A Comparison of an Ultra-thin and Standard Colonoscope in Achieving Caecal Intubation

July 29, 2013 updated by: James Yun-wong Lau, Chinese University of Hong Kong

A Study to Assess the Success Rate of Ultra-thin Colonoscopy Versus Conventional Colonoscopy for the First or Rescue Colonoscopy for Unsuccessful Procedures (UTC Study).

The aim of the study is to study the caecal intubation rate of a prototype ultra-thin colonoscope compared to a standard colonoscope and to study usefulness of this new colonoscope as a rescue instrument for failed initial colonoscopy with a standard colonoscope and to study the patient satisfaction scores using a validated endoscopy GHAA-9 for a new prototype colonoscope as compared to a standard colonoscope.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Colonoscopy is a common endoscopic procedure, widely used for the investigation of lower gastrointestinal tract diseases manifesting as altered bowel habit, per rectal bleeding and abdominal pain. It is used to diagnose colonic polyps, colorectal cancer and inflammatory bowel disease to name a few examples.

Colorectal cancer screening has been shown to decrease colorectal cancer. Despite this the uptake by the general population is suboptimal.

A new prototype colonoscope from Olympus with an additional distal bending section was designed. The investigators hypothesize that its performance characteristics will be similar to a standard colonoscope with patient tolerability.

This randomised control trial aims to invite patients attending their first outpatient colonoscopy and who are able to provide informed consent.(so they have had no prior experience) to assess the completion rate, patient and endoscopist satisfaction.

Patients with prior colorectal surgery or previous colonoscopy were excluded.

Study Type

Interventional

Enrollment (Actual)

1121

Phase

  • Phase 3

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
    • Hong Kong
      • Hong Kong, Hong Kong, China
        • Endoscopy Center, Prince of Wales Hospital

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

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • First outpatient colonoscopy
  • Able to provide informed consent

Exclusion Criteria:

  • Unable to provide consent
  • Prior colon surgery (except appendectomy)

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

  • Primary Purpose: Health Services Research
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Standard Colonoscopy
Colonoscopy with standard instrument
Procedure: Standard Colonoscopy
Standard colonoscopy will be used during colonoscopy
Experimental: Ultra-thin colonoscopy
New prototype scope
Procedure: Ultra-thin colonoscopy
Ultra-thin colonoscope will be used during colonoscopy

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Successful Caecal intubation
Time Frame: 12 weeks
Success of Caecal intubation for the ultra-thin colonoscope vs standard colonoscope
12 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Caecal intubation time
Time Frame: 12 weeks
Caecal intubation time Ultra-thin colonsocope vs standard colonoscope
12 weeks
Patient Satisfaction and Pain score
Time Frame: 12 weeks
Patient tolerability Ultra-thin vs standard colonoscope
12 weeks
Endoscopist satisfaction
Time Frame: 12 weeks
Ease of use prototype scope vs standard colonoscope
12 weeks

Collaborators and Investigators

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

Sponsor

Chinese University of Hong Kong

Investigators

  • Principal Investigator: James Y Lau, Chinese University of Hong Kong

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

October 1, 2009

Primary Completion (Actual)

December 1, 2010

Study Completion (Actual)

January 1, 2011

Study Registration Dates

First Submitted

June 9, 2010

First Submitted That Met QC Criteria

June 10, 2010

First Posted (Estimate)

June 11, 2010

Study Record Updates

Last Update Posted (Estimate)

July 31, 2013

Last Update Submitted That Met QC Criteria

July 29, 2013

Last Verified

July 1, 2013

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • UTC Study

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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