Cardiac Manifestation in Adolescent After Pfizer COVID-19 Injection in Thailand

Study Overview
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Brief Summary
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Rationale Recently, a CDC advisory Committee on Immunization Practices identified a likely association between the 2 COVID-19 mRNA vaccines from Pfizer-BioNTech and Moderna and cases of myocarditis and pericarditis. For the cardiovascular system, 4863 adverse events (AEs) were reported from the Pfizer vaccine. Common findings observed with vaccines under study were tachycardia(16.41%), flushing (12.17%), hypertension (5.82%), hypotension (3.6%), and increased heart rate (9.03%). In this study we characterized, classified, evaluate the dynamic of cardiac function and ECG abnormality after the Pfizer vaccine injection. This is a prospective cohort study. All participants aged 13-18 years old and above who visited the second dose Pfizer covid-19 vaccine injection to determine cardiac manifestation. Methods for analyzing research data The data will be collected from students enrollment at Kong thabbok upatham changkol kho so tho bo school and Wachirathamsatit school. The participant's history, physical exam, and laboratory data will be reviewed and data will be extracted based on the case record form (CRF). All data will be stored securely and analyzed using the SPSS® Statistics Version 23 developed by IBM®. Data entry will be carried out using coding and verification. Quantitative data will be expressed as mean with standard deviation (SD) or median (IQR) and qualitative data will be presented as a number of observations with percentage (%). Descriptive statistics will be used to summarize the baseline values and demographic data. All p-values will be derived using the 2-tailed testing, and statistical significance will be set at 0.05 probability. All the categorical variables will be analyzed using the chi-square (x2) or Fisher's exact test whichever is appropriate. Normality of the distribution will be tested for the continuous variable using the Kolmogorov- Smirnov test. All the variables with normal distributions will be compared using the independent t-test and will be reported as mean ± standard deviation (SD). The variables that do not pass the normality test will be compared by means of the Mann-Whitney U test and will be reported as the median and interquartile range (IQR).

Detailed Description
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Data Collection Methods Participants' demographics will be collected at baseline using case record form. Laboratory tests include: at 3 clinical visits (Baseline, Day3, Day7 and Day 14 (optional if have cardiac manifestation) after 2nd dose of Pfizer COVID-19 vaccine) 2.1. Cardiac biomarker (Troponin-T, CK-MB) 2.2. Echocardiography 2.3. ECG (Electrocardiography) After getting approval from the Ethics Committee and before the start of the trial, the study team informed the interesting participants about the study by invitation letter with ZOOM or line meeting. Informed consent printed to the parents who interested in this project and bring to the team investigator before enrollment. A contact address and phone number will be provided for the interesting participants to call for more information about the study.

Official Title
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Cardiac Manifestation in Adolescent After Pfizer COVID-19 Injection in Thailand

Conditions
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Covid-19 Vaccine

Intervention / Treatment
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* Diagnostic Test: Diagnostic of ECG


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Age 13-18 years old Both males and females Received 1st dose Pfizer COVID-19 vaccine injection Exclusion Criteria: Unable to obtain written informed consent from the participants or their legal representatives History of cardiomyopathy, tuberculous pericarditis, and constrictive pericarditis Severe allergic reaction to COVID-19 vaccine

Ages Eligible for Study
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Minimum Age: 13 Years
Maximum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Arms and Interventions

| Intervention/Treatment |
| --- |
|Diagnostic Test: Diagnostic of ECG|All participants who enrolled in the study will be performed ECG, cardiac enzyme and echocardiography|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Number and percentage of participant with cardiac manifestation after Pfizer COVID-19 vaccine injection at baseline | cardiac manifestation defined as sinus tachycardia, hypertension at baseline | Day 0 | 
| Number and percentage of participant with cardiac manifestation after Pfizer COVID-19 vaccine injection at day 3 | cardiac manifestation defined as sinus tachycardia, hypertension at day 3 | Day 3 | 
| Number and percentage of participant with cardiac manifestation after Pfizer COVID-19 vaccine injection at day 7 | cardiac manifestation defined as sinus tachycardia, hypertension at day 7 | Day 7 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Number and percentage of participant with Myocarditis after Pfizer COVID-19 vaccine injection at baseline | frequency (%) of participant with myocarditis at baseline | Day 0 | 
| Number and percentage of participant with Myocarditis after Pfizer COVID-19 vaccine injection at day 3 | frequency (%) of participant with myocarditis at day 3 | Day 3 | 
| Number and percentage of participant with Myocarditis after Pfizer COVID-19 vaccine injection at day 7 | frequency (%) of participant with myocarditis at day 7 | Day 7 | 
| Number and percentage of participant with pericarditis after Pfizer COVID-19 vaccine injection at baseline | frequency (%) of participant with pericarditis at baseline | Day 0 | 
| Number and percentage of participant with pericarditis after Pfizer COVID-19 vaccine injection at day 3 | frequency (%) of participant with pericarditis at day 3 | Day 3 | 
| Number and percentage of participant with pericarditis after Pfizer COVID-19 vaccine injection at day 7 | frequency (%) of participant with pericarditis at day 7 | Day 7 | 
| Number and percentage of participant abnormal cardiac biomarker after Pfizer COVID-19 vaccine injection at baseline | frequency (%) of participant with abnormal cardiac biomarker (Troponin and CKMB) at baseline | Day 0 | 
| Number and percentage of participant abnormal cardiac biomarker after Pfizer COVID-19 vaccine injection at day 3 | frequency (%) of participant with abnormal cardiac biomarker (Troponin and CKMB) at day 3 | Day 3 | 
| Number and percentage of participant abnormal cardiac biomarker after Pfizer COVID-19 vaccine injection at day 7 | frequency (%) of participant with abnormal cardiac biomarker (Troponin and CKMB) at day 7 | Day 7 | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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pfizer-BioNTech Covid-19 vaccine, adult, Thailand, myocarditis, cardiac manifestation, Covid-19 vaccine