Adenomatous Polyp Clinical Trial
Official title:
A Multicenter, Prospective, Randomized Controlled Trial for the Detection of Colon Polyps and Predicting Histology
In this study the investigators hypothesize that High Definition White Light colonoscopy and
narrow band imaging (NBI) will detect a higher number of adenomas compared to standard
definition white light colonoscopy. NBI will have a higher accuracy in predicting polyp
histology compared to high definition colonoscopy and standard colonoscopy.
Specific Aim 1 - To compare the prevalence of adenomas detected by standard colonoscopy,
high-definition white light colonoscopy and NBI.
Specific Aim 2 - To compare the number of adenoma detected per subject by standard
colonoscopy, high-definition white light colonoscopy and NBI.
Specific Aim 3 - To compare the accuracy of predicting polyp histology between standard
colonoscopy, high-definition white light colonoscopy and NBI by evaluating the surface
mucosal and vascular patterns during the procedure.
Specific Aim 4 - To determine the inter-observer agreement between investigators for the
recognition of various polyp patterns
Status | Completed |
Enrollment | 630 |
Est. completion date | December 2009 |
Est. primary completion date | November 2009 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Both |
Age group | 18 Years and older |
Eligibility |
Inclusion criteria: - referral for screening or surveillance colonoscopy - the ability to provide informed consent Exclusion criteria: - prior surgical resection of any portion of colon - prior history of colon cancer - history of inflammatory bowel disease - use of anti-platelet agents or anticoagulants that precludes removal of polyps during the procedure - poor general condition or any other reason to avoid prolonged procedure time - history of polyposis syndrome or HNPCC - inability to give informed consent. - Inadequate bowel preparation |
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Diagnostic
Country | Name | City | State |
---|---|---|---|
United States | Kansas City VA Medical Center | Kansas City | Missouri |
United States | Barnes Jewish Hospital | St. Louis | Missouri |
Lead Sponsor | Collaborator |
---|---|
Kansas City Veteran Affairs Medical Center | American Society for Gastrointestinal Endoscopy, Midwest Biomedical Research Foundation |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | The prevalence of adenomas in the three arms of the study. | Number of subjects with adenomas in the three arms of the study | 2 years | No |
Secondary | Secondary outcome will be number of adenomas detected per subject in the three arms, the sensitivity, specificity, and accuracy of predicting polyp histology real time by the three imaging modalities. | 2 years | No |
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