NCT05815498

Brief Summary

The purpose of this study (Part 1 and Part 2) is to evaluate the relative vaccine efficacy (rVE), safety, reactogenicity, and immunogenicity of mRNA-1283.222 versus mRNA-1273.222 (Part 1) and mRNA-1283.815 versus mRNA-1273.815 (Part 2).

Trial Health

90
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
13,553

participants targeted

Target at P75+ for phase_3 covid19

Timeline
Completed

Started Mar 2023

Longer than P75 for phase_3 covid19

Geographic Reach
4 countries

230 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 28, 2023

Completed
16 days until next milestone

First Submitted

Initial submission to the registry

April 13, 2023

Completed
5 days until next milestone

First Posted

Study publicly available on registry

April 18, 2023

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 12, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 12, 2025

Completed
1.1 years until next milestone

Results Posted

Study results publicly available

May 1, 2026

Completed
Last Updated

May 1, 2026

Status Verified

April 1, 2026

Enrollment Period

2 years

First QC Date

April 13, 2023

Results QC Date

April 10, 2026

Last Update Submit

April 10, 2026

Conditions

Keywords

mRNA-1283.222mRNA-1273.222mRNA-1283.815mRNA-1273.815SARS-CoV-2SARS-CoV-2 VaccineCoronavirusVirus DiseasesMessenger RNACOVID-19COVID-19 VaccineModerna

Outcome Measures

Primary Outcomes (11)

  • Part 1: Geometric Mean (GM) of Omicron BA.4/5 at Day 29

    Antibody values reported as below the lower limit of quantification (LLOQ) were replaced by 0.5\*LLOQ. Values greater than the upper limit of quantification (ULOQ) were replaced by the ULOQ if actual values were not available. LLOQ was 103 arbitrary units (AU)/milliliter (mL) and ULOQ was 28571 AU/mL.

    Day 29

  • Part 1: Seroresponse Rate (SRR) Omicron BA.4/5 at Day 29

    Seroresponse was defined as an antibody value change from baseline below the LLOQ to ≥4\*LLOQ, or at least a 4-fold rise if baseline was ≥LLOQ and \<4\*LLOQ, or at least a 2-fold rise if baseline was ≥4\*LLOQ, where baseline referred to pre-booster. LLOQ was 103 AU/mL and ULOQ was 28571 AU/mL.

    Day 29

  • Part 1: GM of the Ancestral Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) D614G at Day 29

    Antibody values reported as below the LLOQ were replaced by 0.5\*LLOQ. Values greater than the ULOQ were replaced by the ULOQ if actual values were not available. LLOQ was 10 AU/mL and ULOQ was 111433 AU/mL.

    Day 29

  • Part 1: SRR of Ancestral SARS-CoV-2 D641G at Day 29

    Seroresponse was defined as an antibody value change from baseline below the LLOQ to ≥4\*LLOQ, or at least a 4-fold rise if baseline was ≥LLOQ and \<4\*LLOQ, or at least a 2-fold rise if baseline was ≥4\*LLOQ, where baseline referred to pre-booster. LLOQ was 10 AU/mL and ULOQ was 111433AU/mL.

    Day 29

  • Part 1: Number of Participants With First Event of Centers for Disease Control and Prevention (CDC)-Defined COVID-19

    CDC COVID-19 definition: the presence of at least 1 CDC listed symptom and positive reverse transcriptase polymerase chain reaction (RT-PCR) test on a respiratory sample.

    From 14 days after injection up to Day 365

  • Part 1: Number of Participants With Solicited Local and Systemic Adverse Reactions (ARs)

    Solicited ARs were recorded daily using electronic diaries (eDiaries). Local ARs: injection site pain, erythema (redness), swelling/induration (hardness); and axillary (underarm) swelling or tenderness ipsilateral to the side of injection. Systemic ARs: fever, headache, fatigue, myalgia, arthralgia, nausea/vomiting, and chills. Note, not all solicited ARs were considered adverse events (AEs). Investigator reviewed whether the solicited AR was also to be recorded as an AE. A Summary of serious AEs (SAEs) and nonserious AEs ("Other"), regardless of causality, is located in the "Reported Adverse Events" section.

