Status and phase
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About
RATIONALE: Chemoprevention is the use of certain drugs to keep cancer form forming, growing, or coming back. Vaccines may help the body build an effective immune response against human papillomavirus and may be effective in preventing cervical intraepithelial neoplasia or cervical cancer. It is not yet known whether human papillomavirus vaccine is more effective than hepatitis A vaccine in preventing cervical intraepithelial neoplasia or cervical cancer.
PURPOSE: This randomized phase III trial is studying human papillomavirus vaccine to see how well it works compared to hepatitis A vaccine in preventing cervical intraepithelial neoplasia or cervical cancer in younger healthy participants.
Full description
OBJECTIVES:
Primary
•Demonstrate the efficacy of the candidate vaccine, human papillomavirus 16/18 (HPV 16/18) L1 virus-like particle (VLP)/AS04 vaccine compared with control in preventing grade 2 or 3 cervical intraepithelial neoplasia, adenocarcinoma in situ of the cervix, or invasive cervical cancer (CIN2+) associated with HPV 16 or HPV 18 cervical infection in younger healthy participants who are negative for HPV DNA by polymerase chain reaction (PCR) for the corresponding HPV type at months 0 and 6.
Secondary
OUTLINE: This is a randomized, controlled, double-blind, parallel-group study. Participants are randomized to 1 of 2 treatment arms.
After completion of study treatment, participants are followed at 6 months and then at least annually for 3 years.
PROJECTED ACCRUAL: Approximately 7,500 participants will be accrued for this study.
Enrollment
Sex
Ages
Volunteers
Inclusion and exclusion criteria
DISEASE CHARACTERISTICS:
•Healthy participants
Deemed to be in good general health by history and physical examination
•Resident of Guanacaste Province of Costa Rica and surrounding areas
Must remain a resident for ≥ 6 months after the first study vaccination
PATIENT CHARACTERISTICS:
Age
Performance status
•Not specified
Life expectancy
•Not specified
Hematopoietic
•Not specified
Hepatic
Renal
Cardiovascular
No acute or chronic clinically significant cardiovascular function abnormality by physical examination or laboratory findings Pulmonary
No acute or chronic clinically significant pulmonary function abnormality by physical examination or laboratory findings Immunology
No history of allergic disease
No history of autoimmune disorder requiring treatment
No history of allergic reaction (e.g., difficulty breathing) to any vaccine
No suspected allergy or reaction likely to be exacerbated by a component of the study vaccines (e.g., 2-phenoxyethanol or neomycin)
No hypersensitivity to latex
No diagnosis or suspicion of any immunodeficient condition by medical history or physical examination Other
Not pregnant or nursing
◦No delivery within the past 3 months
Negative pregnancy test
Fertile patients must use effective contraception for 30 days before, during, and for 60 days after completion of study treatment
Able to speak or understand Spanish
Mentally competent
Able to undergo pelvic exam (i.e., no heavy bleeding [menstruation or otherwise] or heavy vaginal discharge)
No history of cancer requiring treatment
No history of diabetes requiring treatment
No history of other chronic conditions requiring treatment
No acute or chronic clinically significant neurologic function abnormality by physical examination or laboratory findings
No other acute disease
No fever ≥ 37.5º C
PRIOR CONCURRENT THERAPY:
Biologic therapy
Chemotherapy
•Not specified
Endocrine therapy
Radiotherapy
•Not specified
Surgery
•No prior hysterectomy
Other
Primary purpose
Allocation
Interventional model
Masking
7,466 participants in 2 patient groups
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Data sourced from clinicaltrials.gov
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