reduction, respectively, p < 0.05) and provided protective RSV-neutralizing antibody. CONCLUSIONS RSV-IG and ribavirin use in immunocompromised patients requires further study.
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Affiliation(s)
- Kacy A Ramirez
- LeBonheur Children's Hospital, Memphis, TN, United States; Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN, United States; St Jude Children's Research Hospital, Memphis, TN, United States.
| | - James Mond
- ADMA Biologics, Boca Raton FL, United States
| | - Jesse Papenburg
- McGill University Health Centre and Montreal Children's Hospital, Montreal, Quebec, Canada
| | - Guy Boivin
- Research Center in Infectious Diseases and Centre Hospitalier Universitaire (CHU) of Quebec and Laval University, Quebec City, Quebec, Canada
| | | | - Ann R Falsey
- University of Rochester School of Medicine, Rochester, NY, United States
| | - Bindiya Bagga
- LeBonheur Children's Hospital, Memphis, TN, United States; Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN, United States
| | - John P DeVincenzo
- LeBonheur Children's Hospital, Memphis, TN, United States; Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN, United States; Department of Microbiology, Immunology, and Biochemistry, University of Tennessee Health Science Center, Memphis, United States.
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Rosenbach KP, Greener BN, Rosenbach JT, Wetzstein GA. ASCENIV utilization in a primary immunodeficiency patient with recurrent viral infections. Immunol Med 2023; 46:58-60. [PMID: 36562473 DOI: 10.1080/25785826.2022.2151170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Primary immunodeficiency (PI) patients may still experience persistent viral and bacterial respiratory infections with ongoing treatments. We report a challenging case of a PI patient who experienced recurrent viral respiratory infections despite receiving standard immunoglobulin replacement therapy. The patient was subsequently managed with immune globulin intravenous, human-slra (ASCENIV™) that contains elevated antibodies against multiple respiratory pathogens. The patient demonstrated significant clinical improvement with a resolution of persistent and debilitating viral respiratory infections and associated sequela.
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Affiliation(s)
| | - Benjamin N Greener
- Clinical Science, Pharmaceutical Product Development Inc., Rockville, MD, USA
| | | | - Gene A Wetzstein
- Medical Affairs and Head of Scientific Engagement, ADMA Biologics, FL, USA
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Villanueva DDH, Arcega V, Rao M. Review of respiratory syncytial virus infection among older adults and transplant recipients. Ther Adv Infect Dis 2022; 9:20499361221091413. [PMID: 35464624 PMCID: PMC9019318 DOI: 10.1177/20499361221091413] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 03/14/2022] [Indexed: 11/25/2022] Open
Abstract
Respiratory syncytial virus (RSV) is a common cause of pulmonary infection among children and has been increasingly recognized as an important respiratory pathogen in older adults and immunocompromised hosts. Among older adults, RSV can lead to exacerbations of underlying lung and cardiac disease. It is also associated with significant morbidity and mortality in hematopoietic stem cell transplant (HSCT) and solid organ transplant (SOT) recipients and may be associated with acute rejection and chronic lung allograft dysfunction among lung transplant recipients (LTRs). Current treatment options for severe RSV disease are limited, and there is a paucity of guidance on RSV treatment among older adults. This narrative review provides a comprehensive overview of RSV disease in older adults, HSCT recipients, and SOT recipients. Nosocomial spread has been reported, thus highlighting the importance of infection prevention and control measures to prevent outbreaks. Antivirals, monoclonal antibodies for immunoprophylaxis, and vaccine development are underway; however, future research is still needed in these critical areas.
