# Myopericarditis After Messenger Ribonucleic Acid (mRNA) COVID-19 Vaccination in Children 5-11 Years Old

> **NCT05186571** · — · UNKNOWN · sponsor: **Rigshospitalet, Denmark** · enrollment: 350000 (estimated)

## Conditions studied

- Myopericarditis
- Myocarditis
- Vaccination; Complications
- COVID-19 Pandemic
- SARS-CoV2 Infection

## Interventions

- **BIOLOGICAL:** Pfizer-BioNTech mRNA COVID-19 vaccination

## Key facts

- **NCT ID:** NCT05186571
- **Lead sponsor:** Rigshospitalet, Denmark
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** UNKNOWN
- **Start date:** 2021-12-01
- **Primary completion:** 2022-03-01
- **Final completion:** 2022-04-28
- **Target enrollment:** 350000 (ESTIMATED)
- **Last updated:** 2022-01-31

## Collaborators

- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05186571

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05186571, "Myopericarditis After Messenger Ribonucleic Acid (mRNA) COVID-19 Vaccination in Children 5-11 Years Old". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT05186571. Licensed CC0.

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