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Study to Evaluate the Safety, Reactogenicity, and Effectiveness of mRNA-1273.214 SARS-CoV-2 (COVID-19) Vaccine in Infants

Phase 2
Terminated
Conditions
SARS-CoV-2
Interventions
Registration Number
NCT05584202
Lead Sponsor
ModernaTX, Inc.
Brief Summary

The study will evaluate the safety, tolerability, reactogenicity, and effectiveness of mRNA-1273.214 severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccine in infants aged 12 weeks to \< 6 months.

Detailed Description

The study will be conducted in 2 parts. Part 1 will be open-label and evaluate 2 dose levels. The dose level selected from Part 1 will be further evaluated in Part 2, which will be blinded and randomized. This pediatric study is intended to confirm safety and effectiveness of mRNA-1273.214 in infants between 12 weeks to \< 6 months of age by comparing the immune response of infants in this study to adults (\>18 years of age) enrolled in the mRNA-1273-P301 study \[NCT04470427\]).

Recruitment & Eligibility

Status
TERMINATED
Sex
All
Target Recruitment
68
Inclusion Criteria
  • Participant is male or female, between 2 and <6 months of age at the time of consent (Screening Visit), who is in good general health, in the opinion of the investigator, based on review of medical history and screening physical examination.

    1. Participant must be at least 12 weeks completed age and must not have completed 6 months at the time of administration of first dose.
    2. If the participant has a chronic, stable disease, they may be eligible to enroll in Part 2, but ineligible for Part 1. The chronic condition (for example, gastroesophageal reflux disease) should be stable, per investigator assessment, so that the participant can be considered eligible for inclusion in Part 2.
  • Participant was born at ≥37 weeks gestation (Part 1) or ≥34 weeks gestation (Part 2), with a minimum birth weight of 2.5 kilograms (kg), without fetal growth restriction, and the participant's height and weight are both at or above the second percentile for age according to the Centers for Disease Control and Prevention/World Health Organization Child Growth Standard at the Screening Visit.

  • In the investigator's opinion, the parent(s)/legally authorized representative(s) understand and are willing and physically able to comply with protocol-mandated follow-up, including all procedures, and provide written informed consent.

Key

Exclusion Criteria
  • Participant has a known history of SARS-CoV-2 infection within 2 weeks prior to administration of study drug or has a known close contact in the past 2 weeks to someone diagnosed with SARS-CoV-2 infection or coronavirus disease 2019 (COVID-19). Participants may be rescreened after 14 days provided that they remain asymptomatic.

  • Participant is acutely ill or febrile 72 hours prior to or at the Screening Visit. Fever is defined as a body temperature ≥38.0°Celcius/≥100.4°Farenheit. Participants who meet this criterion may have visits rescheduled within the relevant study visit windows. Afebrile participants with minor illnesses can be enrolled at the discretion of the investigator.

  • Participant has previously been administered an investigational or approved CoV (for example, SARS-CoV-2, SARS-CoV, Middle East respiratory syndrome [MERS]-CoV) vaccine.

  • Participant has undergone treatment with investigational or approved agents for prophylaxis against COVID-19 (for example, receipt of SARS-CoV-2 monoclonal antibodies) within 90 days prior to enrollment.

  • Participant has a known hypersensitivity to a component of the vaccine or its excipients. Hypersensitivity includes, but is not limited to, anaphylaxis or immediate allergic reaction of any severity to any of the components of messenger ribonucleic acid (mRNA) COVID-19 vaccines (including polyethylene glycol or immediate allergic reaction of any severity to polysorbate).

  • Participant has a medical, psychiatric, or occupational condition, that, according to the investigator's judgment, may pose additional risk as a result of participation, interfere with safety assessments, or interfere with interpretation of results.

  • Participant has a history of diagnosis or condition that, in the judgment of the investigator, may affect study endpoint assessment or compromise participant safety.

  • Participant has received the following:

    1. Any routine vaccination with inactivated or live vaccine(s) within 14 days prior to first or second vaccination or plans to receive such a vaccine within 14 days of any study vaccination.
    2. Systemic immunosuppressants or immune-modifying drugs (including maternal use during pregnancy or lactation) for >14 days in total within 6 months prior to the day of enrollment (for corticosteroids, ≥ 1 milligrams (mg)/kg/day or, if participant weighs >10 kg: ≥10 mg/day prednisone equivalent). Participants may have visits rescheduled for enrollment if they no longer meet this criterion within the Screening Visit window. Inhaled, nasal, and topical steroids are allowed.
    3. Intravenous or subcutaneous blood products (red blood cells, platelets, immunoglobulins) within 3 months prior to enrollment.
  • Participant has participated in an interventional clinical study within 28 days prior to the Screening Visit or plans to do so while participating in this study, or maternal participation in an interventional clinical study during pregnancy.

Note: Other inclusion and exclusion criteria may apply.

