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Cervical Intraepithelial Neoplasm (CIN)-Warts Efficacy Trial in Women (Gardasil)(V501-013)(COMPLETED)

A Study to Evaluate the Efficacy of Quadrivalent HPV Vaccine in Reducing the Incidence of HPV 6-, 11-, 16-, and 18-Related CIN, AIS, and Cervical Cancer, and HPV 6-, 11-, 16-, and 18-Related External Genital Warts, Vulvar Intraepithelial Neoplasia Vaginal Intraepithelial Neoplasia, Vulvar Cancer, and Vaginal Cancer in 16- to 23-Year-Old Women

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00092521
Enrollment
5759
Registered
2004-09-28
Start date
2001-12-31
Completion date
2009-01-31
Last updated
2015-09-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cervical Cancer, Genital Warts

Brief summary

The primary purpose of the study is to determine if GARDASIL (V501) with four components is able to prevent cervical cancer, cervical dysplasia, including Cervical Intraepithelial Neoplasia (CIN)(Any Grade) and Adenocarcinoma In Situ (AIS), and genital warts.

Interventions

BIOLOGICALV501

Final Manufactured Product (FMP) quadrivalent HPV vaccine, a 0.5 mL intramuscular injection given at Day 1, Month 2 and Month 6.

BIOLOGICALComparator: Placebo

a 0.5 mL intramuscular placebo injection given at Day 1, Month 2 and Month 6.

BIOLOGICALHuman Papillomavirus (HPV) 16 Monovalent

HPV 16 Monovalent vaccine, a 0.5 mL intramuscular injection given at Day 1, Month 2 and Month 6.

Sponsors

Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
FEMALE
Age
16 Years to 23 Years
Healthy volunteers
Yes

Inclusion criteria

* Female with an intact uterus with lifetime history of 0-4 sexual partners

Exclusion criteria

* Prior Human Papillomavirus (HPV) vaccination * Prior abnormal paps * History of genital warts

Design outcomes

Primary

MeasureTime frame
Incidence of HPV 6/11/16/18-related Cervical Intraepithelial Neoplasia (CIN)(Any Grade), Adenocarcinoma In Situ (AIS) or Cervical CancerFollow-up through end of study (4 years)
Incidence of HPV 6/11/16/18-related External Genital Lesions (EGL) [Genital Warts, Vulvar/Vaginal Intraepithelial Neoplasia (Any Grade), Vulvar/Vaginal Cancer]Follow-up through end of study (4 years)

Participant flow

Recruitment details

The study Protocol 013 (NCT00092521) (N =5759 total randomized) was comprised of two sub-studies: Protocol 011 (NCT00517309) (N=1877 total randomized) and Protocol 012 (NCT00092482) (N=3882 total randomized). Final safety data are presented in the results for Protocol 013 (NCT00092521): the final participant visit took place on 19 January 2009.

Participants by arm

ArmCount
Group 1 - Base Study Quadrivalent Human Papillomavirus Vaccine
The Vaccination Period for the base study encompassed Day 1 through Month 7, during which time study subjects in Group 1 were vaccinated (at Day 1, Month 2 and Month 6) with the Quadrivalent HPV vaccine. The Follow-up Period for the Base Study encompassed the follow-up of subjects who had received the Quadrivalent HPV vaccine; from completion of the Vaccination Period at Month 7 through Month 48 of the study.
2,723
Group 2 - Base Study Monovalent HPV (Type 16) Vaccine
The Vaccination Period for the base study encompassed Day 1 through Month 7, during which time study subjects in Group 2 were vaccinated (at Day 1, Month 2 and Month 6) with the Monovalent (HPV 16) HPV vaccine. The Follow-up Period for the Base Study encompassed the follow-up of subjects who had received the Monovalent (HPV 16) HPV vaccine; from completion of the Vaccination Period at Month 7 through Month 48 of the study.
304
Group 3 - Base Study Placebo
The Vaccination Period for the base study encompassed Day 1 through Month 7, during which time study subjects in Group 3 were vaccinated (at Day 1, Month 2 and Month 6) with placebo. The Follow-up Period for the Base Study encompassed the follow-up of subjects who had received placebo; from completion of the Vaccination Period at Month 7 through Month 48 of the study.
2,732
Total5,759

