COVID vaccine trial for babies halted early – Here's what we know

NCT ID NCT05584202

Terminated ⭐️ VACCINE ⭐️ Sponsor: ModernaTX, Inc. Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at whether the mRNA-1273.214 COVID-19 vaccine is safe and works in infants as young as 12 weeks to under 6 months old. It was a small, early-stage trial that was stopped before completion. The main goal was to check for side effects like fever, fussiness, and injection site reactions.

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Conditions

The condition(s) this trial relates to.

Coronavinae infectious disease viral infectious disease COVID-19 prevention target

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

SARS-COV-2

Contacts and locations

Locations

Acevedo Clinical Research

Miami, Florida, 33142-2946, United States
Advances In Health Inc

Pearland, Texas, 77584, United States
Be Well Clinical Studies

Lincoln, Nebraska, 68516, United States
Cedar Health Research - Dedicated Research Facility

Dallas, Texas, 75251, United States
Center For Clinical Trials LLC

Paramount, California, 90723, United States
Child Health Care Associates

East Syracuse, New York, 13057, United States
Children's Hospital Colorado

Aurora, Colorado, 80045, United States
Clinical Research Institute, Inc

Minneapolis, Minnesota, 55402, United States
Clinical Research Partners, LLC

Richmond, Virginia, 23226, United States
Coastal Pediatric Research

Charleston, South Carolina, 29414, United States
D&H National Research Centers

Miami, Florida, 33155, United States
DM Clinical Research - Kool Kids Pediatrics - ERN - PPDS

Houston, Texas, 77065-5471, United States
Eclipse Clinical Research

Tucson, Arizona, 85745, United States
Emory University School of Medicine

Atlanta, Georgia, 30322, United States
Excellence Medical and Research LLC

Miami Gardens, Florida, 33169, United States
KM International Research Operation - Saint Cloud

Saint Cloud, Florida, 34769, United States
Kissimmee Clinical Research

Kissimmee, Florida, 34741, United States
Madera Family Medical Group

Madera, California, 93637, United States
MedPharmics - Platinum - PPDS

Covington, Louisiana, 70433-7237, United States
MedPharmics - Platinum - PPDS

Lafayette, Louisiana, 70508, United States
Medical Research Partners- Ammon

Ammon, Idaho, 83406, United States
Meridian Clinical Research (Washington) - PPDS

Washington D.C., District of Columbia, 20016, United States
PAS Research

Clearwater, Florida, 33756, United States
PAS Research

Tampa, Florida, 33613, United States
PI-Coor Clinical Research LLC

Burke, Virginia, 22015, United States
Prohealth Research Center

Doral, Florida, 33166, United States
SeraCollection Research Services LLC

Montebello, California, 90640, United States
South Texas Clinical Research - Corpus Christi

Corpus Christi, Texas, 78404, United States
Stony Brook University Medical Center

Stony Brook, New York, 11794, United States
Suncoast Research Associates LLC - ERN - PPDS

Miami, Florida, 33173, United States
Tanner Clinic

Layton, Utah, 84041, United States
Trinity Clinical Research, LLC - Bessemer

Bessemer, Alabama, 35022, United States
UAB Pediatrics

Birmingham, Alabama, 35233, United States
UMass Memorial Medical Center

Worcester, Massachusetts, 01655, United States
UPMC University Center

Pittsburgh, Pennsylvania, 15123, United States
University of Florida Jackonsville

Jacksonville, Florida, 32209, United States
Velocity Clinical Research (Hastings - Nebraska) - PPDS

Wilmington, North Carolina, 28401, United States
Victoria Clinical Research Group

Port Lavaca, Texas, 77979, United States
Wee Care Pediatrics

Syracuse, Utah, 84075, United States

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