    Up to Day 7 (7-day follow-up after vaccination)

  • Part 3: Number of Participants With Solicited Local and Systemic ARs

    Solicited ARs were recorded daily using eDiaries. Local ARs: injection site pain, erythema (redness), swelling/induration (hardness); and axillary (underarm) swelling or tenderness ipsilateral to the side of injection. Systemic ARs: fever, headache, fatigue, myalgia, arthralgia, nausea/vomiting, and chills. Note, not all solicited ARs were considered AEs. Investigator reviewed whether the solicited AR was also to be recorded as an AE. A Summary of SAEs and nonserious AEs ("Other"), regardless of causality, is located in the "Reported Adverse Events" section.

    Up to Day 7 (7-day follow-up after vaccination)

  • Part 1: Number of Participants With Unsolicited Adverse Events (AEs)

    An unsolicited AE was defined as any AE reported by the participant that was not specified as a solicited AR in the protocol. An AE was defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related. A summary of all Serious Adverse Events and Other Adverse Events (nonserious) regardless of causality is located in the 'Reported Adverse Events' Section.

    Up to Day 28 (28-day follow-up after vaccination)

  • Part 3: Number of Participants With Unsolicited AEs

    An unsolicited AE was defined as any AE reported by the participant that was not specified as a solicited AR in the protocol. An AE was defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related. A summary of all Serious Adverse Events and Other Adverse Events (nonserious) regardless of causality is located in the 'Reported Adverse Events' Section.

    Up to Day 28 (28-day follow-up after vaccination)

  • Part 1: Number of Participants With Any Serious AEs (SAEs), Medically Attended AEs (MAAEs), AEs Leading to Withdrawal From Study, and AEs of Special Interest (AESIs)

    SAEs were AEs that resulted in death, were life threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent or significant incapacity or substantial disruption of the ability to conduct normal life functions, a congenital anomaly or birth defect, or was a medically important event. MAAEs were AEs that lead to an unscheduled visit to a healthcare provider. AESIs were AEs (serious or nonserious) of scientific and medical concern specific to the Sponsor's product or program for which ongoing monitoring and immediate notification by the investigator to the Sponsor was required. AEs leading to the withdrawal from study reported for this endpoint also include the AEs that led to death. A summary of all Serious Adverse Events and Other Adverse Events (nonserious) regardless of causality is located in the 'Reported Adverse Events' Section.

    Day 1 up to Day 365

  • Part 3: Number of Participants With Any SAEs, MAAEs, AEs Leading to Withdrawal From Study, and AESIs

    SAEs were AEs that resulted in death, were life threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent or significant incapacity or substantial disruption of the ability to conduct normal life functions, a congenital anomaly or birth defect, or was a medically important event. MAAEs were AEs that lead to an unscheduled visit to a healthcare provider. AESIs were AEs (serious or nonserious) of scientific and medical concern specific to the Sponsor's product or program for which ongoing monitoring and immediate notification by the investigator to the Sponsor was required. AEs leading to the withdrawal from study reported for this endpoint also include the AEs that led to death. A summary of all Serious Adverse Events and Other Adverse Events (nonserious) regardless of causality is located in the 'Reported Adverse Events' Section.

    Day 1 up to Day 181

Secondary Outcomes (7)

  • Part 1: GMs of Omicron BA.4/5 and Ancestral SARS-CoV-2 D614G

    Days 91, 181, and 365

  • Part 1: SRR Against Omicron BA.4/5 and Ancestral SARS-CoV-2 D614G at Days 91, 181, and 365

    Days 91, 181, and 365

  • Part 1: Number of Participants With a SARS-CoV-2 Infection (Symptomatic or Asymptomatic)

    From 14 days after injection up to Day 365

  • Part 3: GM of Omicron XBB.1.5 in Unvaccinated Participants

    Day 29

  • Part 3: GM of Omicron XBB.1.5 in All Study Participants

    Day 29

  • +2 more secondary outcomes

Study Arms (4)

Part 1: mRNA-1283.222

EXPERIMENTAL

Participants will receive single intramuscular (IM) injection of mRNA-1283.222 on Day 1.

