CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 25 enrolled
Drug / intervention
COMIRNATY intramuscular injectionbiological
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT06130410
NCT06130410N/ACompleted

COMIRNATY Intramuscular Injection for 6 Months to 4 Years Old (Monovalent: Omicron XBB.1.5) Special Investigation for Booster Immunization in Children Aged 6 Months to 4 Years

Pfizer·observational·Posted Nov 14, 2023·Updated Jul 14, 2025

In Brief

An observational study evaluating COMIRNATY intramuscular injection for SARS-CoV-2 and COVID-19. Completed, enrolled 25 participants across 1 site.

Detailed Summary

The purpose of this post-marketing study is to assess the safety of Comirnaty monovalent XBB.1.5. for booster vaccination children ages 6 months though 4 years under actual use medical practice.

Study Details

Study Typeobservational
Allocation--
Masking--
Primary Purpose--
ConditionsSARS-CoV-2, COVID-19
CountriesJapan
Collaborators--

Timeline

N/ACompletedFinished
202420252026
First PostedNov 14, 2023
Enrollment StartMar 6, 2024
Primary CompletionJul 26, 2024
TodayJul 2, 2026
Enrollment to primary: 5 monthsPosted 2.6 years ago

Interventions

COMIRNATY intramuscular injectionbiological

Booster injection in the muscle, 1 dose