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Pneumococcal Vaccines: full-pipeline trial registry
3 of 6 indexed Pneumococcal Vaccines trials are currently recruiting.
Corpus placement: #2,866 of 28,707 conditions by registered trial count.
6 US clinical trials · 3 currently recruiting · #2,866 of 28,707 conditions by registered trial count
Pneumococcal Vaccines: 6 US clinical trials tracked, 3 recruiting.
Pneumococcal Vaccines is the subject of 6 registered US clinical trials on ClinicalTrials.gov, 3 of them currently open to new participants. 3 are in Phase 3-4 (later-stage) and 3 in Phase 1-2 (earlier-stage). The most active sponsor is Vaxcyte, running 6 of these trials.
Enrollment posture brief
Registry condition pneumococcal-vaccines
OPEN 3 | RECR 50% | LATE 3 | EARLY 3 | RANK #2866 | SPON 6
Volume-matched condition peers
Nearest open-share peer: Achalasia (50% recruiting · 8 trials)
Pneumococcal Vaccines lists 3 open slots (50% of 6 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 Pneumococcal 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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Pneumococcal Vaccines is recruiting above its size-band peers.
3 of 6 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.
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One sponsor concentrates Pneumococcal Vaccines research.
Vaxcyte accounts for 6 of 6 trials (100%). 1 distinct sponsors appear on at least one study for this condition label.
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Typical Pneumococcal Vaccines enrolment sits around 905 participants.
Median target enrolment is 905 among the 6 trials that report a genuine target (sentinel values excluded). 0 of those (0%) plan for fewer than 100 participants.
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Pneumococcal Vaccines research is mostly interventional.
6 interventional and 0 observational studies make up this index (100% interventional). Study type is sponsor-reported on ClinicalTrials.gov.
Open and recent trials
6 total, page 1 of 1
Safety, Tolerability, and Immunogenicity of VAX-31 in Adults ≥50 Years With Immunobridging to Adults 18-49
Vaxcyte
NCT07284654
A Clinical Study to Evaluate the Safety, Tolerability, and Immunogenicity of VAX-31 With Influenza Vaccine in Adults ≥ 50 Years of Age
Vaxcyte
NCT07365826
Safety, Tolerability, and Immunogenicity of VAX-31 in Adults ≥50 Years With Prior Pneumococcal Vaccination
Vaxcyte
NCT07425392
A Clinical Study to Evaluate the Safety, Tolerability, and Immunogenicity of VAX-31 in Healthy Infants
Vaxcyte
NCT06720038
Safety, Tolerability, and Immunogenicity of a 24-Valent Pneumococcal Conjugate Vaccine (VAX-24) in Healthy Infants
Vaxcyte
NCT05844423
Safety, Tolerability, and Immunogenicity Study of a 24-Valent Pneumococcal Conjugate Vaccine (VAX-24) in Older Adults
Vaxcyte
NCT05297578
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 2 | 3 |
| Phase 3 | 3 |
Top Sponsors
Named interventions
Most-linked intervention names on Pneumococcal Vaccines records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Pneumococcal 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 Pneumococcal Vaccines page
6 registered trials, 3 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 3 Pneumococcal Vaccines trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Vaxcyte sponsors the most Pneumococcal Vaccines trials on record, review their full trial history before evaluating a specific study. See Vaxcyte'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 Pneumococcal Vaccines condition card totals 6 registered trials; most-linked intervention PCV20; top US site state Nebraska. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.