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Influenza Hemagglutinin mRNA vaccine

Phase 1

Influenza | Monoclonal antibody | Infectious Disease |Sanofi|Last Updated: Nov 7, 2023

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindCONTROLLED
Total Trials1
Total Enrollment388

FDA Designations

No designations recorded

Clinical trial landscape

Influenza Hemagglutinin mRNA vaccine · 1 trial · 2 indications

Phase 1 1
NCT06118151Safety and Immunogenicity of a Monovalent mRNA Vaccine Encoding Influenza Hemagglutinin in Adult Participants 18 Years of Age and OlderInfluenza
COMPLETED388 Analytics
PHASE1COMPLETED
Safety and Immunogenicity of a Monovalent mRNA Vaccine Encoding Influenza Hemagglutinin in Adult Participants 18 Years of Age and Older
InfluenzaUnlock trial analytics

Study Endpoints

Primary Endpoints

Presence of any unsolicited systemic adverse events (AEs) reported in the 30 minutes after injection
Within 30 minutes after injection

Number of participants with unsolicited systemic immediate adverse events (AEs)

Presence of solicited injection site reactions (ie, pre listed in the participant's diary card [DC] and in the electronic case report form [eCRF]) occurring up to 7 days after injection
Up to 7 days after injection

Number of participants with solicited injection site reactions

Presence of solicited systemic reactions (ie, pre-listed in the participant's DC and in the eCRF) occurring up to 7 days after injection
Up to 7 days after injection

Number of participants with solicited systemic reactions

Presence of unsolicited AEs reported up to 28 days after injection
Up to 28 days after injection

Number of participants with unsolicited AEs

Presence of medically attended AEs (MAAEs) reported up to 28 days after injection
Up to 28 days after injection

Number of participants with medically attended adverse events (MAAE)s

Presence of serious adverse events (SAEs) and adverse events of special interest (AESIs) throughout the study
From baseline up to 6 months

Number of participants with serious adverse events (SAEs)

Presence of out-of-range biological test results (including shift from baseline values) up to 28 days after injection
Up to 28 days after injection

Number of participants with out-of-range biological test results

Secondary Endpoints

Hemagglutination inhibition (HAI) antibody (Ab) titers to homologous H3 strain at D29, D91, and D181
At Day 29, Day 91, and Day 181
Individual HAI Ab titer ratio D29/D01, D91/D01, D91/D29, D181/D01, and D181/D29
From baseline up to 6 months
HAI Ab titer ≥ 40 [1/dil] at D29, D91, and D181
At Day 29, Day 91 and Day 181
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
sentinel cohort 1EXPERIMENTAL20 Participants in each age group will receive either Influenza hemagglutinin mRNA vaccine candidate dose 1 or dose 2 and half number of the participants in each age group also receiving the RIV4 control
sentinel cohort 2EXPERIMENTAL20 Participants in each age group will receive either Influenza hemagglutinin mRNA vaccine candidate dose 3 or dose 4 and half number of the participants in each age group also receiving the RIV4 control
sentinel cohort 3EXPERIMENTAL10 Participants in each age group will receive Influenza hemagglutinin mRNA vaccine candidate dose 5 with half of the participants in each age group also receiving the RIV4 control
main cohort 1EXPERIMENTAL40 Participants in each age group will receive either Influenza hemagglutinin mRNA vaccine candidate dose 1 or dose 2 and half number of the participants in each age group also receiving the RIV4 control
main cohort 2EXPERIMENTAL40 Participants in each age group will receive either Influenza hemagglutinin mRNA vaccine candidate dose 3 or dose 4 and half number of the participants in each age group also receiving the RIV4 control
main cohort 3EXPERIMENTAL20 Participants in each age group will receive Influenza hemagglutinin mRNA vaccine candidate dose 5, and half number of the participants in each age group also receiving the RIV4 control

Interventions

NameTypeDescription
Influenza Hemagglutinin mRNA vaccineBIOLOGICALPharmaceutical form:Solution for injection-Route of administration:IM injection
Quadrivalent Recombinant Influenza VaccineBIOLOGICALPharmaceutical form:Solution for injection-Route of administration:IM injection
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersYes
Study Sites20

Inclusion Criteria: * Having given written informed consent prior to undertaking any study-related procedure. Exclusion Criteria: Participants are excluded from the study if any of the following criteria apply: * Any subject who, in the judgment of the Investigator, is likely to be noncompliant dur...

Countries:United States
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Frequently asked questions about Influenza Hemagglutinin mRNA vaccine

What is Influenza Hemagglutinin mRNA vaccine used for?

Influenza Hemagglutinin mRNA vaccine is an investigational vaccine being developed for the prevention of influenza. It is designed to encode the influenza hemagglutinin protein to elicit an immune response. The vaccine is currently in Phase 1 clinical development and has not been approved by regulatory authorities.

Who makes Influenza Hemagglutinin mRNA vaccine?

Influenza Hemagglutinin mRNA vaccine is being developed by Sanofi, a multinational pharmaceutical company listed on the stock exchange under the ticker SNY. Sanofi is conducting clinical trials to evaluate the safety and immunogenicity of this investigational vaccine for influenza.

What phase is Influenza Hemagglutinin mRNA vaccine in?

Influenza Hemagglutinin mRNA vaccine is in Phase 1 clinical development. It is an investigational vaccine and has not yet received regulatory approval. The Phase 1 trial has been completed, and the vaccine remains under evaluation for safety and immunogenicity in adult participants.

What clinical trials is Influenza Hemagglutinin mRNA vaccine in?

Influenza Hemagglutinin mRNA vaccine has been studied in one completed Phase 1 clinical trial, registered as NCT06118151. This trial assessed the safety and immunogenicity of a monovalent mRNA vaccine encoding influenza hemagglutinin in 388 adult participants aged 18 years and older in the United States.

Is Influenza Hemagglutinin mRNA vaccine the same as a flu shot?

Influenza Hemagglutinin mRNA vaccine is an investigational mRNA-based vaccine designed to prevent influenza, whereas traditional flu shots are typically inactivated or live attenuated vaccines. This mRNA vaccine encodes the influenza hemagglutinin protein to stimulate an immune response, but it is not yet approved and remains in clinical development.