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Brief Title: Efficacy, Immunogenicity and Safety of V503 in Chinese Women Aged 20-45 Years (V503-023)
Official Title: A Phase 3 Randomized, Double-Blinded, Controlled With GARDASIL® Efficacy, Immunogenicity and Safety Study of V503 [a 9-Valent HPV Vaccine] in Chinese Women 20 to 45 Years of Age
Study ID: NCT03998254
Brief Summary: This study will evaluate the efficacy, immunogenicity and safety of 9-valent human papillomavirus (9vHPV; V503) vaccine in Chinese women 20 to 45 years of age. The primary hypotheses are: 9vHPV vaccine reduces the incidence of HPV 31-, 33-, 45-, 52-, and 58-related 12-month persistent infection at least 1 month post Dose 3, compared with quadrivalent HPV (qHPV) vaccine in women 20 to 45 years of age who are seronegative at Day 1 and polymerase chain reaction (PCR) negative Day 1 through Month 7 to the relevant HPV type; and 9vHPV vaccine induces non-inferior competitive luminex immunoassay (cLIA) geometric mean titers (GMTs) for each of HPV 6, 11, 16, and 18 one month post Dose 3, compared with qHPV vaccine in women 20 to 45 years of age who are seronegative at Day 1 and PCR negative Day 1 through Month 7 to the relevant HPV type.
Detailed Description: This study has two stages with the Stage I expected from Day 1 through Month 30, and the Stage II expected post-Month 30 to Month 90. The Stage I study is a case-driven study which aims to accrue at least 20 cases of HPV 31/33/45/52/58-related 12-month persistent infection and at least 39 cases of HPV 31/33/45/52/58-related 6-month persistent infection by completion of Month 30 visit. The Stage II study is a case-driven study which aims to accrue at least 12 cases of HPV 31/33/45/52/58-related cervical intraepithelial neoplasia grade 2 or 3 (CIN 2/3), cervical adenocarcinoma in situ (AIS), and cervical cancer observed in both Stage I and Stage II, by completion of Month 90 visit.
Minimum Age: 20 Years
Eligible Ages: ADULT
Sex: FEMALE
Healthy Volunteers: Yes
Lingchuan Center for Disease Control and Prevention ( Site 0002), Guilin, Guangxi, China
Quanzhou Center for Disease Control and Prevention ( Site 0001), Guilin, Guangxi, China
Xiangyuan Center for Disease Control and Prevention ( Site 0003), Changzhi, Shanxi, China
Yanhu Center for Disease Control and Prevention of Yuncheng ( Site 0004), Yuncheng, Shanxi, China
Mianyang Center for Disease Control and Prevention ( Site 0005), Mianyang, Sichuan, China
Santai County Center for Disease Control and Prevention ( Site 0006), Mianyang, Sichuan, China
Name: Medical Director
Affiliation: Merck Sharp & Dohme LLC
Role: STUDY_DIRECTOR