How Avastin (Bevacizumab) Targeted Therapy Treats Advanced Cancer Avastin (Bevacizumab) is a targeted cancer therapy for various types of advanced and metastatic cancers, including lung and colon cancer. In this video, oncologist Stephen Lemon MD discusses how Avastin works, as well as what types of side effects it may cause. Considered an angiogenesis inhibitor, Avastin stops cancer from growing by cutting off the cancer's blood supply. Avastin was the first angiogenesis inhibitor approved for the treatment of cancer in the United States. (Angiogenesis is the process of how new capillary blood vessels grow in the body) Avastin is currently approved for treating 6 different types of metastatic and advanced cancers, including rectal and colon cancer, lung cancer, kidney cancer, cervical cancer, ovary cancer and brain cancer. Avastin is given intravenously in combination with other chemotherapy drugs. Avastin is developed by Genentech. Dr. Lemon is a medical oncologist at Oncology Associates, P.C. in Omaha and is not affiliated with Genentech. Visit to learn more about Oncology Associates and their approach to personalized cancer treatment.