Immunogenicity of Adacel® and BOOSTRIX® Vaccines in Adolescents

Summary

The aim of this study is to describe immunogenicity of a single booster dose of Adacel vaccine versus Boostrix vaccine among approximately 420 adolescents 11 to \<13 years of age. Primary objective: * To describe seroprotection rates against tetanus and diphtheria in subjects randomized to receive either Adacel or Boostrix vaccine. Observational objectives: * To describe pre- and post-vaccination tetanus, diphtheria, and pertussis geometric mean antibody concentrations (GMCs) in subjects randomized to receive either Adacel or Boostrix vaccine. * To describe booster response rates against tetanus, diphtheria, and pertussis in subjects randomized to receive either Adacel or Boostrix vaccine. * To describe the rates of adverse events (AEs) immediately post-vaccination, and the rates of unsolicited AEs and serious adverse events (SAEs) following vaccination with Adacel or Boostrix vaccine from Visit 1 through Visit 2.

Timeline

Start

2012-06

Primary completion

2013-03

Completion

2013-06

Publications

• Decker MD, Greenberg DP, Johnson DR, Pool V. Randomized study of immune responses to two Tdap vaccines among adolescents primed with DTaP and comparison with results among adolescents primed with DTwP. Vaccine. 2019 Aug 14;37(35):5003-5008. doi: 10.1016/j.vaccine.2019.07.015. Epub 2019 Jul 10.

Drugs

Indications