Comparison of Adenoma Detection Miss Rates at Colonoscopy Associated With Different Withdrawal Times

Completed · Not applicable

Conditions studied: Adenoma and/or Adenocarcinoma, Adenoma

In brief

The objective of this study is to determine the optimal withdrawal time for colonoscopy. A 6-minute withdrawal time is currently the standard of care but has only been evaluated in an observational fashion. The investigators believe that this should be validated in a standardized fashion. If the benefits of a 6 minute withdrawal are proven in this study (ie a low polyp/adenoma miss rate and a high polyp/adenoma detection rate), then this will support widespread adoption of a 6 minute withdrawal as the standard of care. This in turn may decrease the occurence of 'interval colon cancers', which are early colon cancers arising in subjects despite their having undergone colonoscopy. Our hypothesis is that the polyp/adenoma detection rate will be unacceptably low and the polyp/adenoma miss rate will be unacceptably high in the 3-minute withdrawal group when compared to the 6-minute withdrawal group.

Key facts

Study ID

NCT01802008

Run by

Stanford University

People needed

200

Starts

2012-09-01

Expected to finish

2013-08-01

Last updated by the study team

2015-04-30

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Age > 18
• Already scheduled for colonoscopy

You may not qualify if…

• Age < 18
• Pregnant women
• Mentally disabled
• Decisionally challenged
• Cancer subjects
• Healthy volunteers
• Prisoners

Where it is running

• Veterans Administration Hospital (Palo Alto) — Palo Alto, California, United States
• Stanford University — Palo Alto, California, United States

Full record on ClinicalTrials.gov

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