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Brief Title: Immuno-persistence Study of a Recombinant Human Papillomavirus 16/18 Bivalent Vaccine in Preadolescent Girls (54m)
Official Title: Immuno-persistence Study of A Bivalent Human Papillomavirus (Type 16, 18) Recombinant Vaccine (E.Coli) in Healthy Female Subjects Aged 9 to 17 Years
Study ID: NCT04704908
Brief Summary: The primary objective of this study is to evaluate the immuno-persistence (type specific IgG antibody) of the tested vaccine administered in girls aged 9-17 years,comparing to young healthy adults of 18-26 years who received the standard 3-dose schedule (0,1,6 months).
Detailed Description: This is a follow-up study that is based on the bridging study of a recombinant human papillomavirus 16/18 bivalent vaccine in preadolescent girls(Unique Protocol ID:HPV-PRO-006,Identifiers: NCT02562508) .The investigators will recruit people who have participated in bridging study before and collect their serum samples to test the seroprevalence and geometric mean concentrations of anti-HPV16 and anti-HPV18 antibody on 54 months after dose 1
Minimum Age: 14 Years
Eligible Ages: CHILD, ADULT
Sex: FEMALE
Healthy Volunteers: No
Jiangsu Provincial Centre for Disease Control and Prevention, Nanjing, Jiangsu, China
Name: Ting Wu, Ph. D.
Affiliation: Xiamen University
Role: STUDY_CHAIR