Effect of Biological Therapy on Biomarkers in Patients With Untreated Hepatitis C, Metastatic Melanoma, or Crohn Disease

April 21, 2016 updated by: Jeffrey A. Sosman, MD, Vanderbilt-Ingram Cancer Center

Title: Evaluation of Systemic IDO Levels After Various Immunotherapeutics

RATIONALE: Studying samples of blood from patients with cancer, hepatitis C, or Crohn disease in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer and other diseases.

PURPOSE: This laboratory study is looking at the effect of biological therapy on biomarkers in patients with untreated hepatitis C, metastatic melanoma, or Crohn disease.

Study Overview

Detailed Description

OBJECTIVES:

  • To determine how a variety of immune-modulating therapies (i.e., interferon alfa [IFN-α] in patients with untreated acute or chronic hepatitis C, anti-tumor necrosis factor in patients with active inflammatory bowel disease (i.e., Crohn disease), and anticytotoxic T-lymphocyte antigen immunoglobulin in patients with metastatic melanoma) affect the tissue expression of indoleamine 2, 3 dioxygenase (IDO), a major immune-regulatory mechanism.
  • To determine whether administration of pegylated INF-α in patients with untreated acute and chronic hepatitis C causes systemic changes in the IDO pathway, as indicated by lowered serum tryptophan (TRP) and elevated serum kynurenine (KYN).
  • To determine whether administration of ticilimumab (i.e., anti-CTLA4 human monoclonal antibody CP-675,206) in patients with metastatic melanoma inhibits activation of the IDO pathway as indicated by normal serum TRP and normal serum KYN.
  • To determine whether administration of infliximab in patients with Crohn disease inhibits activation of the IDO pathway, as indicated by normal serum TRP and normal serum KYN.

OUTLINE: Serum samples are collected from patients with hepatitis C and metastatic melanoma at baseline and at 3 to 4 weeks after treatment is initiated. Previously collected samples from patients with Crohn disease are also assessed at these time points. Samples are analyzed for tryptophan and kynurenine levels via high-performance liquid chromatography.

PROJECTED ACCRUAL: A total of 15 patients with untreated acute or chronic Hepatitis C, 15 patients with metastatic melanoma, and 20 patients with Crohn disease will be accrued for this study.

Study Type

Observational

Enrollment (Actual)

7

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

  • ADULT
  • OLDER_ADULT
  • CHILD

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

patients with Hepatitis C; Anti-TNF in patients with active inflammatory bowel disease(IBD); anti-CTLA Ig in patients with metastatic melanoma

Description

Inclusion Criteria:

DISEASE CHARACTERISTICS:

  • Diagnosis of 1 of the following:

    • Acute or chronic hepatitis C

      • Receiving pegylated interferon alfa and ribavirin
    • Metastatic melanoma

      • Receiving ticilimumab
    • Crohn disease

      • Received prior infliximab

Exclusion Criteria:

  • Not specified

PATIENT CHARACTERISTICS:

  • Not specified

PRIOR CONCURRENT THERAPY:

  • See Disease Characteristics

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

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Systemic indoleamine 2, 3 dioxygenase levels in tissue at baseline and 3 to 4 weeks after treatment is initiated (timepoints for cancer and hepatitis patients)
Time Frame: at baseline and 3 to 4 weeks after treatment is initiated
at baseline and 3 to 4 weeks after treatment is initiated
Serum TRP levels at baseline and at 3 to 4 weeks after treatment is initiated (timepoints for cancer and hepatitis patients)
Time Frame: at baseline and at 3 to 4 weeks after treatment is initiated
at baseline and at 3 to 4 weeks after treatment is initiated
Serum KYN levels at baseline and at 3 to 4 weeks after treatment is initiated (timepoints for cancer and hepatitis patients)
Time Frame: at baseline and at 3 to 4 weeks after treatment is initiated
at baseline and at 3 to 4 weeks after treatment is initiated

Collaborators and Investigators

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

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

October 1, 2006

Primary Completion (ACTUAL)

August 1, 2008

Study Completion (ACTUAL)

August 1, 2008

Study Registration Dates

First Submitted

May 9, 2009

First Submitted That Met QC Criteria

May 9, 2009

First Posted (ESTIMATE)

May 12, 2009

Study Record Updates

Last Update Posted (ESTIMATE)

April 25, 2016

Last Update Submitted That Met QC Criteria

April 21, 2016

Last Verified

April 1, 2016

More Information

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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