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An Investigational Study of Gardasil™ (qHPV Vaccine) in Reducing the Incidence of Anogenital Warts in Young Men (V501-020)

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ClinicalTrials.gov Identifier: NCT00090285
Recruitment Status : Completed
First Posted : August 27, 2004
Results First Posted : November 19, 2009
Last Update Posted : April 24, 2018
Sponsor:
Information provided by (Responsible Party):
Merck Sharp & Dohme Corp.

Brief Summary:
This study was conducted to demonstrate that Gardasil™ (quadrivalent human papillomavirus [qHPV] vaccine) 1) is well tolerated in young men, 2) reduces incidence of external genital lesions in young men, 3) reduces the incidence of anal intraepithelial neoplasia (AIN) or anal cancer in men having sex with men (MSM), and 4) reduces incidence of Human Papillomavirus (HPV) infection in young men. In the 7-month Base Study participants received randomly assigned qHPV vaccine or placebo at Day 1, Month 2, and Month 6. Base Study follow-up continued through Month 36. In Extension 1 (EXT1), participants who received placebo or an incomplete qHPV vaccine regimen in the Base Study were offered qHPV vaccine. Participants were followed in EXT1 for 7 months. In Extension 2 [LTFU (EXT2)], long-term effectiveness, immunogenicity, and safety of qHPV vaccine were followed up to 10 years following study enrollment. Participants who received ≥1 dose of qHPV vaccine in the Base Study or EXT1 were eligible to enroll in LTFU (EXT2).

Condition or disease Intervention/treatment Phase
Condylomata Acuminata Biological: (Gardasil™) human papillomavirus (types 6, 11, 16, 18) recombinant vaccine Biological: Comparator: placebo (unspecified) Phase 3

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 4065 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Prevention
Official Title: An Investigational Vaccine in Reducing the Incidence of Anogenital Warts in Young Men
Actual Study Start Date : September 3, 2004
Actual Primary Completion Date : July 31, 2009
Actual Study Completion Date : April 3, 2017

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Warts

Arm Intervention/treatment
Experimental: qHPV Vaccine
The Vaccination Period for the Base Study encompassed Day 1 through Month 7, during which time participants received qHPV vaccination at Day 1, Month 2 and Month 6. Follow-up for the Base Study encompassed Month 7 through Month 36.
Biological: (Gardasil™) human papillomavirus (types 6, 11, 16, 18) recombinant vaccine
0.5 mL intramuscular injection in the deltoid muscle at Day 1, Month 2, and Month 6 in the Base Study
Other Names:
  • qHPV
  • V501

Placebo Comparator: Placebo
The Vaccination Period for the Base Study encompassed Day 1 through Month 7, during which time participants received placebo at Day 1, Month 2 and Month 6. Follow-up for the Base Study encompassed Month 7 through Month 36.
Biological: Comparator: placebo (unspecified)
0.5 mL intramuscular injection in the deltoid muscle at Day 1, Month 2, and Month 6 in the Base Study




Primary Outcome Measures :
  1. Base Study: Incidence of Human Papillomavirus (HPV) Type 6/11/16/18-related External Genital Warts, Penile/Perianal/Perineal Intraepithelial Neoplasia (PIN), Penile, Perianal or Perineal Cancer [ Time Frame: Base study: through Month 36 ]
    Participants with HPV 6/11/16/18-related external genital warts, penile/perianal/perineal intraepithelial neoplasia (PIN), penile, perianal or perineal cancer per 100 person-years of follow-up was assessed.

  2. Overall Study: Incidence of HPV Type 6/11-related Genital Warts [ Time Frame: Up to 10 years after the first dose of qHPV vaccine ]
    Incidence of HPV Type 6/11-related genital warts is expressed as events per 10,000 person-years of follow-up.

  3. Overall Study: Incidence of HPV Type 6/11/16/18-related External Genital Warts, PIN, Penile, Perianal or Perineal Cancer [ Time Frame: Up to 10 years after the first dose of qHPV vaccine ]
    Incidence of HPV Type 6/11/16/18-related external genital warts, PIN, penile, perianal or perineal cancer is expressed as events per 10,000 person-years of follow-up.

  4. Overall Study: Incidence of HPV Type 6/11/16/18-related Anal Intraepithelial Neoplasia (AIN) and Anal Cancer [ Time Frame: Up to 10 years after the first dose of qHPV vaccine ]
    Incidence of HPV Type 6/11/16/18-related AIN and anal cancer is expressed as events per 10,000 person-years of follow-up. MSM is men having sex with men.

