Safety, Tolerability, and Immunogenicity of VAX-31 in Adults ≥50 Years With Prior Pneumococcal Vaccination
Public ClinicalTrials.gov record NCT07425392. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Phase 3, Randomized, Double-Blind, Active-Controlled Clinical Study to Evaluate the Safety, Tolerability, and Immunogenicity of VAX-31 in Healthy Subjects 50 Years of Age and Older With Prior Pneumococcal Vaccination
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The study will evaluate the safety, tolerability, and immunogenicity of VAX-31 in adults ≥50 years of age.
Study identification
- NCT ID
- NCT07425392
- Recruitment status
- Active, not recruiting
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 752 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 50 Years and older
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Feb 9, 2026 (Actual)
- Primary completion
- Mar 2027 (Estimated)
- Completion
- Mar 2027 (Estimated)
- Last update posted
- Jun 30, 2026
2026 – 2027
United States locations
- U.S. sites
- 30
- U.S. states
- 18
- U.S. cities
- 30
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Chinle Center for Indigenous Health | Chinle | Arizona | 86503 | — |
| Avacare (CCT Research) | Phoenix | Arizona | 85044 | — |
| Whiteriver Center for Indigenous Health | Whiteriver | Arizona | 85941 | — |
| Chase Medical Research | Waterbury | Connecticut | 06708 | — |
| CenExel (RCA) | Hollywood | Florida | 33024 | — |
| Eximia (Health Awareness) | Jupiter | Florida | 33458 | — |
| Eximia (Health Awareness) | Port Saint Lucie | Florida | 34952 | — |
| Precision Clinical Research | Sunrise | Florida | 33351 | — |
| The Villages | The Villages | Florida | 32162 | — |
| DelRicht Clinical Research | Stockbridge | Georgia | 30281 | — |
| Velocity Clinical Valparaiso | Valparaiso | Indiana | 46383 | — |
| Johnson County Clin-Trials, LLC | Lenexa | Kansas | 66219 | — |
| DelRicht Clinical Research | New Orleans | Louisiana | 70115 | — |
| Velocity (Meridian Clinical Research) | Rockville | Maryland | 20854 | — |
| DM Clinical Research-Detroit | Southfield | Michigan | 48076 | — |
| AMR | Kansas City | Missouri | 64114 | — |
| DelRicht Research (Command Family Medicine) | Springfield | Missouri | 65807 | — |
| Quality Clinical Research | Omaha | Nebraska | 68114 | — |
| Center of American Indian Health | Gallup | New Mexico | 87301 | — |
| Shiprock Center for Indigenous Health | Shiprock | New Mexico | 87420 | — |
| Rochester Clinical Research, Inc. | Rochester | New York | 14609 | — |
| Headlands (Trial Management Associates) | Wilmington | North Carolina | 28403 | — |
| Tekton Research | Edmond | Oklahoma | 73013 | — |
| DelRicht Research | Hendersonville | Tennessee | 37075 | — |
| Tekton Research | Austin | Texas | 78745 | — |
| REX Clinical Trials | Beaumont | Texas | 77701 | — |
| Flourish Research | San Antonio | Texas | 78229 | — |
| DM Clinical Research | Sugar Land | Texas | 77478 | — |
| Alcanza (Charlottesville Medical Research) | Charlottesville | Virginia | 22911 | — |
| Health Research of Hampton Roads, Inc. | Newport News | Virginia | 23606 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT07425392, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jun 30, 2026 · Synced Oct 21, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT07425392 live on ClinicalTrials.gov.