Immune Response in Peripheral Blood of Patients With Colon Cancer
RATIONALE: Studying samples of blood from patients with cancer in the laboratory may help doctors learn more about changes that may occur in the immune system that may help kill cancer cells.
PURPOSE: This laboratory study is looking at anticancer immune responses in the peripheral blood of patients with colon cancer.
Other: immunoenzyme technique
Other: laboratory biomarker analysis
|Study Design:||Observational Model: Case-Only
Time Perspective: Prospective
|Official Title:||Immune Studies of Peripheral Blood From Patients With Malignant Disease Gastrointestinal Tract|
- Quantitation of T cells specific for tumor peptides (carcinoembryonic antigen and MUC1) [ Time Frame: 3 months ] [ Designated as safety issue: No ]
|Study Start Date:||July 2004|
|Study Completion Date:||December 2008|
|Primary Completion Date:||December 2008 (Final data collection date for primary outcome measure)|
- Quantify T cells specific for tumor peptides (carcinoembryonic antigen and MUC1) from the peripheral blood of patients with colon cancer.
OUTLINE: This is an open-label study.
Patients undergo blood collection at time of follow-up, surgery, thoracentesis, paracentesis, or leukapheresis (≤ 5 times per year). Blood is analyzed for tumor peptides (carcinoembryonic antigen and MUC1), circulating cytokines, and lymphocyte response by ELISA, ELISPOT, or intracellular flow.
PROJECTED ACCRUAL: A total of 140 patients will be accrued for this study.
|United States, Arizona|
|Arizona Cancer Center at University of Arizona Health Sciences Center|
|Tucson, Arizona, United States, 85724-5024|
|Study Chair:||Michael Demeure, MD||University of Arizona|