  5. Base Study: Number of Participants With Severe Injection Site Adverse Experiences (AEs) [ Time Frame: Base study: through Day 5 after any vaccination ]
    An adverse event is defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the SPONSOR'S product, whether or not considered related to the use of the product. Any worsening of a preexisting condition which is temporally associated with the use of the SPONSOR'S product, is also an adverse experience. A severe AE is incapacitating with inability to work or do usual activities.

  6. Base Study: Number of Participants With Vaccine-Related Serious Adverse Events (SAEs) [ Time Frame: Base study: through Month 36 ]
    A serious adverse event is an AE that 1) results in death, 2) is life threatening, 3) results in persistent or significant disability or incapacity, 4) results in or prolongs an existing hospitalization, 5) is a congenital anomaly or birth defect, 6) is a cancer, 7) is an overdose, or 8) based on appropriate medical judgment may jeopardize the participant and may require medical or surgical intervention. A vaccine-related AE is one deemed to be possibly, probably or definitely related to study vaccine by the investigator.

  7. LTFU (EXT2): Number of Participants With Vaccine-Related SAEs [ Time Frame: LTFU (EXT2): Early Vaccination Group: up to 12 years after last dose of qHPV vaccine; LTFU (EXT2) Catch-up Vaccination Group: up to 7 years after last dose of qHPV vaccine ]
    An SAE is an AE that 1) results in death, 2) is life threatening, 3) results in persistent or significant disability or incapacity, 4) results in or prolongs an existing hospitalization, 5) is a congenital anomaly or birth defect, 6) is a cancer, 7) is an overdose, or 8) based on appropriate medical judgment may jeopardize the participant and may require medical or surgical intervention. A vaccine-related AE is one deemed to be possibly, probably or definitely related to study vaccine by the investigator.

  8. LTFU (EXT2): Number of Participants Who Died [ Time Frame: LTFU (EXT2): Early Vaccination Group: up to 12 years after last dose of qHPV vaccine; LTFU (EXT2) Catch-up Vaccination Group: up to 7 years after last dose of qHPV vaccine ]
    The number of participants who died was assessed.


Secondary Outcome Measures :
  1. Base Study: Incidence of HPV 6/11/16/18-related Persistent Infection [ Time Frame: Base study: through Month 36 ]
    Participants with HPV Type 6/11/16/18-related persistent infection per 100 person-years of follow-up was assessed.

  2. Base Study: Incidence of HPV 6/11/16/18-related Deoxyribonucleic Acid (DNA) Detection [ Time Frame: Base study: through Month 36 ]
    Participants with HPV 6/11/16/18-related DNA detection per 100 person-years of follow-up was assessed.

  3. Geometric Mean Titers to HPV Types 6, 11, 16, and 18 at Month 7 Assessed by Competitive Luminex Immunoassay (cLIA) [ Time Frame: Month 7 ]
    Antibodies to HPV types were measured using cLIA. Antibody titers were expressed as cLIA milli Merck units/mL (cLIA mMU/mL).

  4. Geometric Mean Titers to HPV Types 6, 11, 16, and 18 at Month 36 Assessed by cLIA [ Time Frame: Month 36 ]
    Antibodies to HPV types were measured using cLIA. Antibody titers were expressed as cLIA milli Merck units/mL (cLIA mMU/mL).

  5. Geometric Mean Titers to HPV Types 6, 11, 16, and 18 at Month 72 Assessed by cLIA [ Time Frame: Month 72 ]
    Antibodies to HPV types were measured using cLIA. Antibody titers were expressed as cLIA milli Merck units/mL (cLIA mMU/mL).

  6. Geometric Mean Titers to HPV Types 6, 11, 16, and 18 at Month 120 Assessed by cLIA [ Time Frame: Month 120 ]
    Antibodies to HPV types were measured using cLIA. Antibody titers were expressed as cLIA milli Merck units/mL (cLIA mMU/mL).

  7. Percentage of Participants Seropositive for HPV Type 6, 11, 16, and 18 at Month 7 Assessed by cLIA [ Time Frame: Month 7 ]
    Antibodies to HPV types were measured using cLIA. Thresholds for seropositive were ≥20, 16, 20, and 24 cLIA mMU/mL for HPV Types 6, 11, 16, and 18, respectively.