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Affiliation(s)
| | - Victor Arcega
- West Virginia University, Morgantown, WV, USA
- West Virginia University, Wheeling, WV, USA
| | - Mana Rao
- Essen Medical Associates, Bronx, NY, USA
- Archcare, New York, NY, USA
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7
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Rocca A, Biagi C, Scarpini S, Dondi A, Vandini S, Pierantoni L, Lanari M. Passive Immunoprophylaxis against Respiratory Syncytial Virus in Children: Where Are We Now? Int J Mol Sci 2021; 22:3703. [PMID: 33918185 PMCID: PMC8038138 DOI: 10.3390/ijms22073703] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 03/22/2021] [Accepted: 04/01/2021] [Indexed: 01/06/2023] Open
Abstract
Respiratory syncytial virus (RSV) represents the main cause of acute respiratory tract infections in children worldwide and is the leading cause of hospitalization in infants. RSV infection is a self-limiting condition and does not require antibiotics. However hospitalized infants with clinical bronchiolitis often receive antibiotics for fear of bacteria coinfection, especially when chest radiography is performed due to similar radiographic appearance of infiltrate and atelectasis. This may lead to unnecessary antibiotic prescription, additional cost, and increased risk of development of resistance. Despite the considerable burden of RSV bronchiolitis, to date, only symptomatic treatment is available, and there are no commercially available vaccines. The only licensed passive immunoprophylaxis is palivizumab. The high cost of this monoclonal antibody (mAb) has led to limiting its prescription only for high-risk children: infants with chronic lung disease, congenital heart disease, neuromuscular disorders, immunodeficiencies, and extreme preterm birth. Nevertheless, it has been shown that the majority of hospitalized RSV-infected children do not fully meet the criteria for immune prophylaxis. While waiting for an effective vaccine, passive immune prophylaxis in children is mandatory. There are a growing number of RSV passive immunization candidates under development intended for RSV prevention in all infants. In this review, we describe the state-of-the-art of palivizumab's usage and summarize the clinical and preclinical trials regarding the development of mAbs with a better cost-effectiveness ratio.
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Affiliation(s)
- Alessandro Rocca
- Pediatric Emergency Unit, Scientific Institute for Research and Healthcare (IRCCS), Sant’Orsola Hospital, 40138 Bologna, Italy; (A.R.); (C.B.); (A.D.); (L.P.); (M.L.)
| | - Carlotta Biagi
- Pediatric Emergency Unit, Scientific Institute for Research and Healthcare (IRCCS), Sant’Orsola Hospital, 40138 Bologna, Italy; (A.R.); (C.B.); (A.D.); (L.P.); (M.L.)
| | - Sara Scarpini
- Specialty School of Paediatrics—Alma Mater Studiorum, University of Bologna, 40126 Bologna, Italy
| | - Arianna Dondi
- Pediatric Emergency Unit, Scientific Institute for Research and Healthcare (IRCCS), Sant’Orsola Hospital, 40138 Bologna, Italy; (A.R.); (C.B.); (A.D.); (L.P.); (M.L.)
| | - Silvia Vandini
- Pediatrics and Neonatology Unit, Imola Hospital, 40026 Imola, Italy;
| | - Luca Pierantoni
- Pediatric Emergency Unit, Scientific Institute for Research and Healthcare (IRCCS), Sant’Orsola Hospital, 40138 Bologna, Italy; (A.R.); (C.B.); (A.D.); (L.P.); (M.L.)
| | - Marcello Lanari
- Pediatric Emergency Unit, Scientific Institute for Research and Healthcare (IRCCS), Sant’Orsola Hospital, 40138 Bologna, Italy; (A.R.); (C.B.); (A.D.); (L.P.); (M.L.)
