We are updating the design of this site. Learn more.
Show more
ClinicalTrials.gov Menu

The Use of Narrow Band Imaging in Screening Colonoscopy

This study has been completed.
ClinicalTrials.gov Identifier:
First Posted: May 27, 2009
Last Update Posted: July 29, 2009
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by:
Valduce Hospital
Narrow band imaging (NBI) is an imaging technique that allows a better definition of capillary pattern and improves the contrast between adenomas and the surrounding mucosa. Conflicting data exist on the ability of NBI in to improve detection of colonic neoplasm; the impact of NBI is being tested in several screening scenarios. The investigators evaluated whether the routine use of NBI, compared to white light (WL), during the withdrawal phase of screening colonoscopy improved adenoma detection.

Condition Intervention
Colonoscopy Procedure: Narrow Band Imaging

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single
Primary Purpose: Diagnostic
Official Title: The Impact of Narrow Band Imaging in Screening Colonoscopy: a Randomized Controlled Trial.

Resource links provided by NLM:

Further study details as provided by Valduce Hospital:

Primary Outcome Measures:
  • Adenoma Detection [ Time Frame: duration of colonoscopy procedure ]

Secondary Outcome Measures:
  • Detection of Flat and/or Depressed Adenomas [ Time Frame: duration of colonoscopy procedure ]

Enrollment: 206
Arms Assigned Interventions
No Intervention: 1
standard white light
Experimental: 2
Narrow Band Imaging
Procedure: Narrow Band Imaging
Narrow Band Imaging


Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Ages Eligible for Study:   50 Years to 69 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • 50-69 year-old asymptomatic subjects at average-risk of CRC
  • positive FOBT participating in a national mass-screening program and referred for colonoscopy

Exclusion Criteria:

  • ongoing anticoagulation therapy
  • inadequate bowel cleansing
  • incomplete colonoscopy
  • refusing to participate
  Contacts and Locations
No Contacts or Locations Provided
  More Information

Responsible Party: Vittorio Terruzzi, MD., Valduce Hospital, Department of Gastroenterology
ClinicalTrials.gov Identifier: NCT00908648     History of Changes
Other Study ID Numbers: NBI-01
First Submitted: January 22, 2009
First Posted: May 27, 2009
Results First Submitted: January 22, 2009
Results First Posted: May 27, 2009
Last Update Posted: July 29, 2009
Last Verified: April 2009

Keywords provided by Valduce Hospital:
screening colonoscopy
narrow band imaging