NCT04350840

Brief Summary

Accurate optical diagnosis of colorectal polyps could allow a "resect and discard" strategy based on the results of the optical biopsy. Even though intensive training for optical diagnosis, there is still wide variability in individual endoscopists to meet the PIVI thresholds. The investigators with experience of prior optical diagnosis training perform new education and drill to apply proper high confidence according to their decision time. After the education program, the investigators prospectively evaluate real-time optical biopsy analysis of polyps in 8 academic gastroenterologists.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
8

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Feb 2020

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 1, 2020

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

March 22, 2020

Completed
26 days until next milestone

First Posted

Study publicly available on registry

April 17, 2020

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 31, 2020

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2020

Completed
Last Updated

March 2, 2022

Status Verified

February 1, 2022

Enrollment Period

9 months

First QC Date

March 22, 2020

Last Update Submit

February 14, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • PIVI threshold

    Negative predictive value for the prediction of nonneoplastic polyp and concordance of surveillance intervals for diminutive polyps diagnosed optically with high confidence

    12 months

Study Arms (1)

Feedback

EXPERIMENTAL

Participating endoscopists will make high confidence diagnosis according to their judgment time

Behavioral: feedback

Interventions

feedbackBEHAVIORAL

feedback of optical diagnosis performance per 3 month

Feedback

Eligibility Criteria

Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Board-certified gastroenterologists
  • Endoscopists who finished ex-vivo optical diagnosis training

You may not qualify if:

  • Inflammatory bowel disease
  • Previous colon cancer history
  • Previous colon op. history
  • Melanosis coli

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Healthcare System Gangnam Center, Seoul National University Hospital

Seoul, South Korea

Location

Related Publications (2)

  • Bae JH, Lee C, Kang HY, Kwak MS, Doo EY, Seo JY, Song JH, Yang SY, Yang JI, Lim SH, Yim JY, Lim JH, Chung GE, Chung SJ, Jin EH, Park B, Kim JS. Improved Real-Time Optical Diagnosis of Colorectal Polyps Following a Comprehensive Training Program. Clin Gastroenterol Hepatol. 2019 Nov;17(12):2479-2488.e4. doi: 10.1016/j.cgh.2019.02.019. Epub 2019 Feb 14.

    PMID: 30772588BACKGROUND
  • Kim J, Lim SH, Kang HY, Song JH, Yang SY, Chung GE, Jin EH, Choi JM, Bae JH. Impact of 3-second rule for high confidence assignment on the performance of endoscopists for the real-time optical diagnosis of colorectal polyps. Endoscopy. 2023 Oct;55(10):945-951. doi: 10.1055/a-2073-3411. Epub 2023 May 12.

MeSH Terms

Conditions

Colonic Polyps

Condition Hierarchy (Ancestors)

Intestinal PolypsPolypsPathological Conditions, AnatomicalPathological Conditions, Signs and Symptoms

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SEQUENTIAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

March 22, 2020

First Posted

April 17, 2020

Study Start

February 1, 2020

Primary Completion

October 31, 2020

Study Completion

December 31, 2020

Last Updated

March 2, 2022

Record last verified: 2022-02

Data Sharing

IPD Sharing
Will not share

Locations