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Active, not recruiting Phase 4 Interventional

A Study to Learn About The COVID-19 (Study) Vaccine (Called COMIRNATY) in People That Are Less Than 21 Years Old.

ClinicalTrials.gov ID: NCT05295290

Public ClinicalTrials.gov record NCT05295290. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 1, 2026, 5:46 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

LOW INTERVENTIONAL COHORT STUDY OF MYOCARDITIS/PERICARDITIS ASSOCIATED WITH COMIRNATY IN PERSONS LESS THAN 21 YEARS OF AGE

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The purpose of this study is to learn about the safety and effects of the vaccine (called COMIRNATY) for the potential prevention of COVID-19. This study is seeking participants who: 1. Are age \<21 years. 2. Have presentation to participating medical center with evaluation in Emergency Room and/or hospitalization. 3. Received any dose(s) of COMIRNATY within 21 days of symptom onset. 4. Meet criteria of Centers for Disease Control and Prevention case definition of probable or confirmed myocarditis/pericarditis 5. Are capable of giving signed informed consent/assent (by parents/legal guardians of minors and/or patients), which includes compliance with the requirements and restrictions listed in the Informed Consent/Assent Document and in this protocol OR meets criteria for waiver of consent. This study will examine the potential long-term effects associated with myocarditis/pericarditis following vaccination with COMIRNATY. The association of myocarditis/pericarditis in participants who received the study vaccine (COMIRNATY) compared with those associated with COVID-19 will also be examined. This will help us determine if COMIRNATY is safe and effective, and if there is a myocarditis/pericarditis association that should be noted. Participants will take part in this study for up to 5 years. During this time, they will receive complete cardiac imaging tests, and have follow up visits per guidance stated in the study protocol.

Study identification

NCT ID
NCT05295290
Recruitment status
Active, not recruiting
Study type
Interventional
Phase
Phase 4
Lead sponsor
Pfizer
Industry
Enrollment
319 participants

Conditions and interventions

Conditions

Interventions

Diagnostic Test

Eligibility (public fields only)

Age range
0 Years to 20 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Nov 20, 2022
Primary completion
Apr 1, 2029
Completion
Apr 1, 2029
Last update posted
May 6, 2026

2022 – 2029

United States locations

U.S. sites
18
U.S. states
14
U.S. cities
17
Facility City State ZIP Site status
Childrens Hospital Los Angeles Los Angeles California 90027
Valley Children's Hospital Madera California 93636
Connecticut Children's Medical Center Hartford Connecticut 06106
Childrens National Hospital Washington D.C. District of Columbia 20010
Memorial Healthcare System Hollywood Florida 33021
Children's Healthcare of Atlanta - Arthur M. Blank Hospital Atlanta Georgia 30329
Indiana University School of Medicine Indianapolis Indiana 46202
Riley Hospital for Children at IU Health Indianapolis Indiana 46202
Children's Hospital New Orleans Louisiana 70118
Boston Children's Hospital Boston Massachusetts 02115
University of Michigan Health Center Ann Arbor Michigan 48109
Children's Hospital of Michigan Detroit Michigan 48201
Childrens Mercy Kansas City Kansas City Missouri 64108
Northwell Health-Cohen Children's Medical Center New Hyde Park New York 11042
Columbia University Medical Center New York New York 10032
Cincinnati Children's Hospital Medical Center Cincinnati Ohio 45229
The Children's Hospital of Philadelphia Philadelphia Pennsylvania 19104
MUSC Summey Medical Pavilion North Charleston South Carolina 20406

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT05295290, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted May 6, 2026 · Synced Sep 1, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT05295290 live on ClinicalTrials.gov.

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