Biological: mRNA-1283.222

Part 1: mRNA-1273.222

EXPERIMENTAL

Participants will receive single IM injection of mRNA-1273.222 on Day 1.

Biological: mRNA-1273.222

Part 2: mRNA-1283.815

EXPERIMENTAL

Participants will receive single IM injection of mRNA-1283.815 on Day 1.

Biological: mRNA-1283.815

Part 2: mRNA-1273.815

EXPERIMENTAL

Participants will receive single IM injection of mRNA-1273.815 on Day 1.

Biological: mRNA-1273.815

Interventions

mRNA-1283.222BIOLOGICAL

Sterile liquid for injection

Part 1: mRNA-1283.222
mRNA-1273.222BIOLOGICAL

Sterile liquid for injection

Part 1: mRNA-1273.222
mRNA-1283.815BIOLOGICAL

Sterile liquid for injection

Part 2: mRNA-1283.815
mRNA-1273.815BIOLOGICAL

Sterile liquid for injection

Part 2: mRNA-1273.815

Eligibility Criteria

Age12 Years+
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Investigator's assessment that the participant understands and is willing and physically able to comply with protocol-mandated follow-up, including all procedures.
  • For female participants of childbearing potential: negative pregnancy test, adequate contraception or has abstained from all activities that could result in pregnancy for at least 28 days prior to the first injection, and agreement to continue adequate contraception or abstinence through 90 days following the vaccine administration.
  • Part 1: Has previously received a primary series of an authorized/approved COVID-19 vaccine. For participants ≥18 years of age, at least 1 booster dose must have also been received. Proof of prior vaccination is required. A heterologous vaccine regimen is acceptable.
  • Part 2: No prior vaccination is required. For participants who have been previously vaccinated, proof of vaccination is required.

You may not qualify if:

  • Has had close contact, as defined by the Centers for Disease Control and Prevention (CDC), with someone who had a SARS-CoV-2 infection in the past 14 days, or COVID-19 in the past 10 days.
  • Participant is acutely ill or febrile (temperature ≥38.0 degrees Celsius \[°C\]/100.4 degrees Fahrenheit \[°F\]) 72 hours prior to or at the Screening Visit or Day 1.
  • Any medical, psychiatric, or occupational condition, including reported history of substance abuse, that, in the opinion of the investigator, might pose additional risk due to participation in the study or could interfere with the interpretation of study results.
  • Has received systemic immunosuppressants or immune-modifying drugs for \>14 days in total within 181 days prior to Screening (for corticosteroids ≥10 milligrams (mg)/day of prednisone equivalent) or is anticipating the need for immunosuppressive treatment at any time during participation in the study.
  • Has received or plans to receive any licensed vaccine ≤60 days prior to the study injection (Day 1) or plans to receive a licensed vaccine within 60 days after the study injection.
  • Has received systemic immunoglobulins or blood products within 90 days prior to the Screening Visit or plans to receive during the study.
  • Has donated ≥450 milliliters (mL) of blood products within 28 days prior to the Screening Visit or plans to donate blood products during the study.
  • Has participated in an interventional clinical study within 28 days prior to the Screening Visit based on the medical history interview or plans to do so while participating in this study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (230)

Optimal Research

Huntsville, Alabama, 35802, United States

Location

Accel Research Sites- Achieve Clinical Research

Vestavia Hills, Alabama, 35216, United States

Location

Chandler Clinical Trials

Chandler, Arizona, 85224, United States

Location

Phoenix Clinical Research LLC

Phoenix, Arizona, 85014, United States

Location

FRC - CCT Research

Phoenix, Arizona, 85244, United States

Location

Headlands Research Sarasota

Scottsdale, Arizona, 85260, United States

Location

Clinical Research Consortium

Tempe, Arizona, 85281, United States

Location

Noble Clinical Research, LLC

Tucson, Arizona, 85704, United States

Location

Del Sol research Management LLC.

