Vaxcyte, Inc.: Phase 3 study completed, 4049 enrolled (Pneumococcal Disease)

Vaxcyte, Inc.: Phase 3 study completed, 4049 enrolled (Pneumococcal Disease). Its enrollment of 4,049 is top-decile (98th percentile of 8,879 records). Dated 20 days ago, it is in the active follow-up window. Score 75/100. As of 2026-11-04, from ClinicalTrials.gov (U.S. National Library of Medicine) API v2.

Data as of · Compiled by Zalwin from ClinicalTrials.gov (U.S. National Library of Medicine) API v2

enrollment: 4,049 · 98th percentile of 8,879 ClinicalTrialStartPulse records · 50.6x the median

Free preview: all 15 published fields of this record are shown below. Locked: 499 related US ClinicalTrialStartPulse records and the 7-column CSV export.

FieldValue
SponsorVaxcyte, Inc.
Sponsor typeIndustry (pharma, biotech, medtech)
StudySafety, Tolerability, and Immunogenicity of VAX-31 in Adults ≥50 Years With Immunobridging to Adults 18-49
NCT IDNCT07284654
PhasePhase 3
Statuscompleted
ConditionsPneumococcal Disease
Intervention typesbiological
Target enrollment4049
Site countriesUnited States
Posted2025-12-16
Planned start2025-12-01
EventCompleted
Event date2026-09-17
Last update posted2026-10-16
enrollment percentile98th of 8,879 (median 80, 50.6x median)
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  • Source agency: ClinicalTrials.gov (U.S. National Library of Medicine) API v2
  • Record date: 2026-10-16
  • Data refreshed: 2026-11-04
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LIVE PUBLIC DATA Source: ClinicalTrials.gov (U.S. National Library of Medicine) API v2 · Last refreshed: Wed, 04 Nov 2026 06:04:38 GMT

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Peer benchmark and outreach value: Vaxcyte, Inc. and 2,512 US peers

  • US ClinicalTrialStartPulse records like this one: 2,512
  • Vaxcyte, Inc.'s enrollment: 98th percentile of 8,879 records
  • Timing: Medium: dated in the last 30 days
  • Estimated pipeline if you contact every US peer: $502,400 (peers × rate × deal size; an estimate from your assumptions, not a forecast)

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75 / 100 Score

  • Industry sponsor (buys outsourced services).
  • Completed: closeout, analysis and the next study ahead.
  • Phase 3: multi-site, larger budget.
  • 4049 participants planned.

What is the ClinicalTrialStartPulse record for Vaxcyte, Inc.?

Vaxcyte, Inc.'s Phase 3 study (NCT07284654) in Pneumococcal Disease, first posted 2025-12-16: completed (2026-09-17), in an update posted 2026-10-16.

How does Vaxcyte, Inc. compare to other ClinicalTrialStartPulse records?

This is a top-decile record: its enrollment of 4,049 is 50.6x the median of 80 across 8,879 records. It is 20 days old, still within a typical 45-day follow-up window. Its Score of 75/100 puts it among the stronger signals in this feed.

Vaxcyte, Inc. vs. top 3 peers

OrganizationLocationAmountPercentileRecord date
Vaxcyte, Inc.US4,04998th2026-10-16
Merck Sharp & Dohme LLCUS1,10495th2026-11-03
Janssen Research & Development, LLCUS86493rd2026-11-03
Janssen Research & Development, LLCUS74392nd2026-11-03

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