Comparison of Transparent Retractable Extension Device and Narrow Band Imaging on Colorectal Adenoma Detection

November 17, 2015 updated by: Akira Horiuchi, Showa Inan General Hospital
The investigators previously reported that colonoscopy with a transparent retractable extension (TRE) device improved the adenoma detection rate without affecting intubation and withdrawal times. On the other hand, colonoscopy using narrow band imaging (NBI) is expected to lead to higher rate s of adenoma detection. The investigators compared the effects of TRE device on colorectal adenoma detection with those of NBI.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

200

Phase

  • Not Applicable

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

  • Japan
    • Nagano
      • Komagane, Nagano, Japan, 399-4191
        • Showa Inan General 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

20 years to 100 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Exclusion Criteria:

  • Age less than 20 years old
  • Pregnant
  • American Society of Anesthesiologists class III and IV
  • Overweight (body weight > 100 kg)
  • Allergic to the drugs used or its components (soybeans or eggs)
  • Poor bowel preparation
  • Previous colorectal surgical resection

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: Diagnostic
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: 2
The investigators evaluate beneficial effect of colonoscopy using narrow band imaging (NBI) for colorectal adenoma detection.
Device: TRE vs. NBI
TRE NBI
Experimental: 1
The investigators evaluate the beneficial effect of colonoscopy with a transparent retractable extension (TRE) device on colorectal adenoma detection rate.
Device: TRE vs. NBI
TRE NBI

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Colorectal adenoma detection rate
Time Frame: after colonoscopy
after colonoscopy

Secondary Outcome Measures

Outcome Measure
Time Frame
Procedure time, complication
Time Frame: after colonoscopy
after colonoscopy

Collaborators and Investigators

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

Sponsor

Showa Inan General Hospital

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

January 1, 2007

Primary Completion (Actual)

December 1, 2010

Study Completion (Actual)

December 1, 2010

Study Registration Dates

First Submitted

October 1, 2008

First Submitted That Met QC Criteria

October 1, 2008

First Posted (Estimate)

October 2, 2008

Study Record Updates

Last Update Posted (Estimate)

November 18, 2015

Last Update Submitted That Met QC Criteria

November 17, 2015

Last Verified

November 1, 2015

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • TRE2

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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