Tucson, Arizona, 85715, United States

Location

Lynn Institute of the Ozarks

Little Rock, Arkansas, 72204, United States

Location

Anaheim Clinical Trials, LLC

Anaheim, California, 92801, United States

Location

Velocity Clinical Research, Banning

Banning, California, 92220, United States

Location

Velocity Clinical Research- Chula Vista

Chula Vista, California, 91911, United States

Location

Benchmark Research

Colton, California, 92324, United States

Location

Marvel Clinical Research 002, LLC

Huntington Beach, California, 92647, United States

Location

Velocity Clinical Research Huntington Park

Huntington Park, California, 90255, United States

Location

Velocity Clinical Research

La Mesa, California, 91942, United States

Location

Chemidox Clinical Trials

Lancaster, California, 93534, United States

Location

Long Beach Clinical Trials

Long Beach, California, 90806, United States

Location

Velocity Clinical Research- Westlake

Los Angeles, California, 90057, United States

Location

Velocity Clinical Research-North Hollywood

North Hollywood, California, 90036, United States

Location

Empire Clinical Research

Pomona, California, 91786, United States

Location

CenExel - CITrials

Riverside, California, 82506, United States

Location

Artemis Institute for Clinical Research

Riverside, California, 92503, United States

Location

Peninsula Research Associates

Rolling Hills Estates, California, 90274, United States

Location

Benchmark Research

Sacramento, California, 95864, United States

Location

Artemis Institute for Clinical Research

San Diego, California, 92103, United States

Location

Acclaim Clinical Research

San Diego, California, 92120, United States

Location

Lynn Institute of Denver

Aurora, Colorado, 80012, United States

Location

Velocity Clinical Research Denver

Denver, Colorado, 80209, United States

Location

Tekton Research - Fort Collins

Fort Collins, Colorado, 80525, United States

Location

Tekton Research, Inc- Longmont Center

Longmont, Colorado, 80501, United States

Location

Alliance for Multispeciality Research - Miami

Coral Gables, Florida, 33134, United States

Location

Nature Coast Clinical Research

Crystal River, Florida, 34429, United States

Location

Beautiful Minds Clinical Research Center

Cutler Bay, Florida, 33157, United States

Location

Clinical Research Partners LLC

DeLand, Florida, 32720, United States

Location

Hillcrest Medical Research, LLC

DeLand, Florida, 32720, United States

Location

Velocity Clinical Research, Hallandale Beach

Hallandale, Florida, 33009, United States

Location

Sweet Hope Research Specialty, Inc.

Hialeah, Florida, 33016, United States

Location

CenExel Research Centers of America

Hollywood, Florida, 33024, United States

Location

Nature Coast Clinical Research

Inverness, Florida, 34452, United States

Location

Encore Research Group-Jacksonville Center for Clinical Research

Jacksonville, Florida, 32216, United States

Location

Clinical Neuroscience Solutions, Inc

Jacksonville, Florida, 32256, United States

Location

Health Awareness INC

Jupiter, Florida, 33458, United States

Location

Accel Clinical Research

Lakeland, Florida, 33803, United States

Location

Accel Research Sites

Largo, Florida, 33709, United States

Location

Acclaim Clinical Research

Maitland, Florida, 32751, United States

Location

Suncoast Research Group, LLC

Miami, Florida, 33135, United States

Location

Clinical Trials of Florida

Miami, Florida, 33186, United States

Location

Suncoast Research Associates, LLC

Miami, Florida, 33713, United States

Location

Floridian Clinical Research

Miami Lakes, Florida, 33016, United States

Location

Global Health Research Center, Inc.

Miami Lakes, Florida, 33016, United States

Location

Clinical Neuroscience Solutions (CNS Healthcare site)

Orlando, Florida, 32801, United States

Location

Headlands Research Orlando

Orlando, Florida, 32819, United States

Location

Innovation Medical Research Center

Palmetto Bay, Florida, 33157, United States

Location

Pines Care Research Center, Inc.

