A Study of 9-valent Extraintestinal Pathogenic Escherichia Coli Vaccine (ExPEC9V) and High-dose Quadrivalent Influenza Vaccine, With and Without Co-administration, in Adults Aged 65 Years or Older
Public ClinicalTrials.gov record NCT06134804. 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 Controlled Study to Evaluate the Immunogenicity, Safety, and Reactogenicity of ExPEC9V and High-dose Quadrivalent Influenza Vaccine, With and Without Co-administration, in Adults Aged 65 Years or Older
Study identification
- NCT ID
- NCT06134804
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Lead sponsor
- Janssen Research & Development, LLC
- Industry
- Enrollment
- 959 participants
Conditions and interventions
Interventions
- ExPEC9V Biological
- HD quadrivalent influenza vaccine Biological
- Placebo Biological
Biological
Eligibility (public fields only)
- Age range
- 65 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
- Oct 23, 2023
- Primary completion
- Feb 18, 2024
- Completion
- Jul 25, 2024
- Last update posted
- Apr 2, 2026
2023 – 2024
United States locations
- U.S. sites
- 24
- U.S. states
- 14
- U.S. cities
- 22
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Medical Affiliated Research Center Inc. (MARC) | Huntsville | Alabama | 35801 | — |
| Alliance for Multispeciality Research | Mobile | Alabama | 36608 | — |
| Artemis Institute for Clinical Research | San Diego | California | 92103 | — |
| Diablo Clinical Research, Inc. | Walnut Creek | California | 94598 | — |
| Optimal Research | Melbourne | Florida | 32934 | — |
| Pharmax Research Clinic Inc | Miami | Florida | 33126 | — |
| Suncoast Research Associates, LLC | Miami | Florida | 33173 | — |
| Atlanta Center for Medical Research | Atlanta | Georgia | 30331 | — |
| Velocity Clinical Research | Savannah | Georgia | 31406 | — |
| Synexus Clinical Research US Inc | Chicago | Illinois | 60602 | — |
| Optimal Research | Peoria | Illinois | 61614 | — |
| Synexus Radiant Research, Inc | Evansville | Indiana | 47714 | — |
| Heartland Research Associates, LLC | Newton | Kansas | 67114 | — |
| Heartland Research Associates, an AMR Company | Wichita | Kansas | 67207 | — |
| Alliance for Multispeciality Research | Lexington | Kentucky | 40509 | — |
| Synexus Clinical Research US Inc | Creve Coeur | Missouri | 63141 | — |
| Accellacare | Wilmington | North Carolina | 28401 | — |
| CTI Clinical Trial and Consulting Services | Cincinnati | Ohio | 45212 | — |
| Velocity Clinical Research | Cleveland | Ohio | 44122 | — |
| Velocity Clinical Research | East Greenwich | Rhode Island | 02818 | — |
| Alliance for Multispeciality Research | Knoxville | Tennessee | 37909 | — |
| Benchmark Clinical Research - Austin | Austin | Texas | 78705 | — |
| Optimal Research | Austin | Texas | 78744 | — |
| Tekton Research Inc. | Beaumont | Texas | 77706 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 17 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT06134804, 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 Apr 2, 2026 · Synced May 18, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT06134804 live on ClinicalTrials.gov.