Colorectal Cancer
Conditions
Keywords
adenocarcinoma of the colon, stage I colon cancer, stage II colon cancer, stage III colon cancer, stage IV colon cancer
Brief summary
RATIONALE: Genetic studies may help in understanding the genetic processes involved in the development of some types of cancer. PURPOSE: Clinical trial to study the cancer-related genes in patients who have colon cancer or adenomatous polyps.
Detailed description
OBJECTIVES: * Identify human colon neoplasia susceptibility genes in patients with colon cancer or adenomatous polyps. * Correlate the inheritance of novel susceptibility alleles for adenomatous polyposis of the colon with colon neoplasia in these patients. * Correlate colon neoplasia susceptibility with the presence of COX-2, sPLA2, and DNMT genes in these patients. * Identify a novel gene that governs increased susceptibility to colon adenoma and cancer in the genome of these patients.
Interventions
Sponsors
Study design
Eligibility
Inclusion criteria
DISEASE CHARACTERISTICS: * Diagnosis of colon cancer or polyps at age 70 or under * Has a living full sibling with diagnosis of colon cancer or polyps at age 70 or under * No history of familial adenomatous polyposis syndrome * No hereditary nonpolyposis colon cancer, according to Amsterdam criteria * No known I1370K adenomatous polyposis of the colon susceptibility variant * Enrolled on 1 of the following clinical trials: * CLB-9581 * CLB-89803 * CLB-80001 NOTE: Patients do not need to be receiving protocol therapy. Patients who are outside the treatment protocol's follow-up range are eligible. Patients who discontinued therapy for any reason, including toxic effects, are eligible. PATIENT CHARACTERISTICS: Age * 70 and under at diagnosis Other * No significant psychiatric illness that would preclude giving informed consent * No inflammatory bowel disease (in patient or sibling)
Countries
United States