Low-Interventional cohort study of Myocarditis/Pericarditis associated with COMIRNATY in persons less than 21 years of age (Phase 4 Cohort Study) - The reason for this research study is to learn more about myocarditis and pericarditis either following vaccination with any Pfizer-BioNTech COVID-19 Vaccine (COMIRNATY®) or following a COVID-19 infection, including Multi-Inflammatory System in Children (MIS-C). Myocarditis is inflammation of the muscle of the heart, and pericarditis is inflammation of the tissue that forms a sac around the heart. Sponsor: Pfizer
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Post-marketing data for mRNA COVID-19 vaccines suggest increased risks of myocarditis/pericarditis, particularly within 7 days following a second dose of the vaccine. However, there are currently limited data on possible long-term outcomes associated with post-vaccine myocarditis/pericarditis.
The purpose of this cohort study is to improve our understanding of the potential long-term health outcomes associated with myocarditis/pericarditis following vaccination with COMIRNATY® and how those outcomes compare to those of COVID-19 or MIS-C related myocarditis/pericarditis.
Males or Females between the ages of 0 years to 21 years who either:
This study will be explained to you and/or your parent/guardian in detail by one of the study investigators. Once your questions have been answered, you and/or your parent/guardian will be asked to sign an assent form/informed consent form to enter the study.
The study team will collect information that your doctors have performed as part of your regular care, including laboratory test results and cardiac testing reports, such as echocardiograms (echo), electrocardiograms (ECG), cardiac MRIs, exercise stress tests, ambulatory monitoring, and troponin values. You may also have certain tests, procedures and assessments that are required by the study.
You will also be asked to complete simple questionnaires called Patient-Reported Outcomes Measures (PROMs) during some of your visits. These PROMs will ask about your physical, mental, and social health.
The study team will contact you to conduct a brief annual medical history once a year for up to 5 years. We will ask about any operations, tests or times that you/your child was in the hospital, any medications they are taking, and if they have developed any health problems.
If you are enrolled after you came to the hospital with your symptoms, the schedule of tests will begin when you are enrolled. Your doctor will tell you which specific tests will be required.
You will be in the study for up to 5 years following your myocarditis/pericarditis diagnosis.
For most participants in this study, there will be no direct benefit. However, the results of the study may improve our understanding of the long-term outcomes after myocarditis/pericarditis temporally associated with the COMIRNATY® vaccine. It may also serve to help improve care of children, adolescents, and young adults with similar problems in the future.
You may experience risks or discomforts from the procedures that are required by the study:
You will not have to pay for any research tests, procedures or visits that are required by the study.