Study of Biomarkers in Tissue Samples From Patients With Metastatic Colon Cancer

March 23, 2011 updated by: Georgetown University

Assessment of Variation of PKA and Other Molecular Markers in Patients Undergoing Resection of Colon Cancer Metastases

RATIONALE: Studying samples of tumor tissue from patients with cancer in the laboratory may help doctors identify and learn more about biomarkers related to cancer.

PURPOSE: This research study is looking at biomarkers in tissue samples from patients with metastatic colon cancer.

Study Overview

Status

Withdrawn

Conditions

Intervention / Treatment

Detailed Description

OBJECTIVES:

  • Determine the effect of surgical resection, in terms of physiological stress, on levels of tumor markers such as protein kinase A (PKA) expression in patients with metastatic colon cancer.
  • Estimate variation among patients of baseline tumor markers in tumor tissue and sera.
  • Correlate markers in tumor tissues with that in sera in these patients.
  • Establish a tissue bank of these specimens for future studies.

OUTLINE: Biopsy and surgical specimens are obtained before and during standard surgery (patients may have had tumor tissue obtained before study entry and stored). Serum samples and tumor tissue are analyzed by immunohistochemistry and western blot. Tumor markers (such as PKA expression) are determined and marker levels are measured in serum samples and tissues.

PROJECTED ACCRUAL: Approximately 30 patients will be accrued for this study.

Study Type

Observational

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
    • District of Columbia
      • Washington, District of Columbia, United States, 20007
        • Lombardi Comprehensive Cancer Center at Georgetown 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

Sampling Method

Non-Probability Sample

Study Population

patients with colorectal cancer

Description

DISEASE CHARACTERISTICS:

  • Diagnosis of colon cancer

    • Metastatic disease for which surgical resection is indicated
    • Metastatic disease accessible for tissue biopsy OR previously biopsied tissue is available

PATIENT CHARACTERISTICS:

  • Platelet count ≥ 80,000/mm^3
  • INR ≤ 1.3
  • PTT ≤ upper limit of normal
  • No history of bleeding disorders or abnormal clotting factors
  • No extrahepatic biliary obstruction

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

  • Observational Models: Case-Only
  • Time Perspectives: Prospective

Collaborators and Investigators

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

Sponsor

Georgetown University

Collaborators

National Cancer Institute (NCI)

Investigators

  • Study Chair: John L. Marshall, MD, Lombardi Comprehensive Cancer Center

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

January 1, 2000

Study Registration Dates

First Submitted

November 12, 2009

First Submitted That Met QC Criteria

November 12, 2009

First Posted (Estimate)

November 13, 2009

Study Record Updates

Last Update Posted (Estimate)

March 24, 2011

Last Update Submitted That Met QC Criteria

March 23, 2011

Last Verified

March 1, 2011

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CDR0000078662
  • P30CA051008 (U.S. NIH Grant/Contract)
  • GUMC-00074
  • NCI-G01-1992

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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