Urinary Prostaglandin E Metabolite (PGE-M), A Metabolite of Prostaglandin E2 (PGE2): A Novel Biomarker of Crohn's Disease Activity

April 30, 2017 updated by: David Schwartz, Vanderbilt University Medical Center

Urinary PGE-M, A Metabolite of PGE2: A Novel Biomarker of Crohn's Disease Activity

The purpose of this study is to determine whether urinary PGE-M levels correlate with Crohn's disease activity and to compare how well urinary PGE-M correlates with other non-invasive biomarkers of disease activity such as C-reactive protein (CRP) and fecal calprotectin.

Study Overview

Status

Completed

Conditions

Detailed Description

The available clinical measures of Crohn's disease activity can be overly influenced by functional symptoms. Placebo response rates in clinical trials are high. Several non-invasive biomarkers are currently available for assessing inflammatory bowel disease (IBD) disease activity including erythrocyte sedimentation rate, C-reactive protein and fecal calprotectin. Although these markers hold some promise, their performance is less than ideal. What is needed is a simple, non-invasive, biologic measure of Crohn's disease.

Cyclooxygenase-2 (COX-2) is involved in prostaglandin E2 (PGE2) synthesis and is expressed in epithelial inflammatory conditions and some cancers. We have developed an assay to quantify the major urinary metabolite of PGE2, PGE-M. PGE-M has been previously shown to be elevated in the urine of patients with advanced colorectal neoplasia relative to controls.

Study Type

Interventional

Enrollment (Actual)

159

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

    • Tennessee
      • Nashville, Tennessee, United States, 37232-2285
        • GI Clinical Research; Vanderbilt University Medical Center

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:

  • Outpatient male or female 18 years or older
  • Confirmed diagnosis of Crohn's disease
  • Informed consent obtained
  • Able to give blood, urine and stool samples
  • Willing to undergo a diagnostic colonoscopy as part of routine Crohn's disease care

Exclusion Criteria:

  • Unable to give consent
  • Ulcerative colitis
  • Does not meet inclusion criteria
  • Pregnant

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: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 1
Fecal calprotectin and urinary PGE-M levels will be tested on all participants.
Fecal calprotectin levels obtained and compared to urinary PGE-M and serum C-reactive protein (CRP) levels.
Urinary PGE-M level obtained and compared to fecal calprotectin and serum CRP levels.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Urine for PGE-M levels
Time Frame: Day of colonoscopy procedure
Day of colonoscopy procedure

Secondary Outcome Measures

Outcome Measure
Time Frame
Blood for C-reactive protein (CRP) levels
Time Frame: Day 1
Day 1
Stool for fecal calprotectin
Time Frame: Prior to colonoscopy procedure (before beginning bowel prep)
Prior to colonoscopy procedure (before beginning bowel prep)
Routine colonoscopy for assessment of disease activity
Time Frame: 1-3 weeks from consent
1-3 weeks from consent
Harvey-Bradshaw index disease activity score
Time Frame: Day of colonoscopy procedure
Day of colonoscopy procedure

Collaborators and Investigators

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

Collaborators

Investigators

  • Principal Investigator: David A. Schwartz, MD, Vanderbilt University

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

August 1, 2007

Primary Completion (Actual)

December 1, 2015

Study Completion (Actual)

December 1, 2015

Study Registration Dates

First Submitted

July 2, 2007

First Submitted That Met QC Criteria

July 3, 2007

First Posted (Estimate)

July 4, 2007

Study Record Updates

Last Update Posted (Actual)

May 2, 2017

Last Update Submitted That Met QC Criteria

April 30, 2017

Last Verified

April 1, 2017

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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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