A Study on the Safety and Immune Response to an mRNA-based RSV Investigational Vaccine in Healthy Adults Aged 18-45 Years

NCT06573281 · Status: ACTIVE_NOT_RECRUITING · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 213

Last updated 2025-09-08

No results posted yet for this study

Summary

The purpose of this study is to assess the reactogenicity, safety and immune response of various formulations of the RSV mRNA investigational vaccine administered in healthy participants 18-45 years of age.

Conditions

  • Respiratory Syncytial Virus Infections

Interventions

BIOLOGICAL

Investigational RSV vaccine 1

Investigational RSV vaccine 1 administered intramuscularly on Day 1 and Day 30.

BIOLOGICAL

Investigational RSV vaccine 2

Investigational RSV vaccine 2 administered intramuscularly on Day 1 and Day 30.

BIOLOGICAL

Investigational RSV vaccine 3

Investigational RSV vaccine 3 administered intramuscularly on Day 1 and Day 30.

BIOLOGICAL

Investigational RSV vaccine 4

Investigational RSV vaccine 4 administered intramuscularly on Day 1 and Day 30.

BIOLOGICAL

Investigational RSV vaccine 5

Investigational RSV vaccine 5 administered intramuscularly on Day 1 and Day 30.

BIOLOGICAL

Investigational RSV vaccine 6

Investigational RSV vaccine 6 administered intramuscularly on Day 1.

DRUG

Placebo

Placebo administered intramuscularly on Day 1 and Day 30 and for RSV\_Group F placebo administered only on Day 30.

Sponsors & Collaborators

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
QUADRUPLE
Model
SEQUENTIAL

Eligibility

Min Age
18 Years
Max Age
45 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2024-09-30
Primary Completion
2026-04-13
Completion
2026-04-13
FDA Drug
Yes

Countries

  • United States
  • Australia
  • 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 NCT06573281 on ClinicalTrials.gov