Your Article Summary
Colorectal Cancer Drugs Require Careful Patient Selection
National Cancer Institute, 06/24/08
Patients with advanced colorectal cancer who have mutant forms of the gene KRAS in their tumors should not receive chemotherapy plus cetuximab (Erbitux), because they are unlikely to benefit from the treatment and should be spared the side effects and cost. An estimated 30 to 40 percent of colorectal tumors carry KRAS mutations, and commercial tests are available. Screening could proceed based on the breast cancer model, where women undergo testing for genetic characteristics of their tumors prior to treatment with trastuzumab.
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