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Efficacy, Immunogenicity, and Safety of V503 in Chinese Males (V503-052)

NCT05285826 · Status: ACTIVE_NOT_RECRUITING · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 8100

Last updated 2024-12-16

No results posted yet for this study

Summary

This study will evaluate the efficacy, immunogenicity, and safety of 9-valent human papillomavirus (9vHPV; V503) vaccine in Chinese men 20 to 45 years of age. It will enroll heterosexual men (HM) and men who have sex with men (MSM), will be stratified by age and sexual orientation, and will have two stages. The primary hypothesis of Stage I is: 9vHPV vaccine reduces the combined incidence of HPV 6-, 11-, 16-, 18-, 31-, 33-, 45-, 52-, and 58-related external genital and intra-anal 12-month persistent infection (PI) compared with placebo in males 20 to 45 years of age who are seronegative at Day 1 and polymerase chain reaction (PCR) negative from Day 1 through one month post-Dose 3 to the relevant HPV type. The primary hypothesis of Stages I and II combined is: 9vHPV vaccine reduces the combined incidence of HPV 6-, 11-, 16-, 18-, 31-, 33-, 45-, 52-, and 58-related genital warts, penile/perianal/perineal intraepithelial neoplasia (PIN), or penile/perianal/perineal cancer compared with placebo in males 20 to 45 years of age who are seronegative at Day 1 and PCR negative from Day 1 through one month post-Dose 3 to the relevant HPV type.

Conditions

  • Papillomavirus Infections

Interventions

BIOLOGICAL

9vHPV Vaccine

9-valent human papillomavirus (Types 6, 11, 16, 18, 31, 33, 45, 52, 58) L1 virus-like particle vaccine administered as a 0.5-mL IM injection

OTHER

Placebo

Sterile saline solution administered as a 0.5 mL IM injection

Sponsors & Collaborators

Principal Investigators

  • Medical Director · Merck Sharp & Dohme LLC

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
20 Years
Max Age
45 Years
Sex
MALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2022-02-18
Primary Completion
2029-05-25
Completion
2029-05-25
FDA Drug
Yes

Countries

  • China

Study Locations

More Related Trials

Entities

Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05285826 on ClinicalTrials.gov