Pembroke Pines, Florida, 33024, United States

Location

Suncoast Research Associates, LLC

Pembroke Pines, Florida, 33324, United States

Location

Synexus

Pinellas Park, Florida, 33781, United States

Location

Precision Clinical Research

Sunrise, Florida, 33351, United States

Location

Global Health Research Center, Inc.

Tampa, Florida, 33615, United States

Location

Santos Research Center CORP

Tampa, Florida, 33615, United States

Location

Palm Beach Research Center

West Palm Beach, Florida, 33409, United States

Location

Delricht Research

Atlanta, Georgia, 30329, United States

Location

Atlanta Clinical Research Center

Atlanta, Georgia, 30342, United States

Location

Baybol Research Institute

Chamblee, Georgia, 30341, United States

Location

Centricity Research

Columbus, Georgia, 31904, United States

Location

Elite Research Network

Decatur, Georgia, 30030, United States

Location

Accel Research Sites Lake Oconee

Eatonton, Georgia, 31024, United States

Location

Georgia Clinic, PC/CCT Research

Norcross, Georgia, 30092, United States

Location

Clinical Research Atlanta/Headlands

Stockbridge, Georgia, 30281, United States

Location

Velocity Clinical Research

Meridian, Idaho, 83642, United States

Location

Chicago Clinical Research Institute

Chicago, Illinois, 60607, United States

Location

Great Lakes Clinical Trials

Chicago, Illinois, 60640, United States

Location

Velocity Clinical Research Valparaiso

Valparaiso, Indiana, 46383, United States

Location

Alliance for Multispecialty Research, LLC

El Dorado, Kansas, 67042, United States

Location

Johnson County Clin-Trials, Inc (JCCT)

Lenexa, Kansas, 66219, United States

Location

Alliance for Multispecialty Research, LLC- Wichita

Wichita, Kansas, 67207, United States

Location

Tekton Research Inc

Wichita, Kansas, 67218, United States

Location

Alliance for Multispecialty Research-Lexington

Lexington, Kentucky, 40509, United States

Location

Versailles Family Medicine

Versailles, Kentucky, 40383, United States

Location

Meridian Clinical Research

Baton Rouge, Louisiana, 70809, United States

Location

Benchmark Research

Covington, Louisiana, 70006, United States

Location

MedPharmics

Covington, Louisiana, 70433, United States

Location

Benchmark Research

Metairie, Louisiana, 70006, United States

Location

Delricht Research

New Orleans, Louisiana, 70115, United States

Location

Delricht Clinical Research

Prairieville, Louisiana, 70769, United States

Location

Centennial Medical Group

Eldridge, Maryland, 21075, United States

Location

Brigham and Women's Hospital

Boston, Massachusetts, 02115, United States

Location

DM Clinical Research

Brookline, Massachusetts, 02445, United States

Location

Great Lakes Research Institute

Southfield, Michigan, 48075, United States

Location

Clinical Research Institute

Minneapolis, Minnesota, 55402, United States

Location

Delricht Research

Gulfport, Mississippi, 39503, United States

Location

The Center for Pharmaceutical Research

Kansas City, Missouri, 64114, United States

Location

Delricht Research

Springfield, Missouri, 65807, United States

Location

Sundance Clinical Research, LLC

St Louis, Missouri, 63141, United States

Location

Delricht Research

Town and Country, Missouri, 63017, United States

Location

Montana Medical Research, Inc

Missoula, Montana, 59808, United States

Location

CCT research/ Methodist Physicians Clinic- Prairie Fields

Fremont, Nebraska, 68025, United States

Location

Velocity Clinical Research

Grand Island, Nebraska, 68803, United States

Location

Meridian Clinical Research, LLC

Lincoln, Nebraska, 68510, United States

Location

Velocity Clinical Research

Omaha, Nebraska, 68134, United States

Location

Papillon Research Centre

Papillion, Nebraska, 68046, United States

Location

Wr-Crcn, Llc

Las Vegas, Nevada, 89113, United States

Location

Las Vegas Clinical Trials

North Las Vegas, Nevada, 89030, United States

Location

IMA Clinical Research

Warren Township, New Jersey, 07059, United States

Location

Velocity Clinical Research- New Mexico

Albuquerque, New Mexico, 87102, United States

Location

IMA Clinical Research

Albuquerque, New Mexico, 87109, United States

Location

Velocity Clinical Research, Syracuse

East Syracuse, New York, 13057, United States

Location

IMA Clinical Research

New York, New York, 10036, United States

Location

Rochester Clinical Research, Inc.

