This trial screens patients with colon or rectal cancer that has spread to other places in the body (metastatic) or cannot be removed by surgery (unresectable) for genetic mutations for recommendation to a molecularly assigned therapy. Identifying gene mutations may help patients enroll onto target companion trials that target these mutations.
COLOMATE: Colorectal Cancer Liquid Biopsy Screening Protocol for Molecularly Assigned Therapy
PRIMARY OBJECTIVES: I. To perform blood-based genomic profiling on patients with treatment refractory metastatic colorectal cancer (CRC) to facilitate accrual to molecularly assigned therapies. II. To facilitate clinically annotated genomic analyses. OUTLINE: Patients submit blood samples for genetic testing.