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Carbonell-Estrany X, Rodgers-Gray BS, Paes B. Challenges in the prevention or treatment of RSV with emerging new agents in children from low- and middle-income countries. Expert Rev Anti Infect Ther 2020; 19:419-441. [PMID: 32972198 DOI: 10.1080/14787210.2021.1828866] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
INTRODUCTION Respiratory syncytial virus (RSV) causes approximately 120,000 deaths annually in children <5 years, with 99% of fatalities occurring in low- and middle-income countries (LMICs). AREAS COVERED There are numerous RSV interventions in development, including long-acting monoclonal antibodies, vaccines (maternal and child) and treatments which are expected to become available soon. We reviewed the key challenges and issues that need to be addressed to maximize the impact of these interventions in LMICs. The epidemiology of RSV in LMICs was reviewed (PubMed search to 30 June 2020 inclusive) and the need for more and better-quality data, encompassing hospital admissions, community contacts, and longer-term respiratory morbidity, emphasized. The requirement for an agreed clinical definition of RSV lower respiratory tract infection was proposed. The pros and cons of the new RSV interventions are reviewed from the perspective of LMICs. EXPERT OPINION We believe that a vaccine (or combination of vaccines, if practicable) is the only viable solution to the burden of RSV in LMICs. A coordinated program, analogous to that with polio, involving governments, non-governmental organizations, the World Health Organization, the manufacturers and the healthcare community is required to realize the full potential of vaccine(s) and end the devastation of RSV in LMICs.
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Affiliation(s)
- Xavier Carbonell-Estrany
- Neonatology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi Suñer (IDIBAPS), Barcelona, Spain
| | | | - Bosco Paes
- Department of Pediatrics (Neonatal Division), McMaster University, Hamilton, Ontario, Canada
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Bates BN, Olah ME. A New Intravenous Immune Globulin: Novel or Not? Ann Pharmacother 2020; 55:117-122. [PMID: 32567360 DOI: 10.1177/1060028020934722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To assess the clinical use and determine the place in therapy for immune globulin intravenous (IV), human-slra, a recently approved IV immune globulin for the treatment of primary immune deficiency diseases (PIDD). DATA SOURCES A PubMed and MEDLINE search (2010 to April 2020) was conducted for relevant articles. Data were also obtained from the package insert. STUDY SELECTION AND DATA EXTRACTION English language publications regarding the clinical efficacy and safety of immune globulin-slra were analyzed. Publications focused on use of immune globulin products were also included. DATA SYNTHESIS Immune globulin-slra is indicated for patients with PIDD and was specifically developed to include donor plasma with high respiratory syncytial virus (RSV) antibody titers. Efficacy was demonstrated through favorable incidence of infections and infection-related complications. Patients treated with immune globulin-slra had increases in anti-RSV neutralizing antibody titers compared with baseline. Adverse events occurred at rates similar to or less than other available immune globulin products. RELEVANCE TO PATIENT CARE AND CLINICAL PRACTICE This review describes a new immune globulin product available for use in patients with PIDD. A novel approach to managing patients at risk of serious infections may be to utilize products with formulations proven to not only boost IgG levels, but also antibodies to specific pathogens. CONCLUSIONS The choice of which immune globulin product to select for a patient or formulary is complex. Each product is unique, and differences between products should be taken into consideration, along with cost and availability.
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Affiliation(s)
- Brittany N Bates
- Raabe College of Pharmacy, Ohio Northern University, Ada, OH, USA
| | - Mark E Olah
- Raabe College of Pharmacy, Ohio Northern University, Ada, OH, USA
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Abstract
Human respiratory syncytial virus (RSV) belongs to the recently defined Pneumoviridae family, Orthopneumovirus genus. It is a negative sense, single stranded RNA virus that results in epidemics of respiratory infections that typically peak in the winter in temperate climates and during the rainy season in tropical climates. Generally, one of the two genotypes (A and B) predominates in a single season, alternating annually, although regional variation occurs. RSV is a cause of disease and death in children, older people, and immunocompromised patients, and its clinical effect on adults admitted to hospital is clarified with expanded use of multiplex molecular assays. Among adults, RSV produces a wide range of clinical symptoms including upper respiratory tract infections, severe lower respiratory tract infections, and exacerbations of underlying disease. Here we discuss the latest evidence on the burden of RSV related disease in adults, especially in those with immunocompromise or other comorbidities. We review current therapeutic and prevention options, as well as those in development.
