Clinical Trial

A Study on the Immune Response and Safety of a Combined Vaccine Against Diphtheria, Tetanus and Acellular Pertussis (dTpa) in Healthy Japanese Adolescents Aged 11 Years to <13 Years

Recruiting Phase 3
View on ClinicalTrials.gov →
Summary
The purpose of the study is to assess the immune response, reactogenicity and safety of a booster dose of dTpa vaccine 1 month after vaccination in healthy Japanese participants aged 11 to \<13 years.
Protocol Amendment History 2 changes
critical Recruitment opened 2026-07-09
notable Trial sites expanded: 0 -> 9 locations 2026-07-09
Trial Details
NCT Number NCT07596173
Lead Sponsor GlaxoSmithKline
Conditions Diphtheria-Tetanus-acellular Pertussis Vaccines
Enrollment 85 participants
Start Date 2026-06-29
Primary Completion 2026-10-14 (estimated)
Study Completion 2026-10-14 (estimated)
Updated on ClinicalTrials.gov 2026-07-08