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Extension Study (Group 4)Adverse Event0002
Extension Study (Group 4)Excluded ineligible for extension00023
Extension Study (Group 4)Lost to Follow-up00087
Extension Study (Group 4)Moved00016
Extension Study (Group 4)Pregnancy0004
Extension Study (Group 4)Protocol Violation0002
Extension Study (Group 4)Site Terminated0004
Extension Study (Group 4)Unable/unwilling to return00025
Extension Study (Group 4)Withdrawal by Subject00046
Follow-Up (After Month 7)Adverse Event1000
Follow-Up (After Month 7)Death2010
Follow-Up (After Month 7)Lost to Follow-up113141080
Follow-Up (After Month 7)Moved322280
Follow-Up (After Month 7)Protocol Violation1150
Follow-Up (After Month 7)Site Terminated3030
Follow-Up (After Month 7)Subjects Continuing344350
Follow-Up (After Month 7)Subjects in Extension131094120
Follow-Up (After Month 7)Travel2000
Follow-Up (After Month 7)Visits Compressed5050
Follow-Up (After Month 7)Withdrawal by Subject406510
Vaccination (Day 1 Through Month 7)Adverse Event1070
Vaccination (Day 1 Through Month 7)Death0010
Vaccination (Day 1 Through Month 7)Lost to Follow-up516440
Vaccination (Day 1 Through Month 7)Moved141180
Vaccination (Day 1 Through Month 7)New Medical History (Not AE)2000
Vaccination (Day 1 Through Month 7)Pregnancy5070
Vaccination (Day 1 Through Month 7)Randomized Not Vaccinated6070
Vaccination (Day 1 Through Month 7)Unblinded2000
Vaccination (Day 1 Through Month 7)Withdrawal by Subject597620

Baseline characteristics

CharacteristicGroup 1 - Base Study Quadrivalent Human Papillomavirus VaccineGroup 2 - Base Study Monovalent HPV (Type 16) VaccineGroup 3 - Base Study PlaceboTotal
Age, Continuous20 Years20 Years20 Years20 Years
Age, Customized
16 to 24 Years of Age
2723 Participants304 Participants2732 Participants5759 Participants
Race/Ethnicity, Customized
Asian
151 participants27 participants165 participants343 participants
Race/Ethnicity, Customized
Black
136 participants5 participants167 participants308 participants
Race/Ethnicity, Customized
Hispanic American
567 participants93 participants566 participants1226 participants
Race/Ethnicity, Customized
Native American
10 participants2 participants10 participants22 participants
Race/Ethnicity, Customized
Other - Unspecified
259 participants6 participants266 participants531 participants
Race/Ethnicity, Customized
White
1600 participants171 participants1558 participants3329 participants
Sex: Female, Male
Female
2723 Participants304 Participants2732 Participants5759 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —
other
Total, other adverse events
2,458 / 2,673276 / 2992,331 / 2,6720 / 0
serious
Total, serious adverse events
50 / 2,6734 / 29945 / 2,6725 / 801

Outcome results

Primary

Incidence of HPV 6/11/16/18-related Cervical Intraepithelial Neoplasia (CIN)(Any Grade), Adenocarcinoma In Situ (AIS) or Cervical Cancer

Time frame: Follow-up through end of study (4 years)

Population: Per-protocol population: subjects must have no major protocol violations, must be seronegative to the relevant type at Day 1 and Polymerase Chain Reaction (PCR) negative to the relevant type through Month 7, and must provide follow-up data. Group 2 Base Study Monovalent HPV Vaccine was not part of the pre-specified efficacy analysis population.

ArmMeasureValue (NUMBER)
Group 1 - Base Study Quadrivalent Human Papillomavirus VaccineIncidence of HPV 6/11/16/18-related Cervical Intraepithelial Neoplasia (CIN)(Any Grade), Adenocarcinoma In Situ (AIS) or Cervical Cancer0 incidence rate per 100 person-years
Group 3 - Base Study PlaceboIncidence of HPV 6/11/16/18-related Cervical Intraepithelial Neoplasia (CIN)(Any Grade), Adenocarcinoma In Situ (AIS) or Cervical Cancer1.2 incidence rate per 100 person-years
95% CI: [95.1, 100]
Primary

Incidence of HPV 6/11/16/18-related External Genital Lesions (EGL) [Genital Warts, Vulvar/Vaginal Intraepithelial Neoplasia (Any Grade), Vulvar/Vaginal Cancer]

Time frame: Follow-up through end of study (4 years)

Population: Per-protocol population: subjects must have no major protocol violations, must be seronegative to the relevant type at Day 1 and PCR negative to the relevant type through Month 7, and must provide follow-up data.~Group 2 Base Study Monovalent HPV (Type 16) Vaccine was not part of the pre-specified efficacy analysis population.

ArmMeasureValue (NUMBER)
Group 1 - Base Study Quadrivalent Human Papillomavirus VaccineIncidence of HPV 6/11/16/18-related External Genital Lesions (EGL) [Genital Warts, Vulvar/Vaginal Intraepithelial Neoplasia (Any Grade), Vulvar/Vaginal Cancer]0 incidence rate per 100 person-years
Group 3 - Base Study PlaceboIncidence of HPV 6/11/16/18-related External Genital Lesions (EGL) [Genital Warts, Vulvar/Vaginal Intraepithelial Neoplasia (Any Grade), Vulvar/Vaginal Cancer]1.1 incidence rate per 100 person-years
95% CI: [94.9, 100]

Source: ClinicalTrials.gov · Data processed: Apr 7, 2026