Assessing AI's Role in Colonoscopy Withdrawal Time and Adenoma Detection

A Prospective Evaluation of the Correlation Between Real Time Artificial Intelligence-derived Effective Withdrawal Time and Adenoma Detection Rate

Observational The University of Hong Kong · NCT06345105

This study is testing if using artificial intelligence during colonoscopy can help doctors find more polyps and improve the time they spend checking the colon in people aged 40 and older.

Quick facts

Study typeObservational
Enrollment198 (estimated)
Ages40 Years and up
SexAll
SponsorThe University of Hong Kong Academic / other
Locations1 site (Hong Kong)
Trial IDNCT06345105 on ClinicalTrials.gov

What this trial studies

This observational study aims to evaluate the relationship between artificial intelligence-derived effective withdrawal time (EWT) during colonoscopy and the adenoma detection rate (ADR) of endoscopists. Participants aged 40 and above will undergo outpatient colonoscopy, where their bowel preparation will be monitored, and the colonoscopy video will be analyzed by AI to determine the EWT. The study will compare the AI-derived EWT with standard withdrawal times and assess various colonoscopy outcomes, including polyp detection rates. The goal is to enhance the effectiveness of colonoscopy procedures through real-time AI monitoring.

Who should consider this trial

Good fit: Ideal candidates are adults aged 40 or older who are scheduled for outpatient colonoscopy.

Not a fit: Patients with a history of inflammatory bowel disease, colorectal cancer, or other significant gastrointestinal conditions may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could improve adenoma detection rates during colonoscopy, leading to better early detection of colorectal cancer.

How similar studies have performed: While the use of AI in colonoscopy is a growing field, this specific approach to measuring withdrawal time and its correlation with adenoma detection rates is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* All adult patients, aged 40 or above, undergoing outpatient colonoscopy will be recruited

Exclusion Criteria:

* history of inflammatory bowel disease
* history of colorectal cancer
* previous bowel resection (apart from appendectomy)
* Peutz-Jeghers syndrome, familial adenomatous polyposis or other polyposis syndromes
* bleeding tendency or severe comorbid illnesses for which polypectomy is considered unsafe.
* Cecum could not be intubated for various reasons
* Poor bowel preparation with Boston Bowel Preparation Scale (BBPS) \< 6

Where this trial is running

Hong Kong

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Colon PolypColon AdenomaArtificial IntelligenceWithdrawal time
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.