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Respiratory Syncytial Virus: early-phase trial registry
A small indexed set (8 trials) with no open enrollment listed right now.
Corpus placement: #2,176 of 28,707 conditions by registered trial count.
8 US clinical trials · none currently recruiting · #2,176 of 28,707 conditions by registered trial count
Respiratory Syncytial Virus: 8 US clinical trials tracked, none currently recruiting.
Respiratory Syncytial Virus is the subject of 8 registered US clinical trials on ClinicalTrials.gov, none currently recruiting. 2 are in Phase 3-4 (later-stage) and 5 in Phase 1-2 (earlier-stage). The most active sponsor is ModernaTX, running 5 of these trials.
Enrollment posture brief
Registry condition respiratory-syncytial-virus
OPEN 0 | RECR 0% | LATE 2 | EARLY 5 | RANK #2176 | SPON 5
Volume-matched condition peers
Nearest open-share peer: Accelerated Phase Chronic Myelogenous Leukemia (0% recruiting · 12 trials)
Respiratory Syncytial Virus has no open enrollment in this registry pull (8 archived studies). Peers show how other volume-matched labels compare on open share. How peer matching works →
Key findings
What ClinicalTrials.gov does not surface for Respiratory Syncytial Virus on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.
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Respiratory Syncytial Virus is recruiting below its size-band peers.
0 of 8 indexed trials (0%) are open to enrollment, against a 46.5% average across 27,806 conditions with fewer than 20 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.
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One sponsor concentrates Respiratory Syncytial Virus research.
ModernaTX accounts for 5 of 8 trials (62.5%). 4 distinct sponsors appear on at least one study for this condition label.
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Typical Respiratory Syncytial Virus enrolment sits around 346 participants.
Median target enrolment is 346 among the 8 trials that report a genuine target (sentinel values excluded). 3 of those (37.5%) plan for fewer than 100 participants.
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Respiratory Syncytial Virus research is mostly interventional.
7 interventional and 1 observational studies make up this index (87.5% interventional). Study type is sponsor-reported on ClinicalTrials.gov.
Indexed trials (enrollment closed)
8 total, page 1 of 1
A Study to Investigate the Immunogenicity and Safety of mRNA-1345 Vaccine Targeting Respiratory Syncytial Virus (RSV) in High-risk Adults
ModernaTX
NCT06067230
A Study of mRNA-1345 Following a Primary Dose of a Licensed Protein Subunit Respiratory Syncytial Virus (RSV) Vaccine in Adult Participants ≥60 Years of Age
ModernaTX
NCT07117487
A Study of mRNA-1345 Vaccine Targeting Respiratory Syncytial Virus in Pregnant Women and in Infants Born to Vaccinated Mothers
ModernaTX
NCT06143046
A Safety, Tolerability, and Immunogenicity Study of mRNA-1345 and mRNA-1365 in Participants Aged 5 Months to <24 Months
ModernaTX
NCT05743881
A Study of mRNA-1345, an mRNA Vaccine Targeting Respiratory Syncytial Virus, in Children 2 to <18 Years of Age at High Risk of Respiratory Syncytial Virus
ModernaTX
NCT06097299
Dose, Safety, Tolerability and Immunogenicity of a Stabilized Prefusion RSV F Subunit Protein Vaccine, VRC-RSVRGP084-00-VP (DS-Cav1), Alone or With Alum Adjuvant, in Healthy Adults
National Institute of Allergy and Infectious Diseases (NIAID)
NCT03049488
A Study to Assess EDP-938 for the Treatment of Acute Upper Respiratory Tract Infection With Respiratory Syncytial Virus in Adult Subjects
Enanta Pharmaceuticals
NCT04196101
Respiratory Events Among Premature Infants
MedImmune
NCT00889070
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 1 | 2 |
| Phase 2 | 3 |
| Phase 3 | 2 |
Top Sponsors
Named interventions
Most-linked intervention names on Respiratory Syncytial Virus records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Respiratory Syncytial Virus trials. A trial with sites in several states counts in each.
Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.
Related
What to do with this Respiratory Syncytial Virus page
8 registered trials, 0 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- No Respiratory Syncytial Virus trials are currently recruiting in this registry; that can change as new trials post, or check the broader research index. Browse research indexes
- ModernaTX sponsors the most Respiratory Syncytial Virus trials on record, review their full trial history before evaluating a specific study. See ModernaTX's trials
- Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide
Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.
Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Respiratory Syncytial Virus condition card totals 8 registered trials; most-linked intervention mRNA-1345; top US site state Florida. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.