Recent Updates
Recently added Catalysts

Quadrivalent Influenza mRNA Vaccine MRT5410

Phase 1

Influenza Immunization | Monoclonal antibody | Infectious Disease |Sanofi|Last Updated: Mar 18, 2025

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLED
Total Trials1
Total Enrollment682

FDA Designations

No designations recorded

Clinical trial landscape

Quadrivalent Influenza mRNA Vaccine MRT5410 · 1 trial · 1 indication

Phase 1 1
NCT05624606Safety and Immunogenicity of Quadrivalent Influenza mRNA Vaccine MRT5410 in Adult Participants 18 Years of Age and OlderInfluenza Immunization
COMPLETED682 Analytics
PHASE1COMPLETED
Safety and Immunogenicity of Quadrivalent Influenza mRNA Vaccine MRT5410 in Adult Participants 18 Years of Age and Older
Influenza ImmunizationUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of participants with immediate adverse events (AEs)
Within 30 minutes after injection

Unsolicited systemic AEs that occur within 30 minutes after vaccination

Number of participants with solicited injection site reactions or systemic reactions
Within 7 days after injection

Adverse reactions pre-listed in the protocol and case report form (CRF) Injection site reactions: pain, redness, swelling, hardening, bruising Systemic reactions: fever, headache, malaise, myalgia, arthralgia, chills

Number of participants with unsolicited AEs
Within 28 days after injection

AEs that do not fulfill the conditions of solicited reactions

Number of participants with medically attended adverse events (MAAE)s
Within 180 days after injection

AEs with a new onset or a worsening of a condition that prompts the participant or participant to seek unplanned medical advice at a physician's office or Emergency Department

Number of participants with serious adverse events (SAEs)
From Day 1 until Day 366

SAEs reported throughout the study

Number of participants with out-of-range biological test results
Within 8 days after injection

Out-of-range biological test results (including shift from baseline values)

Individual Hemagglutination inhibition (HAI) titer
Day 1 and Day 29

Antibody titers are expressed as GMTs at baseline and post-baseline

Percentage of participants with detectable antibody HAI titers greater than or equal to (≥) 10 [1/dil]
Day 1 and Day 29
Individual HAI titer ratio
Day 1 and Day 29

Ratios of antibody titers measured by HAI in each group before and after vaccination

Number of participants archiving HAI seroconversion against Antigens
Day 1 and Day 29

Number of participants with titer \< 10 \[1/dil\] at Day 1 and post-vaccination titer ≥ 40 \[1/dil\] at Day 29, or titer ≥ 10 \[1/dil\] at Day 1 and a ≥ 4-fold-rise in titer \[1/dil\] at Day 29

Percentage of participants with antibody HAI titers greater than or equal to (≥) 40 [1/dil]
Day 29
Percentage of participants with 2-fold and 4-fold rise in HAI titers
Day 1 and Day 29

Secondary Endpoints

Neutralizing Ab titers
Day 1 and Day 29
Individual neutralizing antibodies titer ratio
Day 1 and Day 29
Percentage of participants with 2-fold and 4-fold increase in neutralizing titers
Day 1 and Day 29
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
Group 1: Quadrivalent Influenza mRNA Vaccine MRT5410 low doseEXPERIMENTALparticipants will receive a single dose (low) of QIV mRNA vaccine
Group 2: Quadrivalent Influenza mRNA Vaccine MRT5410 medium doseEXPERIMENTALparticipants will receive a single dose (medium) of QIV mRNA vaccine
Group 3: Quadrivalent Influenza mRNA Vaccine MRT5410 high doseEXPERIMENTALparticipants will receive a single dose (high) of QIV mRNA vaccine
Group 4: RIV4ACTIVE_COMPARATORparticipants will receive a single dose of RIV4 vaccine
Group 5: QIV-SDACTIVE_COMPARATORparticipants will receive a single dose of QIV-SD vaccine
Group 6: QIV-HDACTIVE_COMPARATORparticipants will receive a single dose of QIV -HD vaccine

Interventions

NameTypeDescription
Quadrivalent Influenza mRNA Vaccine MRT5410BIOLOGICALPharmaceutical form: Liquid frozen solution for injection in a vial Route of administration: Intramuscular
Quadrivalent Recombinant Influenza vaccine RIV4BIOLOGICALPharmaceutical form: Liquid suspension for injection in prefilled syringe Route of administration: Intramuscular
Quadrivalent Inactivated Influenza Standard Dose QIV-SDBIOLOGICALPharmaceutical form: Liquid suspension for injection in prefilled syringe Route of administration: Intramuscular
Quadrivalent Inactivated Influenza High Dose QIV-HDBIOLOGICALPharmaceutical form: Liquid suspension for injection in prefilled syringe Route of administration: Intramuscular
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersYes
Study Sites25

Inclusion Criteria: * Aged 18 years on the day of inclusion (US) and aged 21 years on the day of inclusion (Puerto Rico) * A female participant is eligible to participate if she is not pregnant or breastfeeding and one of the following conditions applies: Is of non-childbearing potential. To be co...

Countries:United StatesPuerto Rico
Unlock Eligibility Criteria

Frequently asked questions about Quadrivalent Influenza mRNA Vaccine MRT5410

What is Quadrivalent Influenza mRNA Vaccine MRT5410 used for?

Quadrivalent Influenza mRNA Vaccine MRT5410 is an investigational vaccine for influenza immunization in adults 18 years of age and older. It is designed to provide protection against influenza, though it is still in clinical development and not yet approved.

Who makes Quadrivalent Influenza mRNA Vaccine MRT5410?

Quadrivalent Influenza mRNA Vaccine MRT5410 is being developed by Sanofi, a biopharmaceutical company listed on the stock exchange under the ticker SNY. Sanofi is conducting clinical trials to evaluate the vaccine's safety and immunogenicity.

What phase is Quadrivalent Influenza mRNA Vaccine MRT5410 in?

Quadrivalent Influenza mRNA Vaccine MRT5410 is in Phase 1 clinical development. It is an investigational vaccine, meaning it has not been approved by regulatory authorities and is still being studied for safety and immune response in clinical trials.

What clinical trials is Quadrivalent Influenza mRNA Vaccine MRT5410 in?

Quadrivalent Influenza mRNA Vaccine MRT5410 has been studied in one completed Phase 1 clinical trial, identified as NCT05624606. This trial assessed the safety and immunogenicity of the vaccine in 682 adult participants aged 18 years and older in the United States and Puerto Rico.

Is Quadrivalent Influenza mRNA Vaccine MRT5410 the same as MRT5410?

Yes, Quadrivalent Influenza mRNA Vaccine MRT5410 is the same as MRT5410. The full name includes the quadrivalent formulation, while MRT5410 is the shorter identifier used in clinical trial registries and scientific literature.