Side Specific Withdrawal Times for Colonoscopy: Impact on Adenoma Detection in the Proximal and Distal Colon

Colon Adenoma Clinical Trial

— SNOWCAT  

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT02819492
• Other study ID #: SNOWCAT
• Status: Completed
• Phase: N/A
• First received: June 28, 2016
• Last updated: April 8, 2017
• Start date: November 2014
• Est. completion date: April 2017

Study information

• Verified date: October 2016
• Source: Technische Universität München
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

Adenoma detection in the main goal of screening colonoscopy. In order to detect adenomas it is mandatory to spend a long enough time investigating the colonic mucosa. A minimum observation time of 6 minutes has been proposed as a quality criterion for screening colonoscopy. However, different locations of the colon (proximal, distal) may require specific observation time periods. The colon can be divided into a proximal (right) and distal (left) part. Until now, it is unclear whether observation time has a significant impact on adenoma detection in both parts of the colon. The aim of this study therefore is to conduct a trial in which side-specific observation times and adenoma detection rates are measured in order to investigate this correlation in particular for the right colon.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 500
• Est. completion date: April 2017
• Est. primary completion date: October 2016
• Accepts healthy volunteers: No
• Gender: All
• Age group: 40 Years to 90 Years

Eligibility

Inclusion Criteria:

• indication for colonoscopy

• age = 40 years

Exclusion Criteria:

• American Society of Anesthesiologists class IV or higher

• pregnant women

• indication for colonoscopy: inflammatory bowel disease

• indication for colonoscopy: polyposis syndrome

• indication for colonoscopy: emergency colonoscopy e.g. acute bleeding

• contraindication for polyp resection e.g. patients on warfarin

Related Conditions & MeSH terms

• Adenoma
• Colon Adenoma

Locations

Country	Name	City	State
Germany	II Medizinische Klinik am Klinikum rechts der Isar der Technischen Universität München	Munich

Sponsors (1)

Lead Sponsor	Collaborator
Technische Universität München

Country where clinical trial is conducted

Germany, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Adenoma detection rate in the proximal colon	After obtaining the histopathological diagnosis of resected polyps (approximately 3 -6 days) it can be determined whether the resected polyp contained adenomatous histology or not.	up to 2 weeks (participants will be followed for the duration of hospital stay or outpatient treatment, an expected average of 2 weeks)
Secondary	Polyp detection rate	a maximum of one day is expected for colonoscopy procedures	up to one day