Trial reportThe Journal of infectious diseases2018
Live-Attenuated Respiratory Syncytial Virus Vaccine Candidate With Deletion of RNA Synthesis Regulatory Protein M2-2 is Highly Immunogenic in Children.
Trial report in The Journal of infectious diseases, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 47 papers, 3 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 I Study of the Safety and Immunogenicity of a Single Dose of the Recombinant Live-Attenuated Respiratory Syncytial Virus Vaccine RSV LID ΔM2-2, Lot RSV#007A, Delivered as Nose Drops to RSV-Seronegative Infants and Children 6 to 24 Months of Age
A Phase I Study of the Safety and Immunogenicity of Recombinant Live-Attenuated Respiratory Syncytial Virus Vaccine RSV LID ΔM2-2 in RSV-Seronegative Infants and Children
Who cites it
47 citing papers in PubMed, 3 syntheses or guidelines pooled it, 70 citations in OpenAlex.
- Efficacy and safety of respiratory syncytial virus vaccines.The Cochrane database of systematic reviews · 2025Pooled it
- Vaccines for the common cold.The Cochrane database of systematic reviews · 2022Pooled it
- The immunogenicity and safety of respiratory syncytial virus vaccines in development: A systematic review.Influenza and other respiratory viruses · 2021Pooled it
- Evaluation of the Live-Attenuated Intranasal Respiratory Syncytial Virus (RSV) Vaccine RSV/6120/ΔNS2/1030s in RSV-Seronegative Young Children.The Journal of infectious diseases · 2024Trial
- Evaluation of Recombinant Live-Attenuated Respiratory Syncytial Virus (RSV) Vaccines RSV/ΔNS2/Δ1313/I1314L and RSV/276 in RSV-Seronegative Children.The Journal of infectious diseases · 2022Trial
- Live-Attenuated Respiratory Syncytial Virus Vaccine With M2-2 Deletion and With Small Hydrophobic Noncoding Region Is Highly Immunogenic in Children.The Journal of infectious diseases · 2020Trial
- Live Respiratory Syncytial Virus Attenuated by M2-2 Deletion and Stabilized Temperature Sensitivity Mutation 1030s Is a Promising Vaccine Candidate in Children.The Journal of infectious diseases · 2020Trial
- Live Respiratory Syncytial Virus (RSV) Vaccine Candidate Containing Stabilized Temperature-Sensitivity Mutations Is Highly Attenuated in RSV-Seronegative Infants and Children.The Journal of infectious diseases · 2018Trial
- 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
- Live Respiratory Syncytial Virus Vaccine D46/cp/ΔM2-2 Is Overattenuated in RSV-Seronegative Children.Open forum infectious diseases · 2026Article
- Intranasal Delivery of an RSV A2-Derived Pre-F VLP Vaccine Induces Robust Mucosal and Systemic Immunity Against RSV B Strain Without Enhanced Disease.Immune network · 2026Article
- Respiratory Syncytial Virus (RSV): A Comprehensive Overview From Basic Biology to Clinical Prevention and Control.Medicinal research reviews · 2026Review
- Evaluation of a strain Long human respiratory syncytial virus withFrontiers in immunology · 2026Article
- Rational design 2.0: transitioning from static structural biology to computational prioritization and iterative vaccine optimization for RSV.Frontiers in immunology · 2026Review
- Challenges and Limitations of Current RSV Prevention Strategies in Infants and Young Children: A Narrative Review.Vaccines · 2025Review
- Preventing RSV Infection in Children: Current Passive Immunizations and Vaccine Development.Pathogens (Basel, Switzerland) · 2025Review
- Infectivity and Immunogenicity of Live-Attenuated Respiratory Syncytial Virus Vaccines in Human Immunodeficiency Virus-Exposed Uninfected Children.Open forum infectious diseases · 2024Article
- Vaccine and therapeutic agents against the respiratory syncytial virus: resolved and unresolved issue.MedComm · 2024Review
- Immune Responses to Respiratory Syncytial Virus Vaccines: Advances and Challenges.Microorganisms · 2024Review
- Review
Corrections and comments
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Authors and funding
21 authors at 14 institutions in 1 country.
Funding
Abstract
Background: Live respiratory syncytial virus (RSV) candidate vaccine LIDΔM2-2 is attenuated by deletion of the RSV RNA regulatory protein M2-2, resulting in upregulated viral gene transcription and antigen expression but reduced RNA replication. Methods: RSV-seronegative children ages 6-24 months received a single intranasal dose of 105 plaque forming units (PFU) of LIDΔM2-2 (n = 20) or placebo (n = 9) (NCT02237209, NCT02040831). RSV serum antibodies, vaccine infectivity, and reactogenicity were assessed. During the following RSV season, participants were monitored for respiratory illness and pre- and post-RSV season serum antibodies. Results: Vaccine virus was shed by 95% of vaccinees (median peak titers of 3.8 log10 PFU/mL by quantitative culture and 6.3 log10 copies/mL by PCR); 90% had ≥4-fold rise in serum neutralizing antibodies. Respiratory symptoms and fever were common in vaccine (95%) and placebo (78%). One vaccinee had grade 2 rhonchi concurrent with vaccine shedding, rhinovirus, and enterovirus. Eight of 19 vaccinees versus 2 of 9 placebo recipients had substantially increased RSV antibody titers after the RSV season without medically attended RSV disease, indicating anamnestic vaccine responses to wild-type RSV without significant illness. Conclusion: LIDΔM2-2 had excellent infectivity and immunogenicity, encouraging further study of vaccine candidates attenuated by M2-2 deletion. Clinical Trials Registration: NCT02237209, NCT02040831.
Indexed as
Identifiers
What OpenQuestion holds
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.