Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Influenza Vaccines: later-stage trial registry
1 of 2 indexed Influenza Vaccines trials are currently recruiting, with more weight in Phase 3-4.
Corpus placement: #7,188 of 28,707 conditions by registered trial count.
2 US clinical trials · 1 currently recruiting · #7,188 of 28,707 conditions by registered trial count
Influenza Vaccines: 2 US clinical trials tracked, 1 recruiting.
Influenza Vaccines is the subject of 2 registered US clinical trials on ClinicalTrials.gov, 1 of them currently open to new participants. 2 are in Phase 3-4 (later-stage) and 0 in Phase 1-2 (earlier-stage). The most active sponsor is Washington University School of Medicine, running 1 of these trials.
Enrollment posture brief
Registry condition influenza-vaccines
OPEN 1 | RECR 50% | LATE 2 | EARLY 0 | RANK #7188 | SPON 1
Volume-matched condition peers
Nearest open-share peer: Abdominal Aortic Aneurysms (50% recruiting · 6 trials)
Influenza Vaccines lists 1 open slots (50% of 2 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →
Key findings
What ClinicalTrials.gov does not surface for Influenza Vaccines 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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Influenza Vaccines is recruiting above its size-band peers.
1 of 2 indexed trials (50%) 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.
Open and recent trials
2 total, page 1 of 1
Characterizing the Human Airway Immune Response to FluMist Vaccination
Washington University School of Medicine
NCT07177417
Safety and Tolerability Study of GlaxoSmithKline (GSK)1557484A Vaccine in Adults at Occupational Risk for Influenza A (H5N1) Exposure
GlaxoSmithKline
NCT01788228
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 3 | 1 |
| Phase 4 | 1 |
Top Sponsors
Named interventions
Most-linked intervention names on Influenza Vaccines records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Influenza Vaccines 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 Influenza Vaccines page
2 registered trials, 1 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 1 Influenza Vaccines trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Washington University School of Medicine sponsors the most Influenza Vaccines trials on record, review their full trial history before evaluating a specific study. See Washington University School of Medicine'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 Influenza Vaccines condition card totals 2 registered trials; most-linked intervention Influenza A (H5N1) Virus Monovalent Vaccine, Adjuvanted (A/Indonesia); top US site state Wisconsin. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.