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Quadrivalent Recombinant influenza vaccine season/2022-2023/NH

Phase 3

Influenza Immunization | Monoclonal antibody | Infectious Disease |Sanofi|Last Updated: Sep 9, 2025

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment1,308

FDA Designations

No designations recorded

Clinical trial landscape

Quadrivalent Recombinant influenza vaccine season/2022-2023/NH · 1 trial · 1 indication

Phase 3 1
NCT05513053Study With Quadrivalent Recombinant Influenza Vaccine (RIV4) in Participants 9 Through 49 Years of Age.Influenza Immunization
COMPLETED1,308 Analytics
PHASE3COMPLETED
Study With Quadrivalent Recombinant Influenza Vaccine (RIV4) in Participants 9 Through 49 Years of Age.
Influenza ImmunizationUnlock trial analytics

Study Endpoints

Primary Endpoints

Geometric Mean Titers (GMTs) Against Influenza Vaccine Antibodies at Day 29
Day 29

GMTs of anti-influenza antibodies were measured using individual hemagglutination inhibition (HAI) assay for 4 influenza virus strains: A/H1N1, A/H3N2, B/Victoria, and B/Yamagata lineages.

Percentage of Participants With Seroconversion for Influenza Vaccine Antibodies at Day 29
Day 29

Anti-influenza antibodies were measured using HAI assay for 4 influenza virus strains: A/H1N1, A/H3N2, B/Victoria, and B/Yamagata lineages. Seroconversion was defined as either a pre-vaccination titer less than (\<) 1:10 (1/dilution) at Day 1 and a post-vaccination titer greater than or equal to (\>=) 1: 40 (1/dilution) at Day 29 or a pre-vaccination titer \>= 1:10 at Day 1 and a \>= 4-fold increase in post-vaccination titer.

Secondary Endpoints

GMTs Against Influenza Vaccine Antibodies at Day 1
Pre-vaccination on Day 1
Percentage of Participants With Detectable HAI Titers >=10 and >=40 for Influenza Vaccine Antibodies at Days 1 and 29
On Days 1 and 29
Geometric Mean Titer Ratio (GMTR) of Influenza Vaccine Antibodies
On Days 1 and 29
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
Group 9 to 17 years oldEXPERIMENTALParticipants of 9 to 17 years old who received RIV4 single intramuscular (IM) injection at D01
Group 18 to 49 years oldEXPERIMENTALParticipants of 18 to 49 years old who received RIV4 single intramuscular (IM) injection at D01

Interventions

NameTypeDescription
Quadrivalent Recombinant influenza vaccine (RIV4) season/2022-2023/NHBIOLOGICALPharmaceutical form: Solution for injection Route of administration: intramuscular
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Eligibility Criteria

Age Range9 Years to 49 Years
SexALL
Healthy VolunteersYes
Study Sites35

Inclusion Criteria: * Aged 9 to 49 years on the day of inclusion * A female participant was eligible to participate if she was not pregnant or breastfeeding and one of the following conditions applies: 1) was of non-childbearing potential. To be considered of non-childbearing potential, a female sh...

Countries:United StatesCzechiaPolandSpain
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