Vaccine To Prevent Cervical Intraepithelial Neoplasia or Cervical Cancer in Younger Healthy Participants

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
GlaxoSmithKline
ClinicalTrials.gov Identifier:
NCT00128661
First received: August 8, 2005
Last updated: May 24, 2012
Last verified: May 2012
Results First Received: December 15, 2011  
Study Type: Interventional
Study Design: Allocation: Randomized;   Intervention Model: Parallel Assignment;   Masking: Double Blind (Subject, Investigator, Outcomes Assessor);   Primary Purpose: Prevention
Conditions: Cervical Cancer
Precancerous Condition
Interventions: Biological: human papillomavirus 16/18 L1 virus-like particle/AS04 vaccine
Biological: hepatitis A inactivated virus vaccine

  Participant Flow
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Recruitment Details
Key information relevant to the recruitment process for the overall study, such as dates of the recruitment period and locations
No text entered.

Pre-Assignment Details
Significant events and approaches for the overall study following participant enrollment, but prior to group assignment
Solicited symptoms were collected for 3730 and 3740 subjects instead of the 3727 and 3739 subjects who were randomized in the study in the Cervarix and the Havrix groups, respectively. These 4 sujects received both vaccines and were included in the denominator of both arm based on the actual vaccine type administered.

Reporting Groups
  Description
Cervarix Group Subjects received 3 doses of Cervarix vaccine at study Months 0, 1 and 6. All the vaccine doses were administered intramuscularly in the deltoid region of the non-dominant arm.
Havrix Group Subjects received 3 doses of Havrix vaccine at study Months 0, 1 and 6. All the vaccine doses were administered intramuscularly in the deltoid region of the non-dominant arm.

Participant Flow:   Overall Study
    Cervarix Group     Havrix Group  
STARTED     3727     3739  
COMPLETED     3453     3481  
NOT COMPLETED     274     258  
Adverse Event                 14                 11  
Lost to Follow-up                 10                 7  
Withdrawal by Subject                 243                 232  
Unspecified                 7                 8  



  Baseline Characteristics
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Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
No text entered.

Reporting Groups
  Description
Cervarix Group Subjects received 3 doses of Cervarix vaccine at study Months 0, 1 and 6. All the vaccine doses were administered intramuscularly in the deltoid region of the non-dominant arm.
Havrix Group Subjects received 3 doses of Havrix vaccine at study Months 0, 1 and 6. All the vaccine doses were administered intramuscularly in the deltoid region of the non-dominant arm.
Total Total of all reporting groups

Baseline Measures
    Cervarix Group     Havrix Group     Total  
Number of Participants  
[units: participants]
  3727     3739     7466  
Age  
[units: Years]
Mean ± Standard Deviation
     
Years     21.1  ± 2.3     21.1  ± 2.3     21.1  ± 2.3  
Gender  
[units: Subjects]
     
Female     3727     3739     7466  
Male     0     0     0  



  Outcome Measures
  Show All Outcome Measures

1.  Primary:   Number of Histopathologically Confirmed Cervical Intraepithelial Neoplasia (CIN)2+ Cases Associated With HPV16 and/or HPV18 Infection Detected in the Preceding Cervical Cytology Specimen.   [ Time Frame: From Month 6 up to Month 48 ]

2.  Secondary:   Number of Cervical Infection With HPV16 or HPV18.   [ Time Frame: From Month 6 up to Month 48 ]

3.  Secondary:   Number of Histopathologically Confirmed CIN2+ Cases Associated With Infection by Any Oncogenic HPV Type   [ Time Frame: From Month 6 up to Month 48 ]

4.  Secondary:   Number of Persistent Infection (12-month Definition) With Human Papillomavirus (HPV)-16 or HPV-18 Cases   [ Time Frame: From Month 6 up to Month 48 ]
  Hide Outcome Measure 4

Measure Type Secondary
Measure Title Number of Persistent Infection (12-month Definition) With Human Papillomavirus (HPV)-16 or HPV-18 Cases
Measure Description

Persistent incident HPV-16 and /or HPV-18 cervical infection had to fulfil the following criteria: first detection after the 6-month visit, 2 same type HPV positive (by PCR) test results 10+ months apart, and no intervening HPV negative tests for the corresponding type.

Persistent HPV16 or HPV18 cervical infection = detection of the same HPV type by polymerase chain reaction (PCR) in cervical samples from all consecutive evaluations over approximately 12 months.

Subjects were HPV deoxyribonucleic acid (DNA) negative (DNA-) at Month 0 and Month 6 for the corresponding HPV-type.

Time Frame From Month 6 up to Month 48  
Safety Issue No  

Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
The According-To-Protocol (ATP) cohort for efficacy included subjects with efficacy data available, who received 3 doses of vaccine, who were HPV DNA- for the corresponding type at enrollment and at the time of administration of the 3rd dose (Month 6) and who did not have a biopsy or treatment during the vaccination phase (prior to the Month 6).

Reporting Groups
  Description
Cervarix Group Subjects received 3 doses of Cervarix vaccine at study Months 0, 1 and 6. All the vaccine doses were administered intramuscularly in the deltoid region of the non-dominant arm.
Havrix Group Subjects received 3 doses of Havrix vaccine at study Months 0, 1 and 6. All the vaccine doses were administered intramuscularly in the deltoid region of the non-dominant arm.