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Affiliation(s)
- Hannah H Nam
- Division of Infectious Diseases and Organ Transplantation, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Michael G Ison
- Division of Infectious Diseases and Organ Transplantation, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
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11
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Khawaja F, Chemaly RF. Respiratory syncytial virus in hematopoietic cell transplant recipients and patients with hematologic malignancies. Haematologica 2019; 104:1322-1331. [PMID: 31221784 PMCID: PMC6601091 DOI: 10.3324/haematol.2018.215152] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 06/06/2019] [Indexed: 12/16/2022] Open
Abstract
In the USA and other western nations, respiratory syncytial virus is one of the most commonly encountered respiratory viruses among patients who have been diagnosed with a hematologic malignancy or who have undergone a stem cell transplant. Multiple studies have been performed to evaluate the complications associated with respiratory syncytial virus infections. Other studies have evaluated therapeutic agents and strategies in which these agents can be used. There have also been numerous reports of outbreaks in bone marrow transplant units and oncology wards, where infection control measures have been invaluable in controlling the spread of disease. However, despite these novel approaches, respiratory syncytial virus continues to be potentially fatal in immunocompromised populations. In this review, we discuss the incidence of respiratory syncytial viral infections, risk factors associated with progression from upper respiratory tract infection to lower respiratory tract infection, other complications and outcomes (including mortality), management strategies, and prevention strategies in patients with a hematologic malignancy and in hematopoietic cell transplant recipients.
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Affiliation(s)
- Fareed Khawaja
- Department of Infectious Diseases, Infection Control and Employee Health, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Roy F Chemaly
- Department of Infectious Diseases, Infection Control and Employee Health, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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12
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Xing Y, Proesmans M. New therapies for acute RSV infections: where are we? Eur J Pediatr 2019; 178:131-138. [PMID: 30610420 DOI: 10.1007/s00431-018-03310-7] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 12/13/2018] [Accepted: 12/17/2018] [Indexed: 12/22/2022]
Abstract
Respiratory syncytial virus (RSV) infection is one of the main causes of infant hospitalization and mortality. The single-stranded RNA virus codes for 11 proteins of which the F protein, a surface epitope responsible for RSV fusion, is the most targeted for developing antiviral medicines and vaccines. The peak of symptoms occurs around day 4 to 6 of illness and the airway obstruction is merely caused by the host immune inflammatory response. Risk factors for severe bronchiolitis are prematurity, comorbidity, and/or being immunocompromised. At present, there are no curative therapies available for RSV infections and treatment is supportive only. Development of new antiviral medicines is however promising. The aim of this review is to give a summary of the most important new antiviral therapies in clinical development for RSV infection and to explain their mode of action. We therefore performed a literature search on this topic.Conclusion: There are currently at least eight antivirals being investigated in clinical trials. They all use different approaches to either focus on preventing viral fusion with host cells or inhibiting virus replication. Some target RSV surface epitopes like the F protein to halt fusion, others aim for RNA chain termination, while small interfering RNAs downregulate viral protein production. What is known: • RSV bronchiolitis is a very important pediatric disease as it is one of the main causes of infant hospitalization and mortality. By the age of 2 years, 95% of all the infants worldwide will have been infected. • The only recommended therapy is supportive since there are no existing curative therapies yet. What this study adds: • This review gives an overview of the current progress in the research field of RSV antivirals with background information on their mode of action.
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Affiliation(s)
- Ying Xing
- Department of Development and Regeneration, Cluster Organ Systems, Biomedical Sciences, KU Leuven, 3000, Leuven, Belgium
| | - Marijke Proesmans
- Department of Paediatric Pulmonology, University Hospital Leuven, University of Leuven, Herestraat 49, B-3000, Leuven, Belgium.