Study & Design

Study Type
INTERVENTIONAL
Study Design
SEQUENTIAL
Arm && Interventions
GroupInterventionDescription
Part 1: mRNA-1273.214 Dose AmRNA-1273.214Participants will receive 2 doses of mRNA-1273.214 Dose A by intramuscular (IM) injection approximately 8 weeks apart (Day 1 and Day 57).
Part 1: mRNA-1273.214 Dose BmRNA-1273.214Participants will receive 2 doses of mRNA-1273.214 Dose B by IM injection approximately 8 weeks apart (Day 1 and Day 57).
Part 2: mRNA-1273.214mRNA-1273.214Participants will receive 2 doses of mRNA-1273.214 by IM injection approximately 8 weeks apart (Day 1 and Day 57).
Part 2: PlaceboPlaceboParticipants will receive 2 doses of placebo by IM injection approximately 8 weeks apart (Day 1 and Day 57).
Primary Outcome Measures
NameTimeMethod
Geometric Mean Titer (GMT) of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Antibodies Against Omicron VariantDay 85 (28 days after the second vaccination)
Number of Participants with Solicited Local and Systemic Adverse Reactions (ARs)Up to Day 64 (7 days after each vaccination)
Number of Participants with Unsolicited Adverse Events (AEs)Up to Day 85 (28 days after each vaccination)
Number of Participants with Serious AEs (SAEs), Medically Attended AEs (MAAEs), AEs Leading to Withdrawal, and AEs of Special Interest (AESIs)Up to Day 422
Seroresponse Rate Against SARS-CoV-2 Omicron VariantDay 85 (28 days after the second vaccination)
Secondary Outcome Measures
NameTimeMethod
GMT of SARS-CoV-2 Antibodies Against Omicron Variant (Part 1)Day 85 (28 days after the second vaccination)
Seroresponse Rate Against SARS-CoV-2 Original Strain (Part 2)Day 85 (28 days after the second vaccination)
GMT of SARS-CoV-2 Antibodies Against Omicron Variant (Part 2)Day 85 (28 days after the second vaccination)
GMT of SARS-CoV-2 Antibodies Against Original Strain (Part 2)Day 85 (28 days after the second vaccination)
Seroresponse Rate Against SARS-CoV-2 Omicron Variant (Part 2)Day 85 (28 days after the second vaccination)

Trial Locations

Locations (37)

South Texas Clinical Research - Corpus Christi

🇺🇸

Corpus Christi, Texas, United States

Cedar Health Research - Dedicated Research Facility

🇺🇸

Dallas, Texas, United States

Eclipse Clinical Research

🇺🇸

Tucson, Arizona, United States

Meridian Clinical Research (Washington) - PPDS

🇺🇸

Washington, District of Columbia, United States

Kissimmee Clinical Research

🇺🇸

Kissimmee, Florida, United States

Excellence Medical and Research LLC

🇺🇸

Miami Gardens, Florida, United States

MedPharmics - Platinum - PPDS

🇺🇸

Lafayette, Louisiana, United States

UMass Memorial Medical Center

🇺🇸

Worcester, Massachusetts, United States

Be Well Clinical Studies

🇺🇸

Lincoln, Nebraska, United States

Child Health Care Associates

🇺🇸

East Syracuse, New York, United States

Velocity Clinical Research (Hastings - Nebraska) - PPDS

🇺🇸

Wilmington, North Carolina, United States

Tanner Clinic

🇺🇸

Layton, Utah, United States

Wee Care Pediatrics

🇺🇸

Syracuse, Utah, United States

PI-Coor Clinical Research LLC

🇺🇸

Burke, Virginia, United States

Emory University School of Medicine

🇺🇸

Atlanta, Georgia, United States

UPMC University Center

🇺🇸

Pittsburgh, Pennsylvania, United States

Acevedo Clinical Research

🇺🇸

Miami, Florida, United States

D&amp;H National Research Centers

🇺🇸

Miami, Florida, United States

Suncoast Research Associates LLC - ERN - PPDS

🇺🇸

Miami, Florida, United States

Clinical Research Institute, Inc

🇺🇸

Minneapolis, Minnesota, United States

SeraCollection Research Services LLC

🇺🇸

Montebello, California, United States

Madera Family Medical Group

🇺🇸

Madera, California, United States

Trinity Clinical Research, LLC - Bessemer

🇺🇸

Bessemer, Alabama, United States

Center For Clinical Trials LLC

🇺🇸

Paramount, California, United States

Stony Brook University Medical Center

🇺🇸

Stony Brook, New York, United States

DM Clinical Research - Kool Kids Pediatrics - ERN - PPDS

🇺🇸

Houston, Texas, United States

Advances In Health Inc

🇺🇸

Pearland, Texas, United States

Victoria Clinical Research Group

🇺🇸

Port Lavaca, Texas, United States

Medical Research Partners- Ammon

🇺🇸

Ammon, Idaho, United States

University of Florida Jackonsville

🇺🇸

Jacksonville, Florida, United States

Prohealth Research Center

🇺🇸

Doral, Florida, United States

KM International Research Operation - Saint Cloud

🇺🇸

Saint Cloud, Florida, United States

UAB Pediatrics

🇺🇸

Birmingham, Alabama, United States

Children's Hospital Colorado

🇺🇸

Aurora, Colorado, United States

Clinical Research Partners, LLC

🇺🇸

Richmond, Virginia, United States

PAS Research

🇺🇸

Tampa, Florida, United States

Coastal Pediatric Research

🇺🇸

Charleston, South Carolina, United States

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