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mRNA-1365

Phase 1

Respiratory Syncytial Virus (RSV) | Monoclonal antibody | Infectious Disease |Moderna, Inc.|Last Updated: Aug 19, 2026

Target and mechanism

Molecular targetRSV prefusion F glycoprotein and hMPV F protein
Target classGlycoprotein
ModalityMonoclonal antibody

Also known as mRNA-1365 (Profile 2)

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLED
Total Trials1
Total Enrollment375

FDA Designations

No designations recorded

Clinical trial landscape

mRNA-1365 · 1 trial · 2 indications

Phase 1 1
NCT07764237A Study to Investigate Safety, Reactogenicity, and Immunogenicity of mRNA-1365 (Profile 2) in Older Healthy AdultsRespiratory Syncytial Virus (RSV)
RECRUITING375 Analytics
PHASE1RECRUITING
A Study to Investigate Safety, Reactogenicity, and Immunogenicity of mRNA-1365 (Profile 2) in Older Healthy Adults
Respiratory Syncytial Virus (RSV)Unlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants with Solicited Local and Systemic Adverse Reactions (ARs)
Up to Day 7 (the day of study intervention and 6 subsequent days)
Number of Participants with Unsolicited Adverse Events (AEs)
Up to Day 28 (the day of study intervention and 27 subsequent days)
Number of Participants with Medically Attended Adverse Events (MAAEs), Serious Adverse Events (SAEs), Any AEs Leading to Study Discontinuation, and AEs of Special Interest (AESIs)
Up to End of Study (EOS) (Day 181)

Secondary Endpoints

Geometric Mean Level of Serum Neutralizing Antibodies (nAbs)
Day 29
Geometric Mean Fold Rise (GMFR) of Serum Neutralizing Antibodies (nAbs)
Day 29
Percentage of Particpants with Seroresponse Based on Serum Neutralizing Antibodies (nAbs) Level
Day 29
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelSEQUENTIAL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
mRNA-1365 (Profile 2) Dose Level 1EXPERIMENTALParticipants will receive 1 injection of mRNA-1365 (Profile 2) at Dose Level 1 on Day 1.
mRNA-1365 (Profile 2) Dose Level 2EXPERIMENTALParticipants will receive 1 injection of mRNA-1365 (Profile 2) at Dose Level 2 on Day 1.
mRNA-1365 (Profile 2) Dose Level 3EXPERIMENTALParticipants will receive 1 injection of mRNA-1365 (Profile 2) at Dose Level 3 on Day 1.
mRNA-1345 (Profile 1)ACTIVE_COMPARATORParticipants will receive 1 injection of mRNA-1345 (Profile 1) on Day 1.
mRNA-1345 (Profile 3)ACTIVE_COMPARATORParticipants will receive 1 injection of mRNA-1345 (Profile 3) on Day 1.

Interventions

NameTypeDescription
mRNA-1365 (Profile 2)BIOLOGICALSterile liquid for injection
mRNA-1345 (Profile 1)BIOLOGICALSterile liquid for injection
mRNA-1345 (Profile 3)BIOLOGICALSterile liquid for injection
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Eligibility Criteria

Age Range60 Years to N/A
SexALL
Healthy VolunteersYes
Study Sites10

Key Inclusion Criteria: * In good general health or with stable chronic medical conditions, as determined by medical evaluation including medical history and physical examination. * Body mass index within the range 18.5 to 35 kg/m2 (inclusive). Key Exclusion Criteria: * History of anaphylaxis or ...

Countries:CanadaUnited Kingdom
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Recent Changes (Last 90 Days)

LOWAug 20, 2026NCT07764237Status: NOT_YET_RECRUITING → RECRUITING
LOWAug 20, 2026NCT07764237Status: NOT_YET_RECRUITING → RECRUITING
LOWAug 20, 2026NCT07764237Status: NOT_YET_RECRUITING → RECRUITING
LOWAug 20, 2026NCT07764237Status: NOT_YET_RECRUITING → RECRUITING
LOWAug 14, 2026NCT07764237NEW_TRIAL: changed
LOWAug 14, 2026NCT07764237NEW_TRIAL: changed
LOWAug 14, 2026NCT07764237NEW_TRIAL: changed

Frequently asked questions about mRNA-1365

What is mRNA-1365 used for?

mRNA-1365 is an investigational messenger RNA vaccine being developed for the prevention of Respiratory Syncytial Virus (RSV) infection. It is also being studied for protection against Human Metapneumovirus (hMPV), as the ongoing clinical trial evaluates both conditions in older healthy adults.

What does mRNA-1365 target?

mRNA-1365 targets the RSV prefusion F glycoprotein and the hMPV F protein. These are surface glycoproteins that enable the viruses to enter host cells, and the vaccine is designed to elicit an immune response against them.

Who makes mRNA-1365?

mRNA-1365 is being developed by Moderna, Inc., a biotechnology company traded on the Nasdaq under the ticker symbol MRNA. The company is conducting a Phase 1 clinical trial to evaluate the vaccine's safety and immunogenicity.

What phase is mRNA-1365 in?

mRNA-1365 is in Phase 1 clinical development. It is an investigational vaccine and has not been approved by regulatory authorities. The ongoing Phase 1 trial is actively recruiting participants to assess its safety, reactogenicity, and immunogenicity.

What clinical trials is mRNA-1365 in?

mRNA-1365 is being evaluated in a single Phase 1 clinical trial registered as NCT07764237. This randomized, double-blind, active-controlled study is recruiting 375 healthy adults aged 60 years and older in Canada and the United Kingdom to investigate the vaccine's safety and immune response.

Is mRNA-1365 the same as mRNA-1365 (Profile 2)?

Yes, mRNA-1365 is also referred to as mRNA-1365 (Profile 2). The clinical trial NCT07764237 explicitly uses the name mRNA-1365 (Profile 2) to describe the vaccine being studied, indicating that this is the same investigational product.