Immunogenicity and Safety Study of GlaxoSmithKline Biologicals' HPV Vaccine (580299) Co-administrated With a Commercially Available Vaccine in Healthy Female Adolescents

Infection with human papillomavirus (HPV) has been clearly established as the necessary cause of cervical cancer. Vaccination of pre-teens and adolescents, ideally before sexual debut and thus before exposure to oncogenic HPV, is a rational strategy for prevention of cervical cancer. Thus, HPV vaccination could complement the existing pre-adolescent/adolescent vaccination programs. This Phase IIIb study is designed to evaluate the immunogenicity and safety of co-administering a commercially available vaccine with GSK Biologicals' HPV-16/18 L1 VLP AS04 (Cervarix TM) vaccine as compared to the administration of either vaccine alone.