NCT07467928

Brief Summary

The goal of this prospective study is to to evaluate the prevalence of metachronous advanced colonic lesions in subsequent surveillance colonoscopies in patients who had previously undergone AI-assisted colonoscopy to conventional colonoscopy examinations. The main question it aims to answer is whether employing AI-assisted colonoscopy can decrease the likelihood of metachronous advanced colonic lesions during subsequent surveillance colonoscopies. Researchers will compare patient who undergo conventional colonoscopy in previous colonoscopy to see if AI-assisted colonoscopy can decrease the likelihood of metachronous advanced colonic lesions during subsequent surveillance colonoscopies. Participants will undergo surveillance colonoscopy to assess the presence of metachronous advanced colonic lesion

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
404

participants targeted

Target at P75+ for not_applicable

Timeline
19mo left

Started Jul 2025

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress41%
Jul 2025Feb 2028

Study Start

First participant enrolled

July 1, 2025

Completed
8 months until next milestone

First Submitted

Initial submission to the registry

March 8, 2026

Completed
4 days until next milestone

First Posted

Study publicly available on registry

March 12, 2026

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2027

Expected
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

February 28, 2028

Last Updated

March 12, 2026

Status Verified

March 1, 2026

Enrollment Period

2.5 years

First QC Date

March 8, 2026

Last Update Submit

March 8, 2026

Conditions

Keywords

Colonic polypsArtificial intelligenceSurveillance colonoscopyadvanced metachonous colonic lesion

Outcome Measures

Primary Outcomes (1)

  • the cumulative risk of metachronous advanced colonic lesions

    the cumulative risk of metachronous advanced colonic lesions

    Three years

Secondary Outcomes (3)

  • cumulative risk of non-advanced metachronous adenoma and serrated lesions

    three years

  • mean number of metachronous advanced colonic lesions

    three years

  • mean number of metachronous adenomas, advanced adenomas, serrated lesions, and advanced serrated lesions

    three years

Study Arms (1)

Surveillance colonoscopy

OTHER

Surveillance colonoscopy

Procedure: Suveillance colonoscopy

Interventions

Surveillance colonoscopy

Surveillance colonoscopy

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Eligible participants are those who were previously enrolled and completed our randomized controlled trial comparing AI-assisted and conventional colonoscopy

You may not qualify if:

  • Index trial: Lui TK, Lam CP, To EW, Ko MK, Tsui VWM, Liu KS, et al. Endocuff With or Without Artificial Intelligence-Assisted Colonoscopy in Detection of Colorectal Adenoma: A Randomized Colonoscopy Trial. Am J Gastroenterol. 2024;119(7):1318-25

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Queen Mary Hospital

Hong Kong, Hong Kong

RECRUITING

MeSH Terms

Conditions

Colonic Polyps

Condition Hierarchy (Ancestors)

Intestinal PolypsPolypsPathological Conditions, AnatomicalPathological Conditions, Signs and Symptoms

Central Study Contacts

Thomas KL Clinical Assoicate Professor, MD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Clinical Associate Professor

Study Record Dates

First Submitted

March 8, 2026

First Posted

March 12, 2026

Study Start

July 1, 2025

Primary Completion (Estimated)

December 31, 2027

Study Completion (Estimated)

February 28, 2028

Last Updated

March 12, 2026

Record last verified: 2026-03

Locations