A Clinical Study to Investigate the Safety and Immunogenicity in Relation to Product Attributes of mRNA-1083 (Severe Acute Respiratory Syndrome Coronavirus 2 [SARS-CoV-2] and Influenza Vaccine)

NCT ID: NCT06508320

Last Updated: 2025-10-14

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

932 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-07-15

Study Completion Date

2025-09-25

Brief Summary

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The purpose of this study is to evaluate the safety, reactogenicity, and immunogenicity in relation to the product attributes of mRNA-1083 vaccine when administered as a single intramuscular (IM) injection in adults ≥50 to \<65 years of age.

Detailed Description

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The study will be comprised of 2 parts, Parts 1 and 2. In Part 1, participants will be randomized into 4 study groups (Lots A, B, C, and D). Upon completion of Part 1, participants will be randomized into 2 study groups (Lots A and E) in Part 2.

Conditions

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Influenza SARS-CoV-2

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Part 1 Group 1: mRNA-1083 Lot A

Participants will receive mRNA-1083 Lot A as a single injection on Day 1 in Part 1.

Group Type EXPERIMENTAL

mRNA-1083

Intervention Type BIOLOGICAL

IM injection in a deltoid muscle.

Part 1 Group 2: mRNA-1083 Lot B

Participants will receive mRNA-1083 Lot B as a single injection on Day 1 in Part 1.

Group Type EXPERIMENTAL

mRNA-1083

Intervention Type BIOLOGICAL

IM injection in a deltoid muscle.

Part 1 Group 3: mRNA-1083 Lot C

Participants will receive mRNA-1083 Lot C as a single injection on Day 1 in Part 1.

Group Type EXPERIMENTAL

mRNA-1083

Intervention Type BIOLOGICAL

IM injection in a deltoid muscle.

Part 1 Group 4: mRNA-1083 Lot D

Participants will receive mRNA-1083 Lot D as a single injection on Day 1 in Part 1.

Group Type EXPERIMENTAL

mRNA-1083

Intervention Type BIOLOGICAL

IM injection in a deltoid muscle.

Part 2 Group 5: mRNA-1083 Lot A

Participants will receive mRNA-1083 Lot A as a single injection on Day 1 in Part 2.

Group Type EXPERIMENTAL

mRNA-1083

Intervention Type BIOLOGICAL

IM injection in a deltoid muscle.

Part 2 Group 6: mRNA-1083 Lot E

Participants will receive mRNA-1083 Lot E as a single injection on Day 1 in Part 2.

Group Type EXPERIMENTAL

mRNA-1083

Intervention Type BIOLOGICAL

IM injection in a deltoid muscle.

Interventions

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mRNA-1083

IM injection in a deltoid muscle.

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

1. Investigator assessment that the participant understands and is willing and physically able to comply with protocol-mandated follow-up, including all procedures.
2. Participants of nonchildbearing potential may be enrolled in the study.
3. Participants who could become pregnant: negative pregnancy test, adequate contraception or has abstained from all activities that could result in pregnancy.
4. Capable of giving signed informed consent, which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in the protocol.
5. Have received an influenza vaccine in the previous season (since September 2023 for Part 1, since Sep 2024 for Part 2).

Exclusion Criteria

1. Reported diagnosis or condition that is associated with increased risk of severe influenza disease or complications, including individuals with chronic medical conditions.
2. Reported history of congenital or acquired immunodeficiency, immunosuppressive condition, asplenia, or recurrent severe infections.
3. History of anaphylaxis or severe hypersensitivity reaction requiring medical intervention after receipt of any of the following: mRNA vaccine or therapeutic; components of an mRNA vaccine or therapeutic; influenza vaccine; or components of an influenza vaccine, including egg protein.
4. Received corticosteroids at ≥10 milligrams (mg)/day of prednisone or equivalent for \>14 days in total within 90 days prior to Day 1 or is anticipating the need for corticosteroids at any time during the study.
5. Received systemic immunosuppressive treatment, including long-acting biological therapies that affect immune responses (e.g., infliximab), within 180 days prior to Day 1 or plans to do so during the study.
6. Received or plans to receive any vaccine authorized or approved by a local health agency within 28 days prior to Day 1 or plans to do so within 28 days post study injection.
7. Received a licensed seasonal influenza vaccine within 150 days prior to Day 1.
8. Received a licensed/authorized SARS-CoV-2 vaccine within 90 days prior to Day 1.
9. Received any investigational influenza vaccine, investigational coronavirus disease 2019 (COVID-19) vaccine, or investigational combination vaccine for influenza and COVID-19 within 12 months prior to Day 1. Participants from mRNA-1083-P201 Part 1 will also be excluded from Part 2.
Minimum Eligible Age

50 Years

Maximum Eligible Age

64 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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ModernaTX, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Indago Research & Health Center, Inc.

Hialeah, Florida, United States

Site Status

Cenexel RCA

Hollywood, Florida, United States

Site Status

Suncoast Research Group, LLC DBA Flourish Research

Miami, Florida, United States

Site Status

Cenexel IRA

Decatur, Georgia, United States

Site Status

DM Clinical Research - River Forest

River Forest, Illinois, United States

Site Status

JCCT

Lenexa, Kansas, United States

Site Status

Hassman Research Institute - Berlin - CenExel - PPDS

Marlton, New Jersey, United States

Site Status

DM Clinical Research - Philadelphia

Philadelphia, Pennsylvania, United States

Site Status

DM Clinical Research - Cyfair Clinical Research Center - PPDS

Houston, Texas, United States

Site Status

Clinical Trials of Texas, LLC DBA Flourish Research

San Antonio, Texas, United States

Site Status

DM Clinical Research - Sugarland

Sugar Land, Texas, United States

Site Status

DM Clinical Research - Tomball MDC

Tomball, Texas, United States

Site Status

Centricity Research

Toronto, Ontario, Canada

Site Status

Centricity Research

Toronto, Ontario, Canada

Site Status

Centricity Research

Pointe-Claire, Quebec, Canada

Site Status

Diex Recherche Sherbrooke Inc.

Sherbrooke, Quebec, Canada

Site Status

Diex Recherche Québec Inc.

Québec, , Canada

Site Status

Countries

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United States Canada

Other Identifiers

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mRNA-1083-P201

Identifier Type: -

Identifier Source: org_study_id

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