Clinical Trial

Human Papillomavirus Vaccine in Men Aged 20-45

Study Description

Efficacy Against Oral Persistent Infection, Immunogenicity and Safety of the 9-valent Human Papillomavirus Vaccine (9vHPV) in Men Aged 20-45 Years (V503-049)

The purpose of this study is to evaluate the efficacy, immunogenicity and safety of the 9-valent human papillomavirus (9vHPV) vaccine in men 20 to 45 years of age. The primary hypothesis tested in this study is that administration of a 3-dose regimen of 9vHPV vaccine will reduce the incidence of HPV 16/18/31/33/45/52/58-related oral persistent infection (6 months or longer) compared with placebo.


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No pharmaceutical medication involved No pharmaceutical medication involved
Patients and healthy individuals accepted Patients and healthy individuals accepted

Biological - 9vHPV Vaccine

9-valent human papillomavirus vaccine (9vHPV) is an aluminum-adjuvanted recombinant protein vaccine prepared from the highly purified virus-like particles (VLPs) of the recombinant major capsid (L1) protein of HPV Types 6, 11, 16, 18, 31, 33, 45, 52, and 58 given as a 0.5 mL intramuscular injection.

Placebo (Saline for Injection)

0.9% sodium chloride given as a 0.5-mL intramuscular injection

Additional Information

Official Study Title

A Phase 3, International, Multi-center, Randomized, Double-blind, Placebo-controlled Clinical Trial to Study the Efficacy, Immunogenicity, and Safety of the 9vHPV Vaccine, a Multivalent L1 Virus-like Particle Vaccine, in the Prevention of Oral Persistent Infection With HPV Types 16, 18, 31, 33, 45, 52, or 58 in Adult Males, 20 to 45 Years of Age

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