Esophageal Cancer Clinical Trial
Gastrointestinal Biomarkers in Tissue and Biological Fluid Samples From Colorectal Cancer Patients
Summary
RATIONALE: Studying samples of tissue, blood, urine, stool, and other biological fluids from patients with cancer and from healthy participants may help doctors identify and learn more about biomarkers related to cancer.
PURPOSE: This research study is looking at gastrointestinal biomarkers in tissue and biological fluid samples from patients and healthy participants undergoing colonoscopy, endoscopy, or surgery.
Full Description
OBJECTIVES:
Identify new potential biomarkers of increased gastrointestinal cancer risk using tissue and biofluid samples from patients and volunteers undergoing colonoscopy, endoscopy, or surgery.
Develop new screening strategies based on substances found in tissue and biofluid samples.
OUTLINE: This is a multicenter study.
Patients and healthy volunteers undergo colonoscopy, endoscopy, or surgery. Patients and healthy volunteers also undergo tissue (e.g., tumor or normal mucosa) and biofluid (e.g., blood, urine, cyst fluids or tumor cells, bile and pancreatic juices, and/or stool) sample collection. Samples are analyzed for tumor markers by proteomic methods and protein analysis. If candidate biomarkers are identified, samples are stored for future studies involving these biomarkers. Information, including demographics, personal and family history of cancer, and prior and current colonoscopy, endoscopy, or surgery results, is collected from the medical record and stored in the project database.
Patients are followed once a year for up to 5 years to determine if biomarkers have a prognostic significance.
Eligibility Criteria
DISEASE CHARACTERISTICS:
Meets 1 of the following criteria:
Diagnosis of gastrointestinal (GI) cancer, polyps, or inflammatory bowel disease
History of previously treated GI cancer, polyps, or inflammatory bowel disease
Undergoing colonoscopy or endoscopy for diagnostic or screening purposes at the Vanderbilt University Medical Center or at the Veterans Affairs Medical Center
PATIENT CHARACTERISTICS:
Hemoglobin ≥ 8.0 g/dL
Not pregnant
Fertile participants must use effective contraception
Capable of giving informed consent
Not mentally or medically impaired
No bleeding disorder
PRIOR CONCURRENT THERAPY:
See Disease Characteristics
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