Rochester, New York, 14609, United States

Location

Monroe Biomedical Research

Monroe, North Carolina, 28112, United States

Location

Trial Management Associates, LLC

Wilmington, North Carolina, 28403, United States

Location

CTI Clinical Research Center

Cincinnati, Ohio, 45212, United States

Location

Velocity Clinical Research, Inc

Cincinnati, Ohio, 45219, United States

Location

Velocity Clinical Research

Cincinnati, Ohio, 45242, United States

Location

Velocity Clinical Research - Cincinnati

Cincinnati, Ohio, 45246, United States

Location

Velocity Clinical Research

Cleveland, Ohio, 44122, United States

Location

Tekton Research- Edmond

Edmond, Oklahoma, 73013, United States

Location

Tekton Research Inc

Moore, Oklahoma, 73160, United States

Location

Delricht Research

Tulsa, Oklahoma, 74133, United States

Location

Tekton Research- Yukon

Yukon, Oklahoma, 73099, United States

Location

Velocity Clinical Research, Medford

Medford, Oregon, 97504, United States

Location

Summit Research Headlands LLC

Portland, Oregon, 97210, United States

Location

DM Clinical Research

Philadelphia, Pennsylvania, 19107, United States

Location

Synexus Clinical Research US, Inc

Anderson, South Carolina, 29621, United States

Location

Velocity Clinical Research-Anderson

Anderson, South Carolina, 29621, United States

Location

Delricht Research

Charleston, South Carolina, 29407, United States

Location

Velocity Clinical Research

Columbia, South Carolina, 29204, United States

Location

Velocity Clinical Research, Greenville

Greenville, South Carolina, 29615, United States

Location

Carolina Health Specialists

Myrtle Beach, South Carolina, 29572, United States

Location

Coastal Carolina Research Center

North Charleston, South Carolina, 29464, United States

Location

Spartanburg Medical Research

Spartanburg, South Carolina, 29303, United States

Location

Velocity Clinical Research- Spartanburg

Spartanburg, South Carolina, 29303, United States

Location

Delricht Research

Hendersonville, Tennessee, 37075, United States

Location

Clinical Research Associates, Inc.

Nashville, Tennessee, 37203, United States

Location

Benchmark Research

Austin, Texas, 78705, United States

Location

Tekton Research Inc

Austin, Texas, 78745, United States

Location

Tekton Research - Beaumont

Beaumont, Texas, 77706, United States

Location

PanAmerican Clinical Research, LLC

Brownsville, Texas, 78520, United States

Location

Headlands Research Brownsville

Brownsville, Texas, 78526, United States

Location

Zenos Clinical Research

Dallas, Texas, 75230, United States

Location

Ventavia Research Group

Fort Worth, Texas, 76104, United States

Location

Benchmark Research

Fort Worth, Texas, 76135, United States

Location

DM Clinical Research

Houston, Texas, 77065, United States

Location

DM Clinical Research

Houston, Texas, 77081, United States

Location

Ventavia Research Group

Keller, Texas, 76248, United States

Location

DELRICHT RESEARCH at ZOMNIR FAMILY MEDICINE

McKinney, Texas, 75072, United States

Location

Research Your Health

Plano, Texas, 75093, United States

Location

Be Well Clinical Studies

Round Rock, Texas, 78681, United States

Location

Clinical Trials of Texas, Inc.

