Infliximab, Regulatory T Cells, IL2 and Crohn's Disease

May 6, 2019 updated by: Judy Collins, Oregon Health and Science University

Analysis of Relationship Between Infliximab Treatment Response, Regulatory T Cells, and Interleukin-2 in Crohn's Disease

Crohn's disease is an inflammatory (swelling and soreness) disorder of the digestive tract. Affected patients suffer from abdominal pains, diarrhea (sometimes bloody), weight loss. It is a lifelong disease with frequent flares during the course of the disease. Crohn's disease is mostly treated with medications, sometimes surgery is needed. Infliximab is a medication for treating severe Crohn's disease. This medicine is effective by blocking special substance (tumor necrosis factor) released from certain white blood cells in the body. Infliximab is given via a vessel at week 0, 2, 6 initially, then every 2 monthly for maintenance. However, some of patients with Crohn's disease do not respond infliximab. Currently there is no test to reveal which patients will respond to treatment. This study aims to analyze and compare particular subgroup of white cells and its products during and after infliximab treatment which may determine the responsiveness to infliximab treatment.

Study Overview

Status

Withdrawn

Conditions

Intervention / Treatment

Detailed Description

All patients will have chest x-ray and pregnancy test (if female) prior to infliximab treatment.

There will be total 5 study visits. At each visit, body weight will be measured, abdominal exam will be performed , 2 tablespoonful of blood will be drawn, stool will be collected, a questionnaire will be completed.

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

  • United States
    • Oregon
      • Portland, Oregon, United States, 97239
        • Oregon Health & Science University

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 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Newly diagnosed or exacerbating CD (Moderate to severe CD).
  • The diagnosis of moderate to severe CD will be confirmed by previous endoscopy and biopsy.
  • Have the capacity to understand and sign an informed consent form.

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: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Changes of IL-2 and Treg cell levels
Time Frame: 1 year
To determine if the change of IL-2 and Treg cell levels can be used clinically as a predictive marker for differentiating Infliximab responders from nonresponders
1 year

Collaborators and Investigators

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

Sponsor

Oregon Health and Science University

Collaborators

Centocor, Inc.

Investigators

  • Principal Investigator: Zili Zhange, MD, PhD, Oregon Health and Science University

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

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

December 1, 2010

Primary Completion (Anticipated)

July 1, 2012

Study Completion (Anticipated)

July 1, 2012

Study Registration Dates

First Submitted

December 23, 2010

First Submitted That Met QC Criteria

December 23, 2010

First Posted (Estimate)

December 24, 2010

Study Record Updates

Last Update Posted (Actual)

May 8, 2019

Last Update Submitted That Met QC Criteria

May 6, 2019

Last Verified

May 1, 2019

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 6572

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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