Clinical Trial: A Phase II Clinical Trial of Absorbed Acellular Pertussis (Two-Component) Diphtheria-Tetanus Combined Vaccine (For Adults and Adolescents)

U.S., Oct. 27 -- ClinicalTrials.gov registry received information related to the study (NCT07894055) titled 'A Phase II Clinical Trial of Absorbed Acellular Pertussis (Two-Component) Diphtheria-Tetanus Combined Vaccine (For Adults and Adolescents)' on Aug. 04.

Brief Summary: the immunogenicity and safety of different dosages of adsorbed acellular pertussis (two-component) diphtheria-tetanus combined vaccine

Study Start Date: Aug. 12

Study Type: INTERVENTIONAL

Condition: Pertussis (Whooping Cough) Diphtheria Tetanus

Intervention: BIOLOGICAL: Tdap vaccine

intramuscular injection only, and the preferred inoculation site is the deltoid muscle of the upper arm.

BIOLOGICAL: Placebo

intramuscular injection only, and the preferred inocula...