Screening for HIV-Associated Anal Cancer (TRACE)
![]() |
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT00188292 |
Recruitment Status
:
Completed
First Posted
: September 16, 2005
Last Update Posted
: March 8, 2016
|
Tracking Information | ||||
---|---|---|---|---|
First Submitted Date | September 9, 2005 | |||
First Posted Date | September 16, 2005 | |||
Last Update Posted Date | March 8, 2016 | |||
Study Start Date | August 2002 | |||
Actual Primary Completion Date | June 2012 (Final data collection date for primary outcome measure) | |||
Current Primary Outcome Measures | Not Provided | |||
Original Primary Outcome Measures | Not Provided | |||
Change History | Complete list of historical versions of study NCT00188292 on ClinicalTrials.gov Archive Site | |||
Current Secondary Outcome Measures | Not Provided | |||
Original Secondary Outcome Measures | Not Provided | |||
Current Other Outcome Measures | Not Provided | |||
Original Other Outcome Measures | Not Provided | |||
Descriptive Information | ||||
Brief Title | Screening for HIV-Associated Anal Cancer | |||
Official Title | Screening for HIV-Associated Anal Cancer | |||
Brief Summary | Cancer of the anus occurs at very high rates in young men with HIV and is caused by a virus called human papillomavirus (HPV). Anal cancer has increased during the HIV epidemic despite effective therapies for HIV. Unfortunately, anal cancer presents at a late stage because there is no screening program to find it at an early stage. Rates of other cancers such as cervical cancer have been reduced through the use of Pap smears. The researchers' plan is to do the same type of screening for anal cancer as has been done for cervical cancer. If abnormalities are found then treatment can be started. The researchers hope that this approach will help to prevent anal cancer. Testing for HPV will also be done to see if this helps to detect early cancer and to see how accurate different tests, pathologists and clinical examiners are at detecting and agreeing on any abnormalities. The main outcome is the presence of any pre-cancerous or early cancer changes as determined by high resolution anoscopy (HRA). HRA involves looking through a microscope into the anus and this allows very tiny changes to be identified. Pieces of tissue can then be taken to make a definite diagnosis. |
|||
Detailed Description | Anal cancer occurs at a rate which is 163-fold greater in young men with HIV. It is caused by another virus, HPV. The incidence has doubled during the HIV epidemic and is not decreasing despite effective antiretroviral therapy. It is important to have an anal cancer screening program to detect precancerous lesions; this has been done for the prevention of cervical cancer through the use of cervical Pap smears.We will do anal Pap smears, HPV testing and perform high resolution anoscopy for a magnified and detailed view of the anus. Biopsies are done and early treatment is initiated. It is anticipated that this approach will help to prevent anal cancer. SPECIFIC AIMS: The aim of this study is to determine the accuracy of pathology and human papillomavirus (HPV) testing in identifying precancerous changes in HIV positive men. The primary question is to determine how good the anal Pap smears are for detecting precancerous changes in the anus. Secondary questions involve: (a) determination of the test characteristics of the anal Pap smear, (b) assessment of agreement in visually detecting pre-cancers by the anoscopists and, (c) a determination of the viral and patient characteristics that predict pre-cancer. STUDY DESIGN: This is a cross-sectional survey of HIV positive men with a history of anal receptive intercourse who are attending several Toronto HIV clinics. Relevant information is collected as well as anal specimens for assessment. There is a multidisciplinary team who have the appropriate expertise in these studies. OUTCOME MEASURES and STATISTICAL ANALYSIS: The primary outcome measure is the presence of pre-cancerous changes as determined by high resolution anoscopy. We need to screen 425 subjects in order to find 100 patients with high grade pre-cancerous changes. Secondary outcome analyses include specificity, positive predictive value and negative predictive value of cytology and HPV DNA testing to detect histologically confirmed pre-cancerous changes or cancer. |
|||
Study Type | Observational | |||
Study Design | Observational Model: Cohort Time Perspective: Prospective |
|||
Target Follow-Up Duration | Not Provided | |||
Biospecimen | Not Provided | |||
Sampling Method | Probability Sample | |||
Study Population | HIV + MSM who had High Resolution Anoscopy | |||
Condition |
|
|||
Intervention | Not Provided | |||
Study Groups/Cohorts |
|
|||
Publications * | Not Provided | |||
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline. |
||||
Recruitment Information | ||||
Recruitment Status | Completed | |||
Actual Enrollment |
401 | |||
Original Enrollment |
425 | |||
Actual Study Completion Date | June 2012 | |||
Actual Primary Completion Date | June 2012 (Final data collection date for primary outcome measure) | |||
Eligibility Criteria | Inclusion Criteria:
Exclusion Criteria:
|
|||
Sex/Gender |
|
|||
Ages | 18 Years and older (Adult, Senior) | |||
Accepts Healthy Volunteers | No | |||
Contacts | Contact information is only displayed when the study is recruiting subjects | |||
Listed Location Countries | Canada | |||
Removed Location Countries | ||||
Administrative Information | ||||
NCT Number | NCT00188292 | |||
Other Study ID Numbers | REB #02-0325-B #016005 ( Other Grant/Funding Number: CANFAR ) |
|||
Has Data Monitoring Committee | Yes | |||
U.S. FDA-regulated Product | Not Provided | |||
IPD Sharing Statement | Not Provided | |||
Responsible Party | University Health Network, Toronto | |||
Study Sponsor | University Health Network, Toronto | |||
Collaborators |
|
|||
Investigators |
|
|||
PRS Account | University Health Network, Toronto | |||
Verification Date | March 2016 |