San Antonio, Texas, 78229, United States

Location

Diagnostics Research Group

San Antonio, Texas, 78229, United States

Location

Tekton Research -San Antonio

San Antonio, Texas, 78240, United States

Location

DM Clinical Research

Sugar Land, Texas, 77478, United States

Location

DM Clinical Research

Tomball, Texas, 77375, United States

Location

Cope Family Medicine

Bountiful, Utah, 84010, United States

Location

Mountain View Ogden Clinic/CCT Research

Pleasant View, Utah, 84404, United States

Location

JBR Clinical Research

Salt Lake City, Utah, 84107, United States

Location

J. Lewis Research, Inc. / Foothill Family Clinic South

Salt Lake City, Utah, 84121, United States

Location

Health Research of Hampton Roads, Inc.

Newport News, Virginia, 23606, United States

Location

Velocity Clinical Research

Portsmouth, Virginia, 23703, United States

Location

Clinical Research Partners, LLC

Richmond, Virginia, 23226, United States

Location

Medicor Research Inc.

Greater Sudbury, Ontario, P3C 1X3, Canada

Location

Hamilton Medical Research group

Hamilton, Ontario, L8M 1K7, Canada

Location

Milestone Research Inc.

London, Ontario, N5W 6A2, Canada

Location

Red Maple Trials Inc.

Ottawa, Ontario, K1H1E4, Canada

Location

Winterberry Family Medicine

Stoney Creek, Ontario, L8J0B6, Canada

Location

Dr. Anil K. Gupta Medicine Professional Corporation

Toronto, Ontario, M9V 4B4, Canada

Location

Centricity Research Toronto Manna Multispecialty

Toronto, Ontario, M9W 4L6, Canada

Location

Intermed groupe santé

Chicoutimi, Quebec, G7H 7Y8, Canada

Location

Centricity Research Pointe-Claire

Pointe-Claire, Quebec, H9R 4S3, Canada

Location

Manna Research Inc.

Pointe-Claire, Quebec, H9R 4S3, Canada

Location

Q&T Research Sherbrooke Inc.

Sherbrooke, Quebec, J1J 2G2, Canada

Location

Clinique spécialisée en allergie

Québec, G1V 4W2, Canada

Location

Public Health Association.Inc

Aichi, Japan

Location

Tenjin Sogo Clinic

Fukuoka, Japan

Location

Yamasaki Family Clinic - internal medicine

Hyōgo, Japan

Location

Motomachi Takatsuka Naika Clinic - Internal Medicine

Kanagawa, Japan

Location

Arakawa Family Clinic

Nagano, Japan

Location

Koseikai Yotsubashi Clinic - Internal Medicine

Osaka, Japan

Location

Medical Corporation of Yamazaki Neurotology, Rhinolaryngology Clinic

Sapporo, Japan

Location

Dojinkinenkai Meiwa Hospital

Tokyo, Japan

Location

Medical Corporation Asbo Tokyo Asbo Clinic

Tokyo, Japan

Location

Metropolitan Clinic - Internal Medicine

Tokyo, Japan

Location

National Center for Global Health and Medicine

Tokyo, Japan

Location

Shinei Medical Healthcare Clinic

Tokyo, Japan

Location

Barnsley Hospital

Barnsley, United Kingdom

Location

Royal United Hospital Bath NHS Trust - Royal United Hospital

Bath, United Kingdom

Location

Layton Medical Centre

Blackpool, United Kingdom

Location

Dorset Clinical Research Centre (Bournemouth Hospital)

