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First received: May 13, 2026

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

Study Status: COMPLETED

Recruit Status: COMPLETED

Condition: Diphtheria-Tetanus-acellular Pertussis Vaccines

Study Type: INTERVENTIONAL


Official Title: A Phase 3, Non-randomized, Single-arm, Open-label Study to Assess the Immunogenicity, Safety and Reactogenicity of Combined Reduced-antigen-content Diphtheria, Tetanus and Acellular Pertussis (dTpa) V

Brief 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 \

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