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13
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Hijano DR, Maron G, Hayden RT. Respiratory Viral Infections in Patients With Cancer or Undergoing Hematopoietic Cell Transplant. Front Microbiol 2018; 9:3097. [PMID: 30619176 PMCID: PMC6299032 DOI: 10.3389/fmicb.2018.03097] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 11/29/2018] [Indexed: 12/25/2022] Open
Abstract
Survival rates for pediatric cancer have steadily improved over time but it remains a significant cause of morbidity and mortality among children. Infections are a major complication of cancer and its treatment. Community acquired respiratory viral infections (CRV) in these patients increase morbidity, mortality and can lead to delay in chemotherapy. These are the result of infections with a heterogeneous group of viruses including RNA viruses, such as respiratory syncytial virus (RSV), influenza virus (IV), parainfluenza virus (PIV), metapneumovirus (HMPV), rhinovirus (RhV), and coronavirus (CoV). These infections maintain a similar seasonal pattern to those of immunocompetent patients. Clinical manifestations vary significantly depending on the type of virus and the type and degree of immunosuppression, ranging from asymptomatic or mild disease to rapidly progressive fatal pneumonia Infections in this population are characterized by a high rate of progression from upper to lower respiratory tract infection and prolonged viral shedding. Use of corticosteroids and immunosuppressive therapy are risk factors for severe disease. The clinical course is often difficult to predict, and clinical signs are unreliable. Accurate prognostic viral and immune markers, which have become part of the standard of care for systemic viral infections, are currently lacking; and management of CRV infections remains controversial. Defining effective prophylactic and therapeutic strategies is challenging, especially considering, the spectrum of immunocompromised patients, the variety of respiratory viruses, and the presence of other opportunistic infections and medical problems. Prevention remains one of the most important strategies against these viruses. Early diagnosis, supportive care and antivirals at an early stage, when available and indicated, have proven beneficial. However, with the exception of neuraminidase inhibitors for influenza infection, there are no accepted treatments. In high-risk patients, pre-emptive treatment with antivirals for upper respiratory tract infection (URTI) to decrease progression to LRTI is a common strategy. In the future, viral load and immune markers may prove beneficial in predicting severe disease, supporting decision making and monitor treatment in this population.
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Affiliation(s)
- Diego R. Hijano
- Department of Infectious Diseases, St Jude Children's Research Hospital, Memphis, TN, United States
| | - Gabriela Maron
- Department of Infectious Diseases, St Jude Children's Research Hospital, Memphis, TN, United States
| | - Randall T. Hayden
- Department of Pathology, St Jude Children's Research Hospital, Memphis, TN, United States
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Ghazaly M, Nadel S. Overview of prevention and management of acute bronchiolitis due to respiratory syncytial virus. Expert Rev Anti Infect Ther 2018; 16:913-928. [PMID: 30381972 DOI: 10.1080/14787210.2018.1543589] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
INTRODUCTION Respiratory Syncytial Virus (RSV) is the most common cause of Acute Bronchiolitis (AVB) in infants. AVB causes significant morbidity and mortality worldwide, most deaths occurring in the developing world. AVB causes respiratory distress in infants, leading to respiratory failure in some cases. Disease is more severe in infants with risk factors, such as prematurity, chronic cardiac and lung disease and immunodeficiency. Areas covered: Despite major advances in supportive care in the developed world, which has led to a significant reduction in mortality, treatment remains symptomatic and supportive. No specific antiviral treatment has yet proven to be effective. Prevention of disease with monoclonal antibodies has proven to reduce illness severity in those with risk factors, however, this is prohibitively expensive, particularly for the developing world. Prospects for vaccine development are improving. However, because most disease is in young infants, maternal immunization is necessary. However, due to the transient nature of RSV immunity and the circulation of multiple subtypes, vaccines proven to be effective in adult challenge models have yet to be translated to protection in infants. Expert commentary: Despite advances in preventative treatments, adherence to evidence-based guidelines provides the best prospect for successful reduction in morbidity and mortality.
