Dataset from A Phase III, Double-blinded, Randomized, Multicenter, Clinical Study to Assess the Safety and Immunogenicity of GSK Biologicals' Tdap 0.3 mg Candidate Vaccine When Given as a Booster Dose to Healthy School Children and Adolescents (9-13 Years of Age), Previously Vaccinated With a 5th Consecutive Dose of Acellular Pertussis-containing Vaccine, in Studies APV-118 or APV-120

The aims of this study are to evaluate the safety and immunogenicity of a booster dose of GSK Biological's candidate Tdap vaccine containing 0.3 mg Al when administered to healthy school children and adolescents (9-13 years of age) previously vaccinated with five consecutive doses of Pa-containing vaccine. The inclusion of hepatitis A vaccine (Havrix®) as a control vaccine enables this study to be conducted in a double-blinded in terms of immunogenicity and safety assessments.