NCT02693886

Brief Summary

Individualized colonoscopy withdrawal time is determined based on the different grade of physician experience and quality of bowel preparation.

Trial Health

35
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
10,000

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Apr 2016

Status
unknown

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

First Submitted

Initial submission to the registry

January 27, 2016

Completed
1 month until next milestone

First Posted

Study publicly available on registry

February 29, 2016

Completed
1 month until next milestone

Study Start

First participant enrolled

April 1, 2016

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2017

Completed
Last Updated

February 29, 2016

Status Verified

January 1, 2016

Enrollment Period

1.7 years

First QC Date

January 27, 2016

Last Update Submit

February 26, 2016

Conditions

Outcome Measures

Primary Outcomes (1)

  • Detection rate of polyps in different withdraw time

    through study completion, an average of 1 year

Secondary Outcomes (1)

  • Detection rate of polyps in different experiment levels of examiners

    through study completion, an average of 1 year

Study Arms (4)

A group

Experience of endoscopist: \>2000 cases

Other: doctor experience

B group

Experience of endoscopist:between 1000 and 2000 cases

Other: doctor experience

C group

Experience of endoscopist:between 500 and 1000 cases

Other: doctor experience

D group

Experience of endoscopist:\<500 cases

Other: doctor experience

Interventions

A groupB groupC groupD group

Eligibility Criteria

Age40 Years - 80 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

1. greater than the age of 40; 2. Pathology and endoscopic data recorded available and detailed; 3. Whole bowel staining endoscopy is not done.

You may qualify if:

  • Greater than the age of 40;
  • Pathology and endoscopic data recorded available and detailed;
  • Whole bowel staining endoscopy is not done.

You may not qualify if:

  • Not reach the ileocecal junction;
  • Colorectal cancer;
  • Familial adenomatous polyposis;
  • Inflammatory bowel disease;
  • Part of the bowel resection.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Colonic Polyps

Condition Hierarchy (Ancestors)

Intestinal PolypsPolypsPathological Conditions, AnatomicalPathological Conditions, Signs and Symptoms

Study Design

Study Type
observational
Observational Model
CASE ONLY
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 27, 2016

First Posted

February 29, 2016

Study Start

April 1, 2016

Primary Completion

December 1, 2017

Study Completion

December 1, 2017

Last Updated

February 29, 2016

Record last verified: 2016-01

Data Sharing

IPD Sharing
Will share