NCT04704908

Immuno-persistence Study of a Recombinant Human Papillomavirus 16/18 Bivalent Vaccine in Preadolescent Girls (54m)

Immuno-persistence Study of A Bivalent Human Papillomavirus (Type 16, 18) Recombinant Vaccine (E.Coli) in Healthy Female Subjects Aged 9 to 17 Years

• Status: Unknown
• Phase: —
• Study type: Observational
• Enrollment: 979 (estimated)
• Sponsor: Jun Zhang · Academic / Other
• Sex: Female
• Age: 14 Years – 32 Years
• Healthy volunteers: —

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

Conditions

• Cervical Intraepithelial Neoplasia
• Cervical Cancer
• Vaginal Intraepithelial Neoplasia
• Vulvar Intraepithelial Neoplasia
• Persistent Infection

Interventions

Type	Name	Description
DRUG	Recombinant Human Papillomavirus Bivalent (Types 16, 18) Vaccine (Escherichia coli)	The bivalent HPV-16/18 vaccine was a mixture of two aluminum hydroxide adjuvant-absorbed recombinant L1 VLPs of HPV-16 and HPV-18 expressed in E. coli. A 0.5 ml dose of the bivalent HPV test vaccine comprised 40 μg of HPV-16 and 20 μg of HPV-18 L1 VLPs absorbed with 208 μg of aluminum adjuvant

Timeline

• Start date: 2021-02-06
• Primary completion: 2021-04-01
• Completion: 2023-12-01
• First posted: 2021-01-12
• Last updated: 2023-01-26

Locations

1 site across 1 country: China