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Study of a Human Metapneumovirus/Respiratory Syncytial Virus mRNA Vaccine Candidate Encapsulated in a Lipid Nanoparticle-based Formulation in Adults Aged 60 Years and Older

Active, not recruiting · Phase 1, Phase 2 · NCT06686654

Conditions: Human Metapneumovirus Immunization, Respiratory Syncytial Virus Immunization

At a glance

Research payments reported, 2025
$17.9M
U.S. investigators named
24
Sites paid
8
Planned or actual enrollment
1,530

About the trial

Sponsor
Sanofi Pasteur, a Sanofi Company
Tested
Investigational hMPV/RSV vaccine (biological), Investigational hMPV vaccine (monovalent) (biological), Investigational RSV vaccine (monovalent) (biological), Licensed RSV Vaccine (biological), Placebo (biological), Investigational RSV+hMPV vaccine (biological)
Dates
Started 2024-11-11; completion 2027-01-18
Results posted
Not yet

The aim of this study is to evaluate the safety and immunogenicity of a human metapneumovirus (hMPV) / respiratory syncytial virus (RSV) mRNA vaccine candidate encapsulated in a lipid nanoparticle (LNP) based formulation (hereafter referred to as hMPV/RSV vaccine) for the prevention of lower respiratory tract disease (LRTD) caused by hMPV and/or RSV among adults aged 60 years and older. The study will also evaluate the safety and immunogenicity of a booster vaccination using a bivalent hMPV/RSV mRNA vaccine candidate (hereafter referred to as RSV+hMPV mRNA vaccine candidate). Overall, the study is designed to address the following goals: * Assess the safety profile of the candidate formul…

From ClinicalTrials.gov, last updated 2025-12-11. Full record, eligibility and contacts (opens in a new tab)

Industry funding

Sanofi Pasteur Inc. reported $17.9M in research payments for this study in 2025 (475 payments).

Research payments usually go to hospitals, universities and research sites to run a study, not to the investigators personally. A payment is not evidence of wrongdoing.

U.S. investigators named on this study

Clinicians the company named as principal investigators in its Open Payments reports.

Sites paid to run it

  • Velocity Clinical Research,inc $10.2M
  • Velocity Clinical Research $2.9M
  • Suncoast Research Associates Llc $2.0M
  • Peninsula Headlands Llc $1.7M
  • Collaborative Neuroscience Research (cenexel Cns) $718,948
  • Suncoast Research Associates, Llc $160,194
  • The Children's Mercy Hospital, MO $125,000
  • Velocity Clinical Research Inc $49,172

Sources: CMS Open Payments research payments (program year 2025) and ClinicalTrials.gov, U.S. National Library of Medicine.