This study is to assess the post-marketing safety of BNT162b2 products using nationwidepopulation-based database in Republic of Korea.
This study is a retrospective, non-interventional, observational study using Korean
Disease Control and Prevention Agency-COVID-19-National Health Insurance Service
(K-COV-N) database that includes COVID-19 vaccination/infection and claims data in Korean
population. For the primary objective, cohort and self-controlled design will be used for
measure of occurrence and measure of association, respectively. For the secondary
objective, cohort design will be used for measure of occurrence.
Primary objective:
- To describe the frequency and estimate the incidence ratio of adverse events of
special interest (AESIs) following exposure to Comirnaty Injection among individuals
aged 6 months or older in the Republic of Korea
- To evaluate the relative risk of AESIs following exposure to Comirnaty Injection
among individuals aged 6 months or older in the Republic of Korea, using a
self-controlled case series (SCCS) design
Secondary objective:
- To describe the frequency and estimate the incidence ratio of severe COVID-19
outcomes (COVID-19 hospital admission, COVID-19 intensive care unit [ICU] admission,
and COVID-19 death).
Biological: Tozinameran (BNT162b2)
1. 12 years or older
- Primary series: 2 doses, 30 μg each, administered 21 days apart
- Booster shot (dose 3): 1 dose, 30 μg after ≥ 6 months from the second shot
2. 5 to 11 years of age
- Primary series: 2 doses, 10 μg each, administered 21 days apart
- Booster shot (dose 3): 1 dose, 10 μg after ≥ 6 months from the second shot
3. 6 months to 4 years of age
- Primary series: 3 doses (2 doses of 3 μg each, administered 21 days apart,
followed by 1 dose after ≥8 weeks)
Biological: Tozinameran (BNT162b2) / Riltozinameran (BNT162b2 OMI BA.1)
1. 12 years or older
- Single booster dose, 15/15 μg, administered after ≥3 months after primary series
Biological: Tozinameran (BNT162b2) / Famtozinameran (BNT162b2 OMI BA.4-5)
1. 12 years or older
- Single booster dose, 15/15 μg administered after ≥3 months after primary series
1. Primary Objectives 1-1. Measure of Occurrence Inclusion Criteria For the measure of
occurrence, analytical populations will include following individuals,
- Who meet the predefined criteria for each study population.
- With enrollment in the national insurance during the observation period, as
well as during the clean window prior to the start of the observation period.
Exclusion Criteria For the measure of occurrence, analytical populations will
exclude following individuals,
- With diagnosis of AESI during the AESI-specific clean window; or
- With diagnosis of AESI between first dose and second/third dose of primary
series when analyzing for the second/third dose.
1-2. Measure of Association Inclusion Criteria For the measure of association,
analytical populations will include following individuals,
- Who meet the predefined criteria for each study population.
- With enrollment in the national insurance during the observation period, as
well as during the clean window prior to the start of the observation period;
and
- Who had incident AESI during the observation period. Exclusion Criteria For the
measure of association, analytical populations will exclude following
individuals,
- Who do not have both risk and control window time. If an individual disenrolls,
dies, or reaches the end of the study period during the risk window prior to
accumulating any control window time, he/she will be excluded; or
- With a diagnosis of AESI during the AESI-specific clean window.
2. Secondary Objective Inclusion Criteria For the secondary objective, the study
populations will include following individuals,
- Who meet the predefined criteria for each study population. Exclusion Criteria
- None
Pfizer Korea
Seoul, Korea, Republic of
Pfizer CT.gov Call Center
1-800-718-1021
ClinicalTrials.gov_Inquiries@pfizer.com
Pfizer CT.gov Call Center, Study Director
Pfizer