Spots Global Cancer Trial Database for Immunogenicity and Safety of Human Papillomavirus (HPV)-16/18 Vaccine in Healthy Females

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Trial Identification

Brief Title: Immunogenicity and Safety of Human Papillomavirus (HPV)-16/18 Vaccine in Healthy Females

Official Title: Immunogenicity and Safety of Recombinant Human Papillomavirus Bivalent(Type 16 and 18) Vaccine (Yeast) in Healthy Females

Study ID: NCT02740790

Conditions

Human Papillomavirus

Interventions

HPV vaccine

Placebo

Study Description

Brief Summary: Evaluate immunogenicity and safety of recombinant human papillomavirus bivalent ( types 16 and 18 ) vaccine ( Yeast )in different age group. And evaluate persistence of immune response in 9-17years age group. To demonstrate that 9-17years age group was non-inferior to 18-26 years age group and 27-45 years age group in terms of immunogenicity.

Detailed Description: This study is a multi-centre, randomized, blinded, placebo controlled study. The study vaccine is recombinant human papillomavirus bivalent (types 16 and 18) vaccine (Yeast), the placebo is aluminium phosphate diluent. After informed and received the consent of participants/guardians, 1200 healthy females aged 9-45 will be enrolled into three age groups: 9-17, 8-26, 27-45. With the proportion of 1:1, vaccine group and placebo group will receive injection of 0.5ml of vaccine or placebo diluent. Participants will be injected of vaccine or placebo on a three-dose schedule (0, 2, 6 months). After each inoculation, the immediate reaction will be observed for 30 minutes, and the local and systemic reaction will be systematically observed for 7 days. After the first inoculation, adverse event will be collected until one month after the final inoculation, while serious adverse event will be collected until 6 months after the final inoculation. For every participants, blood samples will be collected before the first inoculation (month 0), one month after the final inoculation (month 7), 6 months after the final inoculation (month 12) to detect the neutralizing antibody of HPV type 16 and 18, and proceed safety and immunogenicity analysis. For participants in 9-14 age group who received the vaccine, neutralizing antibody will also be detected in month 24, 36 and 48 to examine the immune persistency. Meanwhile, some participants will be chosen to study the deviation of gene expression after the vaccination and the association of that with the neutralizing antibody level.