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Detection of Endoscopic Resection Scars and Delineation of Recurrence is Trainable

NCT06193356 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 141

Last updated 2025-11-25

No results posted yet for this study

Summary

Colorectal cancer is prevented by colonoscopy and polypectomy. Failure to recognize the endoscopic resection scar after Endoscopic Mucosal Resection (EMR) risks unrecognized recurrent or residual adenoma (RRA), which may propagate into post-colonoscopy colorectal cancer. Expert series suggest scar recognition and interrogation is well performed with a high negative predictive value of endoscopic imaging vs histopathology. In this study the authors will investigate the performance of endoscopic imaging in detecting RRA at an endoscopic resection scar amongst general endoscopist and the impact of a learning intervention on recognition of RRA.

After consent is given, the participant will open the online survey and fill this in.

First the participant will be asked to create a pseudonym (name+year of birth) and fill in their demographical information (Grade, years in current role, colonoscopy experience, experience of colonic tissue resection, country of employment

The first 15 pictures will be shown prior to a learning intervention. For each picture the same questions will be asked:

* Is this an endoscopic resection scar?
* Based on this image does the scar demonstrate evidence of residual or recurrent adenoma (RRA)?
* What is your level of confidence?
* If the scar shows RRA, how would you treat it? (skip if you feel no RRA).
* If the scar does not show RRA do you feel there is another diagnosis? After the first 15 pictures a video-based learning tool will be shown on detection of RRA.

After the learning tool 15 different pictures will be shown, the same questions will be asked. All responses will be collected by the investigators. Statistical analysis will be performed using visual studio code (Microsoft, Redmond, USA) Images will be selected from the 'Australian Colonic LSL Endoscopic Resection Study' (ACE) database, which is an international multicentre registry of images and videos for retrospective analysis of colonic lesions. Images, videos, procedural information, and histopathological data are stored on a secure online web portal after written informed consent of every participating patient.

Conditions

Interventions

OTHER

Learning tool

Video based learning tool about detection of endoscopic resection scars and recurrence.

Sponsors & Collaborators

  • University Hospital, Ghent

    lead OTHER

Principal Investigators

  • David J Tate, PhD · UZ Ghent

Study Design

Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2024-11-11
Primary Completion
2026-01-01
Completion
2027-01-01

Countries

  • Belgium

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06193356 on ClinicalTrials.gov