Measured Values
    Cervarix Group     Havrix Group  
Number of Participants Analyzed  
[units: participants]
  2635     2677  
Number of Persistent Infection (12-month Definition) With Human Papillomavirus (HPV)-16 or HPV-18 Cases  
[units: Events]
   
Persistent HPV16 Infection (N=2464,2452)     10     71  
Persistent HPV18 Infection (N=2567;2593)     0     37  
Persistent HPV16 and/or 18 Infection (N=2635;2677)     10     104  

No statistical analysis provided for Number of Persistent Infection (12-month Definition) With Human Papillomavirus (HPV)-16 or HPV-18 Cases



5.  Secondary:   Geometric Mean Titers (GMTs) for HPV-16 Antibody in the Immunogenicity Subcohort.   [ Time Frame: Before vaccination and at Month 1, 6, 7, 12, 18, 24, 30, 36, 42 and 48 ]

6.  Secondary:   Geometric Mean Titers (GMTs) for HPV-18 Antibody in the Immunogenicity Subcohort   [ Time Frame: Before vaccination and at Month 1, 6, 7, 12, 18, 24, 30, 36, 42 and 48 ]

7.  Secondary:   HPV-16 Geometric Mean Titers (GMTs) (V5 Monoclonal Antibody Inhibition Test)   [ Time Frame: Before vaccination and at Month 1, 6, 7, 12, 18, 24, 30, 36, 42 and 48 ]

8.  Secondary:   HPV-18 Geometric Mean Titers (GMTs) (J4 Monoclonal Antibody Inhibition Test)   [ Time Frame: Before vaccination and at Month 1, 6, 7, 12, 18, 24, 30, 36, 42 and 48 ]

9.  Secondary:   Number of Subjects Reporting Any and Grade 3 Solicited Local Symptoms.   [ Time Frame: Within 60 minutes after vaccination ]

10.  Secondary:   Number of Subjects Reporting Any and Grade 3 Solicited General Symptoms.   [ Time Frame: Within 60 minutes after vaccination ]

11.  Secondary:   Number of Subjects Reporting Any and Grade 3 Solicited Local Symptoms on a 10% Random Subset of Participants.   [ Time Frame: From Day 3 to Day 6 after vaccination ]

12.  Secondary:   Number of Subjects Reporting Any and Grade 3 Solicited General Symptoms on a 10% Random Subset of Participants.   [ Time Frame: From Day 3 to Day 6 after vaccination ]

13.  Secondary:   Number of Subjects Reporting Serious Adverse Events (SAEs).   [ Time Frame: During the entire study period (From Month 0 up to Month 48). ]

14.  Secondary:   Number of Subjects Reporting Unsolicited Adverse Events (AEs).   [ Time Frame: During the entire study period (From Month 0 up to Month 48). ]

15.  Secondary:   Number of Subjects With All Possible Pregnancy Outcomes   [ Time Frame: During the entire study period (From Month 0 up to Month 48). ]

16.  Secondary:   Number of Cervical Infection With HPV16 or HPV18.   [ Time Frame: During the first year of follow-up period ]
  Hide Outcome Measure 16

Measure Type Secondary
Measure Title Number of Cervical Infection With HPV16 or HPV18.
Measure Description Subjects were human papillomavirus (HPV) deoxyribonucleic acid (DNA) negative (DNA-) (by PCR) at Month 0 and Month 6 for the corresponding HPV-type
Time Frame During the first year of follow-up period  
Safety Issue No  

Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
The According-To-Protocol (ATP) cohort for efficacy included subjects with efficacy data available, who received 3 doses of vaccine, who were HPV DNA- for the corresponding type at enrollment and at the time of administration of the 3rd dose (Month 6) and who did not have a biopsy or treatment during the vaccination phase (prior to the Month 6).

Reporting Groups
  Description
Cervarix Group Subjects received 3 doses of Cervarix vaccine at study Months 0, 1 and 6. All the vaccine doses were administered intramuscularly in the deltoid region of the non-dominant arm.
Havrix Group Subjects received 3 doses of Havrix vaccine at study Months 0, 1 and 6. All the vaccine doses were administered intramuscularly in the deltoid region of the non-dominant arm.

Measured Values
    Cervarix Group     Havrix Group  
Number of Participants Analyzed  
[units: participants]
  2380     2420  
Number of Cervical Infection With HPV16 or HPV18.  
[units: Events]
   
HPV16 Cervical Infection (N=2242;2232)     21     37  
HPV18 Cervical Infection (N=2330;2347)     7     29  
HPV16 and/or 18 Cervical Infection (N=2380;2420)     27     64  

No statistical analysis provided for Number of Cervical Infection With HPV16 or HPV18.



17.  Secondary:   Number of Cervical Infection With HPV16 or HPV18.   [ Time Frame: During the second year of follow-up period ]

18.  Secondary:   Number of Cervical Infection With HPV16 or HPV18.   [ Time Frame: During the third year of follow-up period ]

19.  Secondary:   Number of Cervical Infection With HPV16 or HPV18.   [ Time Frame: From the fourth year follow-up period ]

20.  Secondary:   Number of Subjects Reporting Unsolicited Adverse Events (AEs).   [ Time Frame: within 30 days (Days 0-29) after vaccination ]


  Serious Adverse Events


  Other Adverse Events


  Limitations and Caveats
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Limitations of the study, such as early termination leading to small numbers of participants analyzed and technical problems with measurement leading to unreliable or uninterpretable data
The following analysis "occurence of histopathologically confirmed CIN2+ cases associated with HPV16 or HPV18 infection was not performed, in accordance with the Statistical Analysis Plan submitted to the FDA.


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