A Study on a New Indicator for Assessing the Difficulty of Colonoscopy Insertion and Its Related Factors

November 13, 2025 updated by: Second Hospital of Jilin University

This study will include adult patients undergoing painless colonoscopy at our hospital. The time required for endoscope insertion to reach the cecum (Cecal Intubation Time, CIT) by physicians of different experience levels will be recorded. CIT roughly reflects the difficulty of colonoscope insertion, which holds important clinical significance and is associated with factors such as abdominal pain, bloating, and the degree of intestinal adhesion. However, due to confounding factors such as operator experience and equipment variability, the objectivity of CIT as an indicator of insertion difficulty is reduced.

In this study, all patients' CIT data will be standardized using three different methods: Z-score standardization, median standardization, and quantile normalization. The goal is to determine which standardized form of CIT can more objectively reflect insertion difficulty and its correlation with important clinical indicators.

The purpose of this study is to establish a novel indicator that can objectively assess colonoscope insertion difficulty across different operating environments, thereby providing a scientific basis for the development of clinical treatment strategies.

Study Overview

Status

Active, not recruiting

Conditions

Study Type

Observational

Enrollment (Estimated)

2000

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
    • Jilin
      • Changchun, Jilin, China, 130000
        • Department of Gastroenterology and Digestive Endoscopy Center, The Second Hospital of Jilin University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Patients who undergo colonoscopy at the Second Hospital of Jilin University

Description

Inclusion Criteria:

  • Patients who voluntarily undergo colonoscopy

Exclusion Criteria:

  • patients who failed to complete the colonoscopy

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Junior Doctor Group
Senior Doctor Group

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Time Required for Insertion to the Cecum (Cecal Intubation Time, CIT)
Time Frame: From enrollment to the end of treatment at 1 weeks
From enrollment to the end of treatment at 1 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Second Hospital of Jilin University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

June 1, 2025

Primary Completion (Estimated)

April 1, 2026

Study Completion (Estimated)

April 1, 2026

Study Registration Dates

First Submitted

November 13, 2025

First Submitted That Met QC Criteria

November 13, 2025

First Posted (Estimated)

November 14, 2025

Study Record Updates

Last Update Posted (Estimated)

November 14, 2025

Last Update Submitted That Met QC Criteria

November 13, 2025

Last Verified

November 1, 2025

More Information

Terms related to this study

Other Study ID Numbers

  • 2024467

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

Protect patients' privacy

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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