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mRNA-1018-H5

Phase 3

Influenza | Monoclonal antibody | Infectious Disease |Moderna, Inc.|Last Updated: Aug 11, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment4,050

FDA Designations

No designations recorded

Clinical trial landscape

mRNA-1018-H5 · 1 trial · 1 indication

Phase 3 1
NCT07496450A Study of mRNA-1018-H5 Pandemic Influenza Vaccine in Healthy AdultsInfluenza
ACTIVE NOT_RECRUITING4,050 Analytics
PHASE3ACTIVE NOT_RECRUITING
A Study of mRNA-1018-H5 Pandemic Influenza Vaccine in Healthy Adults
InfluenzaUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of Participants With Hemagglutination Inhibition (HAI) Titer ≥ 1:40 at Day 43
Day 43

HAI Titer \>=1:40.

Percentage of Participants With Seroconversion at Day 43, as Measured by HAI Assay
Day 43

Seroconversion is defined as a Day 43 titer ≥1:40 if baseline is \<1:10 or a 4-fold or greater rise if baseline is ≥1:10 in HAI titer measured by HAI assay.

Number of Participants with Solicited Local and Systemic Adverse Reactions (ARs)
Up to Day 29 (7 days after each injection)
Number of Participants with Unsolicited Adverse Events (AEs)
Up to Day 50 (28 days after each injection)
Number of Participants with AEs Leading to Discontinuation, Medically-attended AEs (MAAEs), Serious Adverse Events (SAEs), Adverse Events of Special Interest (AESIs)
Day 1 to Day 205

Secondary Endpoints

Geometric Mean Titer (GMT) of Anti-H5N1 Antibodies at Day 43, as Measured by Microneutralization (MN) Assay
Day 43
GMT of HAI Antibodies at Days 22 and 205, as Measured by HAI Assay
Days 22 and 205
GMT of HAI Antibodies at Days 22 and 205, as Measured by MN Assay
Days 22 and 205
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
mRNA-1018-H5 VaccineEXPERIMENTALParticipants will receive mRNA-1018-H5 vaccine by intramuscular (IM) injection on Day 1 and Day 22.
PlaceboPLACEBO_COMPARATORParticipants will receive placebo matched to mRNA-1018-H5 vaccine by IM injection on Day 1 and Day 22.

Interventions

NameTypeDescription
mRNA-1018-H5BIOLOGICALSterile liquid for injection.
PlaceboBIOLOGICALSterile liquid for injection.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersYes
Study Sites35

Key Inclusion Criteria: * Healthy as determined by medical evaluation including medical history; and physical examination. Participants with clinically stable chronic medical conditions are permitted. * Participants who are assigned female at birth or could become pregnant are eligible to participa...

Countries:United StatesUnited Kingdom
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Recent Changes (Last 90 Days)

MEDIUMAug 11, 2026NCT07496450Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMAug 11, 2026NCT07496450Status: RECRUITING → ACTIVE_NOT_RECRUITING

Frequently asked questions about mRNA-1018-H5

What is mRNA-1018-H5 used for?

mRNA-1018-H5 is an investigational vaccine being developed for influenza, specifically as a pandemic influenza vaccine. It is currently in Phase 3 clinical development and is not yet approved by regulatory authorities.

Who makes mRNA-1018-H5?

mRNA-1018-H5 is being developed by Moderna, Inc., a biotechnology company publicly traded under the ticker symbol MRNA on the NASDAQ stock exchange.

What phase is mRNA-1018-H5 in?

mRNA-1018-H5 is currently in Phase 3 clinical development. It is an investigational vaccine and has not been approved by the FDA or other regulatory agencies. The ongoing Phase 3 trial is active but not recruiting participants.

What clinical trials is mRNA-1018-H5 in?

mRNA-1018-H5 is being studied in a Phase 3 clinical trial with the identifier NCT07496450. This randomized, double-blind, placebo-controlled study is evaluating the vaccine in healthy adults aged 18 years and older, with an enrollment of 4,050 participants across the United States and United Kingdom.

Is mRNA-1018-H5 the same as a pandemic influenza vaccine?

Yes, mRNA-1018-H5 is being developed as a pandemic influenza vaccine. The ongoing Phase 3 trial is specifically titled 'A Study of mRNA-1018-H5 Pandemic Influenza Vaccine in Healthy Adults,' indicating its intended use for pandemic influenza preparedness.