Study of a Respiratory Syncytial Virus/Human Metapneumovirus Vaccine Candidate

NCT06134648 · Status: COMPLETED · Phase: PHASE1/PHASE2 · Type: INTERVENTIONAL · Enrollment: 646

Last updated 2026-03-12

No results posted yet for this study

Summary

The purpose of this study is to assess the safety and immunogenicity of a single intramuscular (IM) injection of different doses of an respiratory syncytial virus (RSV) and human metapneumovirus (hMPV) vaccine candidate, in adult participants aged 60 years and older. In addition, the study will evaluate the safety and immunogenicity of a booster vaccination administered 12 months after the primary vaccination in a subset of the study population.

Conditions

  • Respiratory Syncytial Virus Infection
  • Healthy Volunteers
  • Human Metapneumovirus

Interventions

BIOLOGICAL

RSV/hMPV vaccine candidate Dose L

Pharmaceutical form:Suspension for injection-Route of administration:Intramuscular Injection

BIOLOGICAL

RSV/hMPV vaccine candidate Dose A

Pharmaceutical form:Suspension for injection-Route of administration:Intramuscular Injection

BIOLOGICAL

RSV/hMPV vaccine candidate Dose B

Pharmaceutical form:Suspension for injection-Route of administration:Intramuscular Injection

BIOLOGICAL

Placebo

Pharmaceutical form:Suspension for injection-Route of administration:Intramuscular Injection

Sponsors & Collaborators

  • Sanofi Pasteur, a Sanofi Company

    lead INDUSTRY

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
QUADRUPLE
Model
SEQUENTIAL

Eligibility

Min Age
60 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2023-11-01
Primary Completion
2026-02-27
Completion
2026-02-27
FDA Drug
Yes

Countries

  • United States
  • Puerto Rico

Study Locations

More Related Trials

Entities

Drugs

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 NCT06134648 on ClinicalTrials.gov