All stages of colon cancer are usually treated by surgically removing the cancer and possibly some of the surrounding tissue. Other treatment may include chemotherapy and/or radiation therapy, which may be added to help kill any remaining cancer cells.
Targeted therapy is a relatively new approach to treatment that uses drugs to target specific proteins that control cell growth and maturation. Malfunctioning proteins may contribute to a cancer's uncontrolled growth. For example, drugs such as cetuximab and panitumumab attack the epidermal growth factor receptor (EGFR). Targeted therapies such as these often have less severe side effects than standard chemotherapy.