Trial reportClinical infectious diseases : an official publication of the Infectious Diseases Society of America2021
Suptavumab for the Prevention of Medically Attended Respiratory Syncytial Virus Infection in Preterm Infants.
Trial report in Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02325791 (A Phase 3, Randomized, Double-Blind, Placebo-Controlled Study Evaluating the Efficacy and Safety of a Human Monoclonal Antibody, REGN2222, for the Prevention of Medically Attended RSV Infection in Preterm Infants), which is not on this map. Cited by 99 papers, 6 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
A Phase 3, Randomized, Double-Blind, Placebo-Controlled Study Evaluating the Efficacy and Safety of a Human Monoclonal Antibody, REGN2222, for the Prevention of Medically Attended RSV Infection in Preterm Infants
Who cites it
99 citing papers in PubMed, 6 syntheses or guidelines pooled it, 145 citations in OpenAlex.
- Meta-analysis of the efficacy of palivizumab versus nirsevimab at preventing medically attended respiratory syncytial virus infections in non-hospitalized preterm infants.Human vaccines & immunotherapeutics · 2026Pooled it
- RSV prophylactics for pediatric populations: A product review and meta-analysis of real-world effectiveness.Human vaccines & immunotherapeutics · 2026Pooled it
- Efficacy and safety of monoclonal antibodies against respiratory syncytial virus disease in premature infants: a systematic review and network meta-analysis.Frontiers in pediatrics · 2026Pooled it
- Research hotspots and global trends in respiratory syncytial virus over past five years.Frontiers in microbiology · 2025Pooled it
- Monoclonal Antibody for the Prevention of Respiratory Syncytial Virus in Infants and Children: A Systematic Review and Network Meta-analysis.JAMA network open · 2023Pooled it
- A systematic review on global RSV genetic data: Identification of knowledge gaps.Reviews in medical virology · 2022Pooled it
- Trial
- A Phase 1b/2a Trial of a Half-life Extended Respiratory Syncytial Virus Neutralizing Antibody, Clesrovimab, in Healthy Preterm and Full-term Infants.The Journal of infectious diseases · 2025Trial
- Reduced Respiratory Syncytial Virus Load, Symptoms, and Infections: A Human Challenge Trial of MVA-BN-RSV Vaccine.The Journal of infectious diseases · 2023Trial
- Molecular and phenotypic characteristics of RSV infections in infants during two nirsevimab randomized clinical trials.Nature communications · 2023Trial
- REGN-COV2, a Neutralizing Antibody Cocktail, in Outpatients with Covid-19.The New England journal of medicine · 2021Trial
- Nirsevimab for respiratory syncytial virus prevention: A comprehensive product review.Human vaccines & immunotherapeutics · 2026Review
- Article
- Review
- Detection of nirsevimab-resistant RSV-B variants in children carrying the F:N201T substitution through genomic surveillance, Spain, 2025/26 season.Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2026Article
- Genomic Surveillance Uncovers a Shift in Respiratory Syncytial Virus Subtype Dominance and the Local Expansion of Subclade B.D.E.1.7.Open forum infectious diseases · 2026Article
- A comprehensive look at Respiratory Syncytial Virus (RSV): from pathogenesis to prevention.Tropical diseases, travel medicine and vaccines · 2026Review
- Live-attenuated vaccines of human respiratory syncytial virus for infants and young children: Progress and prospects of an old yet promising platform.Biosafety and health · 2026Review
- Developmental Progress and Future Potential for Inhaled Biologics in the Treatment of Respiratory Diseases.Drugs · 2026Review
- Delineating RSV-A and RSV-B: Epidemiological Patterns, Diagnostics, Clinical Severity, and Preventive Approaches.Journal of medical virology · 2026Review
39 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
23 authors at 5 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundRespiratory syncytial virus (RSV) is a major cause of childhood medically attended respiratory infection (MARI).
methodsWe conducted a randomized, double-blind, placebo-controlled phase 3 trial in 1154 preterm infants of 1 or 2 doses of suptavumab, a human monoclonal antibody that can bind and block a conserved epitope on RSV A and B subtypes, for the prevention of RSV MARI. The primary endpoint was proportion of subjects with RSV-confirmed hospitalizations or outpatient lower respiratory tract infection (LRTI).
resultsThere were no significant differences between primary endpoint rates (8.1%, placebo; 7.7%, 1-dose; 9.3%, 2-dose). Suptavumab prevented RSV A infections (relative risks, .38; 95% confidence interval [CI], .14-1.05 in the 1-dose group and .39 [95% CI, .14-1.07] in the 2-dose group; nominal significance of combined suptavumab group vs placebo; P = .0499), while increasing the rate of RSV B infections (relative risk 1.36 [95% CI, .73-2.56] in the 1-dose group and 1.69 [95% CI, .92-3.08] in the 2-dose group; nominal significance of combined suptavumab group vs placebo; P = .12). Sequenced RSV isolates demonstrated no suptavumab epitope changes in RSV A isolates, while all RSV B isolates had 2-amino acid substitution in the suptavumab epitope that led to loss of neutralization activity. Treatment emergent adverse events were balanced across treatment groups.
conclusionsSuptavumab did not reduce overall RSV hospitalizations or outpatient LRTI because of a newly circulating mutant strain of RSV B. Genetic variation in circulating RSV strains will continue to challenge prevention efforts. CLINICAL TRIALS REGISTRATION: NCT02325791.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.