Conditions: Infections, Papillomavirus
Keywords: Human papillomavirus Safety HPV vaccine Immune response
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 1079
Healthy volunteers: yes

Brief summary:
The purpose of this study is to evaluate the immunogenicity and the safety of Cervarix administered according to a 2-dose schedule at 0, 6 months compared to Gardasil, administered according to a 2-dose schedule at 0, 6 months or the standard 3-dose schedule of 0, 2, 6 months in 9-14 years old healthy females.

Detailed description:

Arms:
arm 1: Subjects who received 2 doses of Cervarix vaccine at Day 0 and Month 6 and 1 dose of placebo at Month 2. The vaccines were administered intramuscularly, in the deltoid muscle of the non-dominant upper arm. arm 2: Subjects who received 2 doses of Gardasil vaccine at Day 0 and Month 6 and 1 dose of placebo at Month 2. The vaccines were administered intramuscularly, in the deltoid muscle of the non-dominant upper arm. arm 3: Subjects who received 3 doses of Gardasil vaccine at Day 0 and at Months 2 and 6. The vaccines were administered intramuscularly, in the deltoid muscle of the non-dominant upper arm.

Interventions: intervention 1: Cervarix intervention 2: Gardasil intervention 3: Placebo
Intervention descriptions: intervention 1: 2 doses of 0.5 mL supplied as a liquid in individual pre-filled syringes to be administered intramuscularly in the deltoid muscle of the non-dominant arm at Day 0 and Month 6. intervention 2: 2 or 3 doses of 0.5 mL supplied as a liquid in individual pre-filled syringes or vials to be administered intramuscularly in the deltoid muscle of the non-dominant arm at Day 0 and Month 6 (Gardasil 2 dose Group) or at Day 0, Month 2 and Month 6 (Gardasil 3 dose Group), respectively. intervention 3: 2 doses of 0.5 mL supplied as a liquid in individual pre-filled syringes to be administered intramuscularly in the deltoid muscle of the non-dominant arm at Month 2 to maintain blinding.

Protocol document: