Study of Flat Polyp Detection Using New Narrow Band Imaging (NBI) Compared to White Light Colonoscopy - The FIND FLAT Colonoscopy Study (NBI)

October 31, 2017 updated by: Roy Soetikno, VA Palo Alto Health Care System

Full Inspection With Narrow Band Imaging (NBI) for Detection of Flat Lesions And Tumors During Colonoscopy- The FIND FLAT Colonoscopy Study

We hypothesize that high definition narrow band imaging (NBI) colonoscopy compared to high definition white light colonoscopy will detect an increased number of nonpolypoid (flat and depressed) colorectal neoplasm.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Interval colorectal cancers diagnosed within a three year period following a clearing colonoscopy have been reported at a rate of 1 cancer/1000 person years.The majority of these cancers are likely a consequence of a missed neoplastic lesion during routine colonoscopy. Recent tandem colonoscopy studies have shown no significant difference in adenoma miss or detection rates using narrow band imaging as compared to colonoscopy using white light. However, higher detection of flat neoplastic lesions using NBI was shown in a meta-analysis and should be furthered studied, especially considering that they are thought to be a strong contributor to a false negative colonoscopy.

Study Type

Interventional

Enrollment (Actual)

281

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

  • United States
    • California
      • Palo Alto, California, United States, 94304
        • Veterans Affairs Palo Alto
      • San Francisco, California, United States, 94121
        • Veterans Affairs San Francisco
    • Missouri
      • Kansas City, Missouri, United States, 64128
        • Veterans Affairs Kansas City

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

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Adult patients referred for routine colonoscopy are eligible

Exclusion Criteria:

  • Known Inflammatory bowel disease
  • Referred for endoscopic evaluation and removal of colorectal lesion
  • Personal or family history of polyposis or non-polyposis syndrome
  • Presentation for emergency endoscopy
  • Inability to remove polyp due to coagulopathy or thrombocytopenia
  • Inability to provide informed consent

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
Experimental: High Definition NBI Colonoscopy
Use of high definition narrow band imaging colonoscopy during examination for polyp detection. The same intervention is used on both arms: the Olympus Colonoscope CFHQ190AL, a technically improved colonoscope with close focus high definition narrow band imaging.
Device: Olympus Colonoscope CFHQ190AL
Technically improved colonoscope with close focus high definition narrow band imaging.
Placebo Comparator: High Definition White Light Colonoscopy
Use of high definition white light colonoscopy during examination for polyp detection. The same intervention is used on both arms: the Olympus Colonoscope CFHQ190AL, a technically improved colonoscope with close focus high definition narrow band imaging.
Device: Olympus Colonoscope CFHQ190AL
Technically improved colonoscope with close focus high definition narrow band imaging.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants With Nonpolypoid (Flat and Depressed) Colorectal Neoplasm
Time Frame: One week (time of procedure plus time for pathology of polyp to be analyzed by histology)
Compare the nonpolypoid colorectal neoplasm detection characteristics of the new high definition narrow band imaging colonoscopy to conventional high definition white light mode colonoscopy.
One week (time of procedure plus time for pathology of polyp to be analyzed by histology)

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percentage of Missed Lesions on Index Colonoscopy.
Time Frame: One week (time of procedure plus time for pathology of polyp to be analyzed by histology)
Compare the number of missed lesions on the index examination using the new high definition narrow band imaging colonoscopy to the conventional high definition white light mode colonoscopy, based on the tandem colonoscopy findings.
One week (time of procedure plus time for pathology of polyp to be analyzed by histology)
Percentage of Nonpolypoid (Flat) Missed Lesions
Time Frame: One week (time of procedure plus time for pathology of polyp to be analyzed by histology)
Compare the number of missed non-polypoid lesions on the index examination using the new high definition narrow band imaging colonoscopy to the conventional high definition white light mode colonoscopy.
One week (time of procedure plus time for pathology of polyp to be analyzed by histology)

Collaborators and Investigators

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

Sponsor

VA Palo Alto Health Care System

Collaborators

Kansas City Veteran Affairs Medical Center

Investigators

  • Principal Investigator: Tonya Kaltenbach, MD MS, San Francisco Veterans Affairs Medical Center

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

Helpful Links

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, 2013

Primary Completion (Actual)

May 1, 2016

Study Completion (Actual)

August 1, 2016

Study Registration Dates

First Submitted

March 7, 2011

First Submitted That Met QC Criteria

March 7, 2011

First Posted (Estimate)

March 8, 2011

Study Record Updates

Last Update Posted (Actual)

December 6, 2017

Last Update Submitted That Met QC Criteria

October 31, 2017

Last Verified

October 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • FIND FLAT PA19624

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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