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Affiliation(s)
- Marwa Ghazaly
- a Paediatric Intensive Care, Paediatric Intensive Care Unit , St. Mary's Hospital , London , UK.,b Department of Paediatrics , Assuit University , Assiut , Egypt
| | - Simon Nadel
- a Paediatric Intensive Care, Paediatric Intensive Care Unit , St. Mary's Hospital , London , UK
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15
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Nicholson EG, Munoz FM. A Review of Therapeutics in Clinical Development for Respiratory Syncytial Virus and Influenza in Children. Clin Ther 2018; 40:1268-1281. [PMID: 30077340 DOI: 10.1016/j.clinthera.2018.06.014] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 06/15/2018] [Accepted: 06/21/2018] [Indexed: 01/17/2023]
Abstract
PURPOSE Respiratory syncytial virus (RSV) and influenza are important viral pathogens worldwide. Children, in particular, bear considerable burdens of morbidity and mortality associated with these viruses. There are limited therapeutic options for children infected with RSV or influenza. This review focuses on therapeutics for RSV and influenza that are currently under clinical investigation. METHODS This study used a systematic approach to identify prospective therapeutics in clinical trials and briefly reviewed those that are currently available for use in adults and children. FINDINGS Overall, we found 14 investigational drugs currently in clinical trials for RSV and 20 investigation drugs currently in clinical trials for influenza. These candidates range in development from Phase I to Phase III clinical trials. IMPLICATIONS Both RSV and influenza are targets for active therapeutic research, and promising candidates for both viruses are currently in clinical development.
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Affiliation(s)
- Erin G Nicholson
- Departments of Pediatrics and Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas.
| | - Flor M Munoz
- Departments of Pediatrics and Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas
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Abstract
PURPOSE OF REVIEW Non-influenza respiratory virus infections are a frequent cause of severe acute respiratory infections, especially in infants, the elderly, and the immunocompromised. We review here the current treatment options for non-influenza respiratory viruses and promising candidate antiviral agents currently in development. RECENT FINDINGS Small molecule antiviral agents active against respiratory syncytial virus (RSV), such as ALS-8176 and GS-5806, show considerable promise in challenge studies and are undergoing late-phase clinical trials in hospitalised adults and children. Monoclonal antibodies (mAbs) active against non-influenza respiratory viruses are broadly at a preclinical stage. Broad-spectrum antivirals, such as favipiravir and nitrazoxanide, have potential utility in treating illness caused by non-influenza respiratory viruses but further definitive clinical trials are needed. SUMMARY Severe non-influenza respiratory virus infection is common and current treatment is largely supportive. Ribavirin is used in immunocompromised patients but its use is limited by toxicity and the evidence for its efficacy is weak. Effective antiviral treatment for RSV may shortly become available, pending the results of ongoing clinical trials. For other non-influenza viruses, effective treatments may become available in the medium term. Early detection of respiratory viruses with rapid molecular test platforms will be crucial in differentiating virus types and directing the prompt initiation of novel treatments when available.
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Simões EAF, Bont L, Manzoni P, Fauroux B, Paes B, Figueras-Aloy J, Checchia PA, Carbonell-Estrany X. Past, Present and Future Approaches to the Prevention and Treatment of Respiratory Syncytial Virus Infection in Children. Infect Dis Ther 2018; 7:87-120. [PMID: 29470837 PMCID: PMC5840107 DOI: 10.1007/s40121-018-0188-z] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Indexed: 12/27/2022] Open
Abstract
INTRODUCTION The REGAL (RSV Evidence - A Geographical Archive of the Literature) series has provided a comprehensive review of the published evidence in the field of respiratory syncytial virus (RSV) in Western countries over the last 20 years. This seventh and final publication covers the past, present and future approaches to the prevention and treatment of RSV infection among infants and children. METHODS A systematic review was undertaken of publications between January 1, 1995 and December 31, 2017 across PubMed, Embase and The Cochrane Library. Studies reporting data on the effectiveness and tolerability of prophylactic and therapeutic agents for RSV infection were included. Study quality and strength of evidence (SOE) were graded using recognized criteria. A further nonsystematic search of the published literature and Clinicaltrials.gov on antiviral therapies and RSV vaccines currently in development was also undertaken. RESULTS The systematic review identified 1441 studies of which 161 were included. Management of RSV remains centered around prophylaxis with the monoclonal antibody palivizumab, which has proven effective in reducing RSV hospitalization (RSVH) in preterm infants < 36 weeks' gestational age (72% reduction), children with bronchopulmonary dysplasia (65% reduction), and infants with hemodynamically significant congenital heart disease (53% reduction) (high SOE). Palivizumab has also shown to be effective in reducing recurrent wheezing following RSVH (high SOE). Treatment of RSV with ribavirin has conflicting success (moderate SOE). Antibodies with increased potency and extended half-life are currently entering phase 3 trials. There are approximately 15 RSV vaccines in clinical development targeting the infant directly or indirectly via the mother. CONCLUSION Palivizumab remains the only product licensed for RSV prophylaxis, and only available for high-risk infants. For the general population, there are several promising vaccines and monoclonal antibodies in various stages of clinical development, with the aim to significantly reduce the global healthcare impact of this common viral infection. FUNDING AbbVie.
