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Not Yet RecruitingNCT07516418

Study of Different Formulations of Vaccines Encoding the RSV Monovalent Antigen or the Flu H5 Antigen in Participants 18 to 49 Years of Age

A Phase 1, Randomized, Multi-center Study to Evaluate the Safety and Immunogenicity of Different Formulations of Vaccines Encoding the RSV Monovalent Antigen or the Flu H5 Antigen in Healthy Participants 18 to 49 Years of Age

Status
Not Yet Recruiting
Phase
Phase 1
Study type
Interventional
Enrollment
570 (estimated)
Sponsor
Sanofi · Industry
Sex
All
Age
18 Years – 49 Years
Healthy volunteers
Accepted

Summary

The purpose of this study is to evaluate the safety and immunogenicity of different formulations of vaccines encoding the RSV monovalent antigen or the Flu hemagglutinin subtype 5 (H5) antigen in healthy participants aged 18 to 49 years. The total duration of study participation for each participant varies by stage and treatment arm. Stage 1: * For Arm 1, Arm 2, and Arm 3 the duration of study participation will be approximately 7 months for each participant. * For Arm 4, Arm 5, and Arm 6 the duration of study participation will be approximately 6 months for each participant. Stage 2: For all arms, the duration of study participation will be approximately 7 months for each participant.

Conditions

Interventions

TypeNameDescription
BIOLOGICALH5 Flu Investigational Medical Product (IMP) 1Suspension for injection. Route of administration: Intramuscular (IM) injection
BIOLOGICALH5 Flu IMP 2Suspension for injection. Route of administration: Intramuscular (IM) injection
BIOLOGICALH5 Flu IMP 3Suspension for injection. Route of administration: Intramuscular (IM) injection
BIOLOGICALRSV IMP 4Suspension for injection. Route of administration: Intramuscular (IM) injection
BIOLOGICALRSV IMP 5Suspension for injection. Route of administration: Intramuscular (IM) injection
BIOLOGICALRSV IMP 6Suspension for injection. Route of administration: Intramuscular (IM) injection
BIOLOGICALH5 Flu IMP 7Suspension for injection. Route of administration: Intramuscular (IM) injection
BIOLOGICALH5 Flu IMP 8Suspension for injection. Route of administration: Intramuscular (IM) injection
BIOLOGICALH5 Flu IMP 9Suspension for injection. Route of administration: Intramuscular (IM) injection
BIOLOGICALH5 Flu IMP 10Suspension for injection. Route of administration: Intramuscular (IM) injection
BIOLOGICALH5 Flu IMP 11Suspension for injection. Route of administration: Intramuscular (IM) injection
BIOLOGICALH5 Flu IMP 12Suspension for injection. Route of administration: Intramuscular (IM) injection

Timeline

Start date
2026-04-13
Primary completion
2027-04-04
Completion
2027-04-04
First posted
2026-04-08
Last updated
2026-04-08

Source: ClinicalTrials.gov record NCT07516418. Inclusion in this directory is not an endorsement.