Bournemouth, United Kingdom

Location

Bradford Teaching Hospitals NHS Foundation Trust - Bradford

Bradford, United Kingdom

Location

Lakeside Healthcare

Corby, United Kingdom

Location

Rotherham Doncaster and South Humber NHS Foundation Trust

Doncaster, United Kingdom

Location

University of Dundee - NHS Tayside - Ninewells Hospital & Me

Dundee, United Kingdom

Location

Western General Hospital

Edinburgh, United Kingdom

Location

Royal Devon & Exeter Hospital

Exeter, United Kingdom

Location

CPS Research

Glasgow, United Kingdom

Location

NHS Greater Glasgow & Clyde

Glasgow, United Kingdom

Location

Panthera Biopartners - Glasgow - multispeciality

Glasgow, United Kingdom

Location

Queen Elizabeth University Hospital

Glasgow, United Kingdom

Location

Gloucestershire Hospitals NHS Foundation Trust - Cheltenham

Gloucester, United Kingdom

Location

Velocity Clinical Research High Wycombe

High Wycombe, United Kingdom

Location

University Hospitals of Leicester-Leicester Royal Hospital

Leicester, United Kingdom

Location

Barts Health NHS Trust

London, United Kingdom

Location

Egin Research

London, United Kingdom

Location

Guys and St. Thomas NHS Foundation Trust

London, United Kingdom

Location

Hammersmith Medicines Research (HMR)

London, United Kingdom

Location

Panthera Biopartners - Enfield

London, United Kingdom

Location

Richford Gate Medical Practice

London, United Kingdom

Location

Royal Free London NHS Foundation Trust

London, United Kingdom

Location

St Georges Healthcare NHS Trust - University of London

London, United Kingdom

Location

Manchester University NHS Foundation Trust

Manchester, United Kingdom

Location

Bioluminux Clinical Research

Milton Keynes, United Kingdom

Location

Stemax Consult Healthcare Services Ltd

Milton Keynes, United Kingdom

Location

Newcastle University - Institute of Cellular Medicine (ICM)

Newcastle, United Kingdom

Location

Velocity Clinical Research

North London, United Kingdom

Location

Accellacare North London

Northwood, United Kingdom

Location

Nottingham University Hospitals NHS Trust - Queens Medical Centre (QMC) Campus

Nottingham, United Kingdom

Location

Wansford and Kings Cliffe Practice

Peterborough, United Kingdom

Location

University Hospitals Plymouth NHS Trust

Plymouth, United Kingdom

Location

Southampton General Hospital - Portsmouth Research Hub

Portsmouth, United Kingdom

Location

GST NHS Found

Preston, United Kingdom

Location

Panthera Biopartners Preston

Preston, United Kingdom

Location

Panthera Biopartners - Manchester - multispeciality

Rochdale, United Kingdom

Location

Warrington and Halton Teaching hospitals NHS Foundation Trust - Halton General Hospital

Runcorn, United Kingdom

Location

Panthera Biopartners - Sheffield - multispeciality

Sheffield, United Kingdom

Location

Royal Victoria Infirmary

Sheffield, United Kingdom

Location

Southampton University Hospital NHS Foundation Trust

Southampton, United Kingdom

Location

Pier Health Group

Weston-super-Mare, United Kingdom

Location

Weymouth Research Hub

Weymouth, United Kingdom

Location

North Wales Clinical Research Centre

Wrexham, United Kingdom

Location

Related Publications (1)

  • Chalkias S, Dennis P, Petersen D, Radhakrishnan K, Vaughan L, Handforth R, Rossi A, Wahid R, Edwards DK, Feng J, Deng W, Zhou H, De Windt E, Urdaneta V, Paila Y, Girard B, Faust SN, Walsh SR, Cosgrove CA, Miller J, Das R. Efficacy, immunogenicity, and safety of a next-generation mRNA-1283 COVID-19 vaccine compared with the mRNA-1273 vaccine (NextCOVE): results from a phase 3, randomised, observer-blind, active-controlled trial. Lancet Infect Dis. 2025 Nov;25(11):1230-1242. doi: 10.1016/S1473-3099(25)00236-1. Epub 2025 Jul 7.

MeSH Terms

Conditions

COVID-19Coronavirus InfectionsVirus Diseases

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract Diseases

Results Point of Contact

Title
Moderna WeCare Team
Organization
ModernaTX, Inc.

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 13, 2023

First Posted

April 18, 2023

Study Start

March 28, 2023

Primary Completion

April 12, 2025

Study Completion

April 12, 2025

Last Updated

May 1, 2026

Results First Posted

May 1, 2026

Record last verified: 2026-04

Locations