- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00461760
HPV Testing for Cervical Cancer Screening Study (HPVFOCAL)
A Randomized Controlled Evaluation of HPV Testing for Cervical Cancer Screening
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
There is now an overwhelming body of data to show that HPV testing has the potential to improve the effectiveness of cervical cancer screening programs and thereby reduce rates of cervical cancer. As a result, there is a growing ethical dilemma in that we potentially have the means to prevent disease and death among Canadian women, and yet the studies that have been undertaken do not offer the standard of evidence that is required to change large-scale public health programs such as cervical cancer screening. In recognition of this, the Pan-Canadian Cervical Cancer Forum (PCCCF) has called for the evaluation of HPV testing within the context of a Canadian organised cervical cancer screening program. Given the potential health benefits that could be achieved, and that a pan-Canadian expert group has issued a consensus statement calling for the evaluation of HPV testing for primary screening, it is now an imperative that a properly designed and powered study be conducted to definitively establish whether it will provide the hypothesised health benefits within Canada.
The results of this trial will demonstrate whether or not the use of HPV testing as a single primary screening test within an organised Canadian cervical cancer screening program will be able to 1) provide further reductions in cervical cancer incidence, 2) allow the screening interval to be extended and 3) improve the cost-effectiveness of cervical cancer screening. If this trial demonstrates that HPV testing will provide these benefits, the BCCA will implement HPV testing as a single primary screening test within the provincial cervical cancer screening program and the trial will directly influence the provision of this service in BC. In addition, many other Canadian provinces and territories are either implementing or have plans to implement screening programs similar to the one in BC and by the time this trial is completed, many will have these programs operating. Therefore, the results of this trial will be directly applicable to these programs and constitute a demonstration project for the rest of Canada.
A list of women who are due for cervical screening will be sent to study collaborating Family Physicians (FPs) each month from the study centre in the provincial screening program. An invitation letter will be sent by the FP to potentially eligible women due for cervical cancer screening. If women are interested in participating, they will contact the study centre for more information. Study staff discuss the details of the trial with them, confirm eligibility and administer a short survey. Women who consent to the trial will visit the FP for their screening test and samples will be obtained and sent to the BC Central Laboratory Service (BC-CLS) where it will be randomized into one of the study arms:
Note: Recruitment to the safety arm was complete December 31, 2010 and from that point forward, women randomized 1:1 into the control or intervention arms only. A total of ~25,000 women (~9140 each in the Control and Intervention arms respectively, and ~6,000 in the Safety arm) will be enrolled in the FOCAL trial.
Control arm:
Sample tested with LBC.
- Those with negative results will be recalled for next screen at 2 years and if negative again, for the exit screen at 4 years. Those with positive cytology results have reflex HPV testing, or referral to colposcopy based on results.
Exit screen testing is both HPV and cytology testing
2-year safety-check arm: Sample tested for HPV.
- HPV negatives recalled at 2-years for the exit screen with cytology
Women who are HPV positive will have their residual LBC specimen processed for cytology and be managed according to the same protocol as HPV-positive women in the 4-year intervention arm.
4-year intervention arm: Sample tested for HPV.
- HPV negatives will be recalled at 4 years for their exit screen with HPV and cytology testing
- Women who are HPV positive will undergo reflex cytology testing and those cytology negative will be recalled at 12 months for HPV testing and cytology. At 12 mos, participants will be referred to colposcopy if > or =ASC-US or HPV positive. If HPV and cytology negative at 12 months returned to the routine screening pool for this arm and recalled for the exit screen at 4-years.
- Women who are HPV positive and > or = ASC-US will be referred to colposcopy and managed according to colposcopy results.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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British Columbia
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Vancouver, British Columbia, Canada
- Vancouver General Hospital
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Vancouver, British Columbia, Canada, V5Z 4G8
- Laurie Smith
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Vancouver, British Columbia, Canada
- BC Cancer
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Vancouver, British Columbia, Canada
- BC Center for Disease Control
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
Women from 25 to 65 years of age, registered with the Medical Services Plain in BC attending a collaborating healthcare provider for routine cervical screening in Metro Vancouver or Greater Victoria.
Exclusion Criteria:
- pregnant
- history of invasive cervical cancer
- no cervix
- HIV positive or on immunosuppressive treatments
- unable or unwilling to give informed consent
- Treatment of moderate or greater dysplasia within last 5 years
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: 1
Women with normal cytology at recruitment will be recalled for their next routine screen at 2 years and if negative again, for their exit screen at 4 years, all according to current provincial guidelines.
|
See Detailed Description.
See detailed description.
|
Active Comparator: 2
Women with abnormal cytology at recruitment or at the 2 year screen will be followed according to provincial guidelines based on their cytology results.
|
See Detailed Description.
See detailed description.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Histologically confirmed greater than or equal to CIN2 detected at 2 years in both the control and the safety-check arms.
Time Frame: 2 years
|
2 years
|
Histologically confirmed greater than or equal to CIN3 detected over the 4 years post recruitment in the control and intervention arms will be evaluated and compared as a surrogate marker for estimating reductions in the incidence of cervical cancer.
Time Frame: 4 years
|
4 years
|
Detection of histologically confirmed greater than or equal to CIN3 in the participants allocated to 6-month retesting.
|
|
The total estimated cost per woman screened and the total estimated cost per quality-adjusted life-year gained for each technology.
|
Secondary Outcome Measures
Outcome Measure |
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Clearance of HPV infection in women who are HPV positive at recruitment
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HPV type specific prevalence in the screening population
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Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Andrew Coldman, PhD, University of British Columbia
- Principal Investigator: Gina Ogilvie, MD, University of British Columbia
Publications and helpful links
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- H06-04032
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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