A Study on the Immune Response and Safety of a Vaccine Against Respiratory Syncytial Virus (RSV) When Given Alone and Together With a COVID-19 mRNA Vaccine in Adults Aged 50 Years and Above

NCT06374394 · Status: COMPLETED · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 841

Last updated 2025-12-26

Study results available
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Summary

This study is assessing the immunogenicity, safety and reactogenicity of the RSVPreF3 OA investigational vaccine when it is co-administered with a COVID-19 messenger ribonucleic acid (mRNA) vaccine (Omicron XBB.1.5), compared to administration of the vaccines separately in adults aged 50 years and above.

Conditions

  • Respiratory Syncytial Virus Infections

Interventions

BIOLOGICAL

RSVPreF3 OA investigational vaccine

1 dose of RSVPreF3 OA investigational vaccine is administered intramuscularly on Day 1 to participants in the Co-ad Group and on Day 31 to participants in the Control Group.

BIOLOGICAL

COVID-19 mRNA vaccine

1 dose of COVID-19 mRNA vaccine is administered intramuscularly on Day 1 to participants in the Co-ad and Control Groups.

Sponsors & Collaborators

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
50 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2024-04-29
Primary Completion
2024-11-01
Completion
2025-03-31
FDA Drug
Yes

Countries

  • United States
  • Belgium
  • Netherlands
  • Spain

Study Locations

More Related Trials

Entities

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06374394 on ClinicalTrials.gov