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Recruiting Phase 3 Interventional Accepts healthy volunteers

A Phase 3 Study of Revaccination in Subsequent Pregnancies With Bivalent RSV Vaccine and Duration of Protection of a Single Dose

ClinicalTrials.gov ID: NCT06866405

Public ClinicalTrials.gov record NCT06866405. 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.

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ClinicalTrials.gov public records Last synced Apr 29, 2026, 10:35 AM EDT

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 Study to Investigate the Safety, Tolerability, and Immunogenicity of Revaccinating Pregnant Participants During Subsequent Pregnancies and Persistence of Immunity of a Single Dose of a Bivalent Respiratory Syncytial Virus (RSV) Vaccine.

Study identification

NCT ID
NCT06866405
Recruitment status
Recruiting
Study type
Interventional
Phase
Phase 3
Lead sponsor
Pfizer
Industry
Enrollment
550 participants

Conditions and interventions

Conditions

Interventions

  • Placebo Biological
  • RSVpreF Biological

Biological

Eligibility (public fields only)

Age range
0 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
Apr 15, 2025
Primary completion
Feb 23, 2028
Completion
Feb 23, 2028
Last update posted
Apr 26, 2026

2025 – 2028

United States locations

U.S. sites
79
U.S. states
20
U.S. cities
33
Facility City State ZIP Site status
Center for Research in Women's Health Birmingham Alabama 35233 Recruiting
Children's of Alabama Birmingham Alabama 35233 Recruiting
University of Alabama at Birmingham - School of Medicine Birmingham Alabama 35233 Recruiting
University of Alabama at Birmingham Women & Infants Center Birmingham Alabama 35233 Recruiting
USA Health Children's and Women's Hospital Mobile Alabama 36604 Recruiting
USA Health Strada Patient Care Center Mobile Alabama 36604 Recruiting
Ronald Reagan UCLA Medical Center Los Angeles California 90024 Recruiting
Ronald Reagan UCLA Medical Center (inpatient hospital) Los Angeles California 90095 Recruiting
Ronald Reagan UCLA Medical Center Los Angeles California 90095 Recruiting
UCLA (outpatient clinic) Los Angeles California 90095 Recruiting
UCLA Clinical and Translational Research Center (research clinic) Los Angeles California 90095 Recruiting
UCLA Los Angeles California 90095 Recruiting
Lucile Packard Children's Hospital-Labor and Delivery Unit Palo Alto California 94304 Recruiting
Stanford Obstetrics Clinic Palo Alto California 94304 Recruiting
Stanford University Medical Center Palo Alto California 94304 Recruiting
Stanford University Palo Alto California 94304 Recruiting
Anschutz Health Sciences Building (AHSB) Aurora Colorado 80045 Recruiting
Children's Hospital Colorado Aurora Colorado 80045 Recruiting
CU Research Pharmacy Aurora Colorado 80045 Recruiting
University of Colorado AO1 UCH Aurora Colorado 80045 Recruiting
University of Colorado Hospital Inpatient Pavilion Aurora Colorado 80045 Recruiting
University of Colorado Hospital Outpatient Pavilion Aurora Colorado 80045 Recruiting
University of Colorado Research II Building Aurora Colorado 80045 Recruiting
Citadelle Clinical Research North Miami Beach Florida 33162 Recruiting
Emerald Coast OBGYN Clinical Research Panama City Florida 32405 Recruiting
Emerald Coast Pediatrics Panama City Florida 32405 Recruiting
HCA Florida Gulf Coast Hospital Panama City Florida 32405 Recruiting
Emerald Coast Pediatrics Panama City Beach Florida 32407 Recruiting
Advanced Specialty Research Boise Idaho 83702 Recruiting
Saint Alphonsus Regional Medical Center Boise Idaho 83706 Recruiting
St. Luke's Boise Medical Center Boise Idaho 83712 Recruiting
Clinical Research Prime Idaho Falls Idaho 83404 Recruiting
Saint Alphonsus Medical Center Nampa Idaho 83687 Recruiting
St. Luke's Nampa Medical Center Nampa Idaho 83687 Recruiting
Accellacare - McFarland Ames Iowa 50010 Recruiting
Mary Greeley Medical Center Ames Iowa 50010 Recruiting
McFarland Clinic, PC Ames Iowa 50010 Recruiting
University of Kansas Medical Center Kansas City Kansas 66160 Recruiting
Velocity Clinical Research, Lafayette Lafayette Louisiana 70508 Recruiting
Velocity Clinical Research - New Orleans New Orleans Louisiana 70119 Recruiting
Boston Medical Center Boston Massachusetts 02118 Recruiting
Velocity Clinical Research, Gulfport Gulfport Mississippi 39503 Recruiting
Boeson Research GTF Great Falls Montana 59405 Recruiting
OBGYN Associates Great Falls Montana 59405 Recruiting
Boeson Research KAL Kalispell Montana 59901 Recruiting
Heart & Hands Midwifery Kalispell Montana 59901 Recruiting
Boeson Research MSO Missoula Montana 59804 Recruiting
Origin Health Missoula Montana 59804 Recruiting
Velocity Clinical Research, Grand Island Grand Island Nebraska 68803 Recruiting
Velocity Clinical Research, Norfolk Norfolk Nebraska 68701 Recruiting
Presbyterian Hospital Albuquerque New Mexico 87107 Recruiting
UNM Hospital Albuquerque New Mexico 87107 Recruiting
Velocity Clinical Research, Albuquerque Albuquerque New Mexico 87107 Recruiting
Lovelace Women's Hospital Albuquerque New Mexico 87109 Recruiting
Duke University - Main Hospital and Clinics Durham North Carolina 27705 Recruiting
Duke University - Main Hospital and Clinics Durham North Carolina 27710 Recruiting
Cincinnati Children's Hospital Medical Center Cincinnati Ohio 45229 Recruiting
Prisma Health-Upstate Greenville South Carolina 29605 Recruiting
Prisma Health Greenville South Carolina 29605 Recruiting
Memorial Hermann Memorial City Hospital Houston Texas 77024 Recruiting
The University of Texas Health Science Center at Houston Houston Texas 77204 Recruiting
Helios Clinical Research - WEA Weatherford Texas 76086 Recruiting
Medical City Weatherford Weatherford Texas 76086 Recruiting
Weatherford OB/GYN Associates Weatherford Texas 76086 Recruiting
University of Utah Salt Lake City Utah 84112 Recruiting
University of Utah Clinical Neuroscience Center Salt Lake City Utah 84132 Recruiting
University of Utah Hospital Salt Lake City Utah 84132 Recruiting
University of Utah Salt Lake City Utah 84132 Recruiting
Sentara Leigh Hospital Norfolk Virginia 23502 Recruiting
The Group For Women - Kempsville Office Norfolk Virginia 23502 Recruiting
Tidewater Physicians for Women Norfolk Virginia 23502 Recruiting
WomensCare Center Norfolk Virginia 23502 Recruiting
Virginia Physicians For Women (VPFW) North Chesterfield Virginia 23235 Recruiting
Clinical Research Partners, LLC Richmond Virginia 23226 Recruiting
Infusion Solutions, LLC Richmond Virginia 23226 Recruiting
Seattle Children's Research Institute Seattle Washington 98101 Recruiting
Seattle Children's Hospital Seattle Washington 98105 Recruiting
University of Washington - Northwest Seattle Washington 98133 Recruiting
University of Washington Medical Center - Montlake Seattle Washington 98195 Recruiting

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 14 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT06866405, 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 26, 2026 · Synced Apr 29, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT06866405 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →