What are angiogenesis inhibitors and how do they work?
A chemical that interferes with the signals to form new blood vessels is referred to as an angiogenesis inhibitor. Sometimes called antiangiogenic therapy, this treatment may prevent the growth of cancer by blocking the formation of new blood vessels. In some animal case studies, angiogenesis inhibitors have caused cancer to shrink and resolve completely. Thalidomide has been identified as having mild activity as an angiogenesis