- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01894191
Comparing the Adenoma Detection Rate With Air Insufflation, Water Immersion and Water Exchange
June 27, 2016 updated by: Yu-Hsi hsieh, Dalin Tzu Chi General Hospital
A Randomized, Controlled Trial Comparing the Adenoma Detection Rate With Air Insufflation, Water Immersion and Water Exchange During Colonoscopy
Interval (missed) cancers and lower than expected mortality reduction of proximal colon cancers in the United States and elsewhere after screening colonoscopy drew attention to quality indicators.
Missed adenomas which are more likely to be in the proximal colon may be contributing factors.
An independent predictor of the risk of interval cancers is adenoma detection rate.
In pilot observations, the investigators showed that water exchange enhanced adenoma detection in the right colon (cecum to hepatic flexure).
This prospective, randomized controlled trial will compare water exchange with water immersion and traditional air insufflation in patients undergoing colonoscopy.
The investigators test the hypothesis that compared with air insufflation and water immersion, water exchange produces a significantly higher adenoma detection rate in the right colon.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed Description
All of the procedures will be recorded and stored as digital files.
Study Type
Interventional
Enrollment (Actual)
651
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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Chia-Yi, Taiwan, 622
- Dalin Tzu Chi General Hospital
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California
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North Hills, California, United States, 91343
- Sepulveda Ambulatory Care Center, Veterans Affairs Greater Los Angeles Healthcare System
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
20 years to 80 years (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Patients undergoing colonoscopy performed by the participating endoscopists
Exclusion Criteria:
- obstructive lesions of the colon known before colonoscopy
- massive ascites
- past history of partial colectomy
- refusal to provide written informed consent
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: air insufflation
Air insufflation will be used throughout whole procedure of colonoscopy
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Insufflation during colonoscopy including insertion phase
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Active Comparator: water immersion
Water will be infused during the insertion phase and removed during withdrawal phase of colonoscopy.
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Water will infused during insertion phase and removed during withdrawal phase of colonoscopy
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Active Comparator: water exchange
Water will be infused and removed during insertion phase of colonoscopy
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Water will infused and removed during insertion phase of colonoscopy
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
adenoma detection rate
Time Frame: one week
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one week
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
adenoma detection rate in proximal colon
Time Frame: one week
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the proportion of patients with the presence of adenoma in the proximal colon
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one week
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Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
post-procedure discomfort and 30 days complication rate
Time Frame: 30 days
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telephone follow up for post-procedure discomfort and 30 days complication rate
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30 days
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Collaborators
Investigators
- Principal Investigator: Yu-Hsi Hsieh, MD, Buddhist Dalin Tzu Chi Hospital
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
General Publications
- Bressler B, Paszat LF, Vinden C, Li C, He J, Rabeneck L. Colonoscopic miss rates for right-sided colon cancer: a population-based analysis. Gastroenterology. 2004 Aug;127(2):452-6. doi: 10.1053/j.gastro.2004.05.032.
- Stock C, Pulte D, Haug U, Brenner H. Subsite-specific colorectal cancer risk in the colorectal endoscopy era. Gastrointest Endosc. 2012 Mar;75(3):621-30. doi: 10.1016/j.gie.2011.10.025.
- Leung FW, Amato A, Ell C, Friedland S, Harker JO, Hsieh YH, Leung JW, Mann SK, Paggi S, Pohl J, Radaelli F, Ramirez FC, Siao-Salera R, Terruzzi V. Water-aided colonoscopy: a systematic review. Gastrointest Endosc. 2012 Sep;76(3):657-66. doi: 10.1016/j.gie.2012.04.467.
- Radaelli F, Paggi S, Amato A, Terruzzi V. Warm water infusion versus air insufflation for unsedated colonoscopy: a randomized, controlled trial. Gastrointest Endosc. 2010 Oct;72(4):701-9. doi: 10.1016/j.gie.2010.06.025.
- Hsieh YH, Lin HJ, Tseng KC. Limited water infusion decreases pain during minimally sedated colonoscopy. World J Gastroenterol. 2011 May 7;17(17):2236-40. doi: 10.3748/wjg.v17.i17.2236.
- Hsieh YH, Tseng CW, Hu CT, Koo M, Leung FW. Prospective multicenter randomized controlled trial comparing adenoma detection rate in colonoscopy using water exchange, water immersion, and air insufflation. Gastrointest Endosc. 2017 Jul;86(1):192-201. doi: 10.1016/j.gie.2016.12.005. Epub 2016 Dec 15.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
May 1, 2013
Primary Completion (Actual)
December 1, 2015
Study Completion (Actual)
December 1, 2015
Study Registration Dates
First Submitted
July 3, 2013
First Submitted That Met QC Criteria
July 9, 2013
First Posted (Estimate)
July 10, 2013
Study Record Updates
Last Update Posted (Estimate)
June 28, 2016
Last Update Submitted That Met QC Criteria
June 27, 2016
Last Verified
June 1, 2016
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- DalinTCGH-hsieh-03
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
product manufactured in and exported from the U.S.
No
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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