CI

At a glance

ClinicalIndex Comparison Record
Phase 3Completed· 26,675 enrolled
Drug / intervention
Placebo +1 morebiological
Likely dose
Not stated in 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/NCT04886596
NCT04886596Phase 3Completed

A Phase 3, Randomized, Placebo-controlled, Observer-blind, Multi-country Study to Demonstrate the Efficacy of a Single Dose and Annual Revaccination Doses of GSK's RSVPreF3 OA Investigational Vaccine in Adults Aged 60 Years and Above

GlaxoSmithKline·interventional·Posted May 14, 2021·Updated Jul 31, 2025

In Brief

A Phase 3 clinical trial evaluating Placebo and RSVPreF3 OA vaccine for Respiratory Syncytial Virus Infections. Completed, enrolled 26,675 participants across 277 sites in 17 countries.

Detailed Summary

This study will evaluate the efficacy of the RSVPreF3 OA investigational vaccine in preventing Lower Respiratory Tract Disease (LRTD) caused by RSV in adults ≥60 years of age following a single dose of the RSVPreF3 OA vaccine and following annual revaccination doses in Northern Hemisphere (NH) and in Southern Hemisphere (SH). This study will also assess if the vaccine is safe and induces an immune response.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesAustralia, Belgium, Canada, Estonia, Finland, Germany, Italy, Japan, Mexico, New Zealand, Poland, Russia, South Africa, South Korea, Spain, United Kingdom, United States
Collaborators--

Timeline

Phase 3CompletedFinished
20222023202420252026
First PostedMay 14, 2021
Enrollment StartMay 25, 2021
Primary CompletionApr 11, 2022
Study CompletionMay 31, 2024
TodayJul 2, 2026
Enrollment to primary: 11 monthsPosted 5.1 years ago

Interventions

Placebobiological

Placebo administered intramuscularly into the deltoid of the non-dominant arm at day 1 and before Season 2 to the Placebo Group, and before Season 2 to the participants of the RSVPreF3 Group, that are re-randomized to the RSV\_1 dose group.

RSVPreF3 OA vaccinebiological

RSVPreF3 OA vaccine administered intramuscularly into the deltoid of the non-dominant arm at Day 1 in the RSVPreF3 group, and before Season 2 to the participants of the RSVPreF3 group that are re-randomized to the RSV\_annual group.