Study to Evaluate Safety and Immunogenicity of a Pandemic Flu H5 mRNA Vaccine in Healthy Adults Aged 18 Years and Older

ClinicalTrials.gov ID: NCT06727058

Public ClinicalTrials.gov record NCT06727058. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

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ClinicalTrials.gov public records Last synced May 20, 2026, 10:10 AM EDT

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Official title

A Phase 1/2, Randomized, Modified Double-blind, Placebo-controlled, Multi-center, Dose Escalating Study to Evaluate the Safety and Immunogenicity of a Pandemic Flu H5 mRNA Vaccine in Healthy Adults Aged 18 Years and Older

Study identification

NCT ID: NCT06727058
Recruitment status: Completed
Study type: Interventional
Phase: Phase 1, Phase 2
Lead sponsor: Sanofi Pasteur, a Sanofi Company; Industry
Enrollment: 276 participants

Conditions and interventions

Conditions

Influenza Immunization

Interventions

Pandemic flu H5 mRNA vaccine Biological
Placebo Other

Biological · Other

Eligibility (public fields only)

Age range: 18 Years and older
Sex: All
Healthy volunteers: Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date: Dec 8, 2024
Primary completion: Mar 23, 2026
Completion: Mar 23, 2026
Last update posted: Apr 22, 2026

2024 – 2026

United States locations

U.S. sites: 14
U.S. states: 10
U.S. cities: 14

Facility	City	State	ZIP	Site status
Velocity Clinical Research - San Diego- Site Number : 8400013	La Mesa	California	91942	—
Accel Research Sites Network - DeLand Clinical Research Unit- Site Number : 8400002	DeLand	Florida	32720	—
ARSN-Lakeland CRU- Site Number : 8400006	Lakeland	Florida	33803	—
Accel Research Sites - St. Petersburg- Site Number : 8400004	Largo	Florida	33777	—
Atlanta Clinical Research Center- Site Number : 8400007	Atlanta	Georgia	30342	—
Accel Research Site - NeuroStudies.net, LLC - ERN - PPDS- Site Number : 8400003	Decatur	Georgia	30030-2627	—
QUEST Research Institute- Site Number : 8400014	Bingham Farms	Michigan	48334	—
Velocity Clinical Research - Norfolk- Site Number : 8400015	Norfolk	Nebraska	68701	—
Velocity Clinical Research - Omaha- Site Number : 8400012	Omaha	Nebraska	68134	—
Velocity Clinical Research - Springdale- Site Number : 8400010	Cincinnati	Ohio	45246	—
Coastal Carolina Research Center - North Charleston- Site Number : 8400001	North Charleston	South Carolina	29405	—
Olympus Clinical Research - Sugar Land- Site Number : 8400009	Sugar Land	Texas	77479	—
Velocity Clinical Research, Salt Lake City- Site Number : 8400011	West Jordan	Utah	84088	—
Charlottesville Medical Research- Site Number : 8400005	Charlottesville	Virginia	22911	—

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows: Public field values for ClinicalTrials.gov record NCT06727058, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do: No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from: Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh: Last update posted Apr 22, 2026 · Synced May 20, 2026

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The complete protocol, eligibility criteria, and contact information for NCT06727058 live on ClinicalTrials.gov.

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