Study of Human Papillomavirus (HPV) 16 Vaccine in the Prevention of HPV 16 Infection in 16- to 23-Year-Old Females (V501-005)

October 22, 2015 updated by: Merck Sharp & Dohme LLC

Study of Pilot Manufacturing Lot of HPV 16 Virus-Like Particle (VLP) Vaccine in the Prevention of HPV 16 Infection in 16- to 23-Year-Old Females

Subjects received HPV 16 L1 VLP vaccine or placebo (1:1 ratio). Endpoints included efficacy, immunogenicity, and safety.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

2409

Phase

  • Phase 2

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

16 years to 23 years (Child, Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • Healthy, unmarried females age 16 to 23 years with intact uteri
  • Not pregnant at enrollment
  • Agreed to use effective contraception through Month 7 of the study
  • A lifetime history of 0 to 5 male partners with whom the subjects engaged in at least one episode of insertive intercourse

Exclusion Criteria:

  • No prior history of Human Papillomavirus (HPV) vaccination
  • No receipt of any other vaccination within 1 month prior to enrollment or plans to receive any other vaccination within 1 month prior to or after any dose of study vaccine
  • No prior history of an abnormal Papanicolaou (Pap) test showing Squamous intraepithelial lesion (SIL) or biopsy showing Cervical intraepithelial neoplasia (CIN)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: 2
Placebo
Biological: Comparator: Placebo
A 0.5 intramuscular placebo injection given at Day 1, Month 2, and Month 6
Experimental: 1
HPV 16 L1 VLP vaccine
Biological: Comparator: HPV 16 L1 Vaccine
A 0.5 intramuscular injection given at Day 1, Month 2, and Month 6
Other Names:
  • V501

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Incidence of Persistent HPV 16 Infection
Time Frame: Through Month 48
Cases of persistent infection were those with detection of HPV 16 by PCR (Polymerase chain reaction) on at least 2 consecutive visits at least 4 months apart; or detection of HPV 16 in a cervical biopsy specimen showing pathologic evidence of CIN1 (Cervical intraepithelial neoplasia), CIN2 or CIN3 together with HPV 16 detected at the visit immediately before or after the biopsy; or detection of HPV 16 on a subject's last visit.
Through Month 48
Incidence of HPV 16-related CIN1, CIN2 or C1N3
Time Frame: Through Month 48
Cases of HPV 16-related CIN1, CIN2 or CIN3 are those with detection of HPV 16 in a cervical biopsy specimen showing pathologic evidence of CIN1, CIN2 or CIN3 together with HPV 16 detected at the visit immediately before or after the biopsy.
Through Month 48
Serum Anti-HPV 16 Geometric Mean Titers
Time Frame: Month 7
The limit of detection of the assay was 6 mMU/ml. Samples with titer below the limit of detection were assigned a value of 3 for calculation of GMT and confidence interval. GMTs and confidence limits below the limit of detection are shown as "6.0".
Month 7

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Merck Sharp & Dohme LLC

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

September 1, 1999

Primary Completion (Actual)

March 1, 2004

Study Completion (Actual)

July 1, 2009

Study Registration Dates

First Submitted

August 16, 2006

First Submitted That Met QC Criteria

August 16, 2006

First Posted (Estimate)

August 17, 2006

Study Record Updates

Last Update Posted (Estimate)

October 23, 2015

Last Update Submitted That Met QC Criteria

October 22, 2015

Last Verified

October 1, 2015

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • V501-005
  • 2006_515

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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