A Combined Tdap Vaccine Used As A Booster Compared To Licensed Td Vaccine
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A Phase III, Observer-blinded Randomised, Multi-centre Clinical Study of the Safety, Immunogenicity and Consistency of Three Manufacturing Lots of GSK Biologicals' Candidate Tdap Vaccine as Compared to a US-licensed Td Vaccine When Given as a Booster Dose to Healthy Adolescents (10-18 Years of Age)
Study Start Date
Primary Completion Date
Study Completion Date
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Ages Eligible for Study:
10 Years to 18 Years (Child, Adult)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
Healthy adolescents with history of completed routine vaccination against diphtheria, tetanus, and pertussis (DTP).
Use of any other investigational drug or vaccine 30 days preceding study vaccination.
Chronic administration of immunosuppressants.
Administration of pre-school DTP vaccine within previous 5 years.
Administration of Td booster within previous 10 years.