Ignite Creation Date:
2025-12-24 @ 11:31 PM
Ignite Modification Date:
2026-02-21 @ 8:40 AM
Study NCT ID:
NCT01487356
Status:
COMPLETED
Last Update Posted:
2011-12-07
First Post:
2011-08-03
Is NOT Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
Factors Associated With Short Withdrawal Time and Polyp Detection Rate During Colonoscopy
Sponsor:
Organization:
Raw JSON
{'hasResults': False, 'derivedSection': {'miscInfoModule': {'versionHolder': '2025-12-24'}, 'conditionBrowseModule': {'meshes': [{'id': 'D003111', 'term': 'Colonic Polyps'}], 'ancestors': [{'id': 'D007417', 'term': 'Intestinal Polyps'}, {'id': 'D011127', 'term': 'Polyps'}, {'id': 'D020763', 'term': 'Pathological Conditions, Anatomical'}, {'id': 'D013568', 'term': 'Pathological Conditions, Signs and Symptoms'}]}}, 'protocolSection': {'designModule': {'studyType': 'OBSERVATIONAL', 'designInfo': {'timePerspective': 'PROSPECTIVE'}, 'enrollmentInfo': {'type': 'ACTUAL', 'count': 802}}, 'statusModule': {'overallStatus': 'COMPLETED', 'startDateStruct': {'date': '2008-05'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2011-12', 'completionDateStruct': {'date': '2009-06', 'type': 'ACTUAL'}, 'lastUpdateSubmitDate': '2011-12-05', 'studyFirstSubmitDate': '2011-08-03', 'studyFirstSubmitQcDate': '2011-12-05', 'lastUpdatePostDateStruct': {'date': '2011-12-07', 'type': 'ESTIMATED'}, 'studyFirstPostDateStruct': {'date': '2011-12-07', 'type': 'ESTIMATED'}, 'primaryCompletionDateStruct': {'date': '2009-06', 'type': 'ACTUAL'}}, 'oversightModule': {'oversightHasDmc': False}, 'conditionsModule': {'keywords': ['Colonoscopy', 'quality assurance', 'withdrawal time', 'polyp detection rate'], 'conditions': ['Colon Polyps']}, 'descriptionModule': {'briefSummary': 'Colonoscopy withdrawal times are a critical element in determining quality of colonoscopy; however, few studies have evaluated specific factors that may influence the duration of withdrawal, and specifically short withdrawal times. Other factors affecting polyp detection rate, one element of quality of colonoscopy, also need further study. By collecting data on hundreds of colonoscopies performed by 9 endoscopists, our goal was to identify factors associated with withdrawal time, inappropriately short withdrawal times, and polyp detection rate during colonoscopy.', 'detailedDescription': "Background:\n\nColonoscopy withdrawal times are a critical element in determining quality of colonoscopy; however, few studies have evaluated specific factors that may influence the duration of withdrawal, and specifically short withdrawal times. Other factors affecting polyp detection rate, one element of quality of colonoscopy, also need further study.\n\nObjective:\n\nTo identify factors associated with withdrawal time, inappropriately short withdrawal times, and polyp detection rate during colonoscopy.\n\nDesign:\n\nData were prospectively collected (05/08-06/09) on 802 colonoscopies conducted by 9 blinded endoscopists, including patient age and sex, indication, colonoscope insertion and withdrawal time, biopsies performed, number/size of polyps and method of resection, bowel preparation quality, time of day, day of week, endoscopist, position of the procedure within the endoscopist's slate, and call status of the endoscopist.\n\nSetting:\n\nThis study was conducted at a single tertiary care hospital, St. Paul's Hospital, in Vancouver, British Columbia."}, 'eligibilityModule': {'sex': 'ALL', 'stdAges': ['CHILD', 'ADULT', 'OLDER_ADULT'], 'samplingMethod': 'NON_PROBABILITY_SAMPLE', 'studyPopulation': "All adult patients undergoing colonoscopy at St. Paul's Hospital in Vancouver, BC.", 'healthyVolunteers': False, 'eligibilityCriteria': "Inclusion Criteria:\n\n* All adult patients undergoing colonoscopy at St. Paul's Hospital in Vancouver, BC.\n\nExclusion Criteria:\n\n* Exclusion criteria were prior colon resection and repeat colonoscopy for the purpose of endoscopic therapy for known lesions."}, 'identificationModule': {'nctId': 'NCT01487356', 'briefTitle': 'Factors Associated With Short Withdrawal Time and Polyp Detection Rate During Colonoscopy', 'organization': {'class': 'OTHER', 'fullName': 'University of British Columbia'}, 'officialTitle': 'Factors Associated With Short Withdrawal Time and Polyp Detection Rate During Colonoscopy', 'orgStudyIdInfo': {'id': 'H10-00312'}}, 'armsInterventionsModule': {'armGroups': [{'label': 'Patients undergoing colonoscopy', 'description': "Data was collected on all adult patients undergoing outpatient colonoscopy at St. Paul's Hospital from May 2008 to June 2009. Exclusion criteria were prior colon resection and repeat colonoscopy for the purpose of endoscopic therapy for known lesions.", 'interventionNames': ['Other: No intervention']}], 'interventions': [{'name': 'No intervention', 'type': 'OTHER', 'description': "Colonoscopies were conducted as per the endoscopist's usual practice. No change in protocol was expected.", 'armGroupLabels': ['Patients undergoing colonoscopy']}]}, 'contactsLocationsModule': {'locations': [{'zip': 'V6Z 1Y6', 'city': 'Vancouver', 'state': 'British Columbia', 'country': 'Canada', 'facility': "St. Paul's Hospital", 'geoPoint': {'lat': 49.24966, 'lon': -123.11934}}], 'overallOfficials': [{'name': 'Rob Enns, MD', 'role': 'PRINCIPAL_INVESTIGATOR', 'affiliation': 'University of British Columbia'}]}, 'sponsorCollaboratorsModule': {'leadSponsor': {'name': 'University of British Columbia', 'class': 'OTHER'}, 'responsibleParty': {'type': 'SPONSOR'}}}}