  8. Percentage of Participants Seropositive for HPV Type 6, 11, 16, and 18 at Month 36 Assessed by cLIA [ Time Frame: Month 36 ]
    Antibodies to HPV types were measured using cLIA. Thresholds for seropositive were ≥20, 16, 20, and 24 cLIA mMU/mL for HPV Types 6, 11, 16, and 18, respectively.

  9. Percentage of Participants Seropositive for HPV Type 6, 11, 16, and 18 at Month 72 Assessed by cLIA [ Time Frame: Month 72 ]
    Antibodies to HPV types were measured using cLIA. Thresholds for seropositive were ≥20, 16, 20, and 24 cLIA mMU/mL for HPV Types 6, 11, 16, and 18, respectively.

  10. Percentage of Participants Seropositive for HPV Type 6, 11, 16, and 18 at Month 120 Assessed by cLIA [ Time Frame: Month 120 ]
    Antibodies to HPV types were measured using cLIA. Thresholds for seropositive were ≥20, 16, 20, and 24 cLIA mMU/mL for HPV Types 6, 11, 16, and 18, respectively.

  11. Geometric Mean Titers to HPV Types 6, 11, 16, and 18 at Month 120 Assessed by Immunoglobulin G Luminex Immunoassay (IgG LIA) [ Time Frame: Month 120 ]
    Antibodies to HPV types were measured using Luminex immunoassay (IgG-LIA). The unit of measure for this assay is IgG LIA mMU/mL; this unit cannot be directly compared with the cLIA mMU/mL unit reported for the cLIA results.

  12. Percentage of Participants Seropositive for HPV Type 6, 11, 16, and 18 at Month 120 Assessed by IgG LIA [ Time Frame: Month 120 ]
    Antibodies to HPV types were measured using IgG LIA. Thresholds for seropositive were ≥9, 6, 5, and 5 IgG LIA mMU/mL for HPV Types 6, 11, 16, and 18, respectively.


Other Outcome Measures:
  1. Base Study: Substudy to Evaluate the Incidence of HPV 6/11/16/18-related Anal Intraepithelial Neoplasia (AIN) and Anal Cancer in Men Having Sex With Men (MSM) [ Time Frame: Base study: through Month 36 ]
    Participants with HPV 6/11/16/18-related AIN or anal cancer per 100 person-years of follow-up was assessed.



Information from the National Library of Medicine

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Ages Eligible for Study:   16 Years to 26 Years   (Child, Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • Healthy heterosexual males between the ages of 16 years and 23 years and 364 days. Healthy men having sex with men (MSM) between the ages of 16 years and 26 years and 364 days.
  • No clinical evidence of genital lesions suggesting sexually-transmitted disease, and no history of anogenital warts
  • Additional criteria will be discussed with you by the physician

Exclusion Criteria:

  • Concurrently enrolled in a clinical study involving collection of genital specimens
  • History of known prior vaccination with an HPV vaccine
  • Received an inactivated vaccine within 14 days or a live virus vaccine within 21 days prior to enrollment
  • History of a severe allergic reaction that required medical intervention
  • Received any immune globulin or blood-derived products within 6 months prior to the first study injection
  • History of splenectomy, immune disorders, or receiving immunosuppressives
  • Immunocompromised or diagnosed with HIV infection
  • Known thrombocytopenia or any coagulation disorder that would contraindicate intramuscular injections
  • History of recent or ongoing alcohol or drug abuse

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00090285


Sponsors and Collaborators
Merck Sharp & Dohme Corp.
Investigators
Study Director: Medical Monitor Merck Sharp & Dohme Corp.

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: Merck Sharp & Dohme Corp.
ClinicalTrials.gov Identifier: NCT00090285     History of Changes
Other Study ID Numbers: V501-020
Formerly-0904HPVHMES
2004_103
2004-002945-10 ( EudraCT Number )
V501-020 ( Other Identifier: Merck Protocol Number )
First Posted: August 27, 2004    Key Record Dates
Results First Posted: November 19, 2009
Last Update Posted: April 24, 2018
Last Verified: March 2018

Keywords provided by Merck Sharp & Dohme Corp.:
anogenital warts

Additional relevant MeSH terms:
Vaccines
Immunologic Factors
Physiological Effects of Drugs