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Affiliation(s)
- Eric A F Simões
- Center for Global Health, Colorado School of Public Health, University of Colorado School of Medicine, Aurora, CO, USA
| | - Louis Bont
- University Medical Center Utrecht, Utrecht, The Netherlands
- ReSViNET (Respiratory Syncytial Virus Network), Utrecht, The Netherlands
| | - Paolo Manzoni
- ReSViNET (Respiratory Syncytial Virus Network), Utrecht, The Netherlands
- Neonatology and NICU, Sant'Anna Hospital, Turin, Italy
| | - Brigitte Fauroux
- Necker University Hospital and Paris 5 University, Paris, France
| | - Bosco Paes
- Department of Paediatrics (Neonatal Division), McMaster University, Hamilton, Canada
| | - Josep Figueras-Aloy
- Hospital Clínic, Catedràtic de Pediatria, Universitat de Barcelona, Barcelona, Spain
| | - Paul A Checchia
- Baylor College of Medicine, Texas Children's Hospital Houston, Houston, TX, USA
| | - Xavier Carbonell-Estrany
- Hospital Clinic, Institut d'Investigacions Biomediques August Pi Suñer (IDIBAPS), Barcelona, Spain.
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19
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Grim SA, Reid GE, Clark NM. Update in the treatment of non-influenza respiratory virus infection in solid organ transplant recipients. Expert Opin Pharmacother 2017; 18:767-779. [PMID: 28425766 PMCID: PMC7103702 DOI: 10.1080/14656566.2017.1322063] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 04/19/2017] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Despite the improved outcomes in solid organ transplantation with regard to prevention of rejection and increased patient and graft survival, infection remains a common cause of morbidity and mortality. Respiratory viruses are a frequent and potentially serious cause of infection after solid organ transplantation. Furthermore, clinical manifestations of respiratory virus infection (RVI) may be more severe and unusual in solid organ transplant recipients (SOTRs) compared with the non-immunocompromised population. Areas covered: This article reviews the non-influenza RVIs that are commonly encountered in SOTRs. Epidemiologic and clinical characteristics are highlighted and available treatment options are discussed. Expert opinion: New diagnostic tools, particularly rapid molecular assays, have expanded the ability to identify specific RVI pathogens in SOTRs. This is not only useful from a treatment standpoint but also to guide infection control practices. More data are needed on RVIs in the solid organ transplant population, particularly regarding their effect on rejection and graft dysfunction. There is also a need for new antiviral agents active against these infections as well as markers that can identify which patients would most benefit from treatment.
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Affiliation(s)
- Shellee A. Grim
- Department of Internal Medicine, Division of Infectious Diseases, Loyola University Medical Center, Maywood, IL, USA
- Department of Pharmacy Practice, College of Pharmacy, University of Illinois, Chicago, IL, USA
| | - Gail E. Reid
- Department of Internal Medicine, Division of Infectious Diseases, Loyola University Medical Center, Maywood, IL, USA
| | - Nina M. Clark
- Department of Internal Medicine, Division of Infectious Diseases, Loyola University Medical Center, Maywood, IL, USA
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