Utilization of NBi in Assessing Luminal INflammaion in IBD (UNBLIND)

February 18, 2016 updated by: The Leeds Teaching Hospitals NHS Trust

Utility of Narrow Band Endoscopy in Predicting Short and Long Term Risk of Relapse in Patients With Quiescent Ulcerative Colitis

Ulcerative colitis (UC) is a chronic inflammatory condition of unknown aetiology, characterized by a diffuse confluent mucosal inflammation of the colon starting from the rectum with a relapsing and remitting course. Conventional endoscopy was thought to be a reliable parameter of disease activity, but microscopic inflammation can persist despite normal mucosal findings. Histologically detectable inflammation is associated with a greater risk of subsequent relapse. A flare in UC activity is difficult to predict, but a simple, easily measured biological marker of relapse would be important in guiding the most appropriate therapy.

Recent technological advances in fiber optics, light sources, detectors, and molecular biology have stimulated development of numerous optical methods that promise to significantly improve our ability to evaluate human epithelium in vivo. These methods, collectively termed "optical biopsy," are nondestructive in situ assays of mucosal histopathology using light that can provide instantaneous tissue assessment. Narrow band imaging (NBI) is a novel technique that enhances the diagnostic capability of endoscopes in characterising tissues by using filters in a redgreenblue (RGB) sequential illumination system. This results in improved mucosal contrast and detail.

UC always involves the distal colon and activity is usually greatest in rectosigmoid area. This makes evaluation of the rectum and sigmoid an attractive marker in patients with UC. Unlike serum and faecal markers, endoscopic assessment of the mucosa is unlikely to be affected by systemic disease and would be acceptable test for patients and physicians.

We plan to evaluate THE rectosigmoid mucosa in patients with UC by flexible endoscope using both white light and NBI endoscopy. These patients will be followed by for one year or until they relapse, whichever comes first. The aim of our study is to develop endoscopic biomarkers to predict relapse in acute and quiescent UC.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Study Type

Interventional

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

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 to 85 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

N/A

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Adult patients referred for lower gastrointestinal endoscopy procedure will be recruited.
  • Any age (1885 years), gender or ethnic background
  • Able and willing to give an informed consent

Exclusion Criteria:

  • Patients known to be intolerant to endoscopy.
  • Patients with severe lifethreatening comorbidity as judged by the investigator.
  • Patients on therapy with anticoagulation that may preclude taking any biopsies
  • Pregnant women or breast feeding mothers
  • Patient with toxic megacolon
  • patients on medications known to cause bowel inflammation.

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: NA
  • Interventional Model: SINGLE_GROUP
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: NBI
Procedure: NBI

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Narrow band imaging (NBI)
Time Frame: up to 2 years
up to 2 years

Collaborators and Investigators

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

Sponsor

The Leeds Teaching Hospitals NHS Trust

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

April 1, 2013

Primary Completion (ACTUAL)

April 1, 2015

Study Registration Dates

First Submitted

January 20, 2014

First Submitted That Met QC Criteria

January 28, 2014

First Posted (ESTIMATE)

January 30, 2014

Study Record Updates

Last Update Posted (ESTIMATE)

February 19, 2016

Last Update Submitted That Met QC Criteria

February 18, 2016

Last Verified

February 1, 2016

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • UR13/10708

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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