CI

At a glance

ClinicalIndex Comparison Record
Phase 3Completed· 378 enrolled
Drug / intervention
RSVpreF Vaccine +1 morebiological
Likely dose
RSVpreF Vaccine 120 mcgfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT06593587
NCT06593587Phase 3Completed

A PHASE 3 STUDY TO EVALUATE THE SAFETY, TOLERABILITY, AND IMMUNOGENICITY OF RESPIRATORY SYNCYTIAL VIRUS (RSV) PREFUSION F SUBUNIT VACCINE IN OLDER ADULTS IN KOREA

Pfizer·interventional·Posted Sep 19, 2024·Updated Feb 9, 2026

In Brief

A Phase 3 clinical trial evaluating RSVpreF Vaccine and Placebo for Respiratory Syncytial Virus. Completed, enrolled 378 participants across 16 sites.

Detailed Summary

The goal of this clinical trial is to quantify the immune response in older Korean adults after a RSVpreF vaccination. It will also learn about the safety and tolerability of RSVpreF vaccination. The main questions it aims to answer are: What local reactions and systemic events do participants have after a RSVpreF vaccination? What medical problems do participants have after a RSVpreF vaccination? Researchers will compare RSVpreF to a placebo (a look-alike substance that contains no RSVpreF) to see if RSVpreF is safe and well tolerated. It will also examine the change in antibody levels (immune responses) before and after vaccination. Participants will: Receive the RSVpreF vaccination or a placebo injection once at Visit 1. Visit the clinic a month later for a checkup and tests. Receive a phone call 1 week after vaccination, and 2 months after vaccination, for health checks. Keep a diary of their symptoms for 7 days after vaccination.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesSouth Korea
Collaborators--

Timeline

Phase 3CompletedFinished
20252026
First PostedSep 19, 2024
Enrollment StartOct 7, 2024
Primary CompletionFeb 3, 2025
TodayJul 2, 2026
Enrollment to primary: 4 monthsPosted 1.8 years ago

Interventions

RSVpreF Vaccinebiological

RSV Vaccine 120 mcg

Placeboother

Placebo