Diphtheria Immunisation (Healthy Volunteers) Clinical Trial
Official title:
Safety and Immunogenicity of an Investigational Tetanus Toxoid, Reduced Diphtheria Toxoid, and Acellular Pertussis Adsorbed (Tdap) Vaccine in Young Adults
The primary objectives of this study are: - To describe the safety profile of each of the investigational vaccine formulations for all participants - To describe the humoral and cell-mediated immune responses to all of the investigational vaccine formulations - To evaluate the dose response to vaccine components - To describe the magnitude, quality, and longevity of immune responses to each of the investigational vaccine formulations
Study duration per participant is approximately 1 year, which will include a safety follow-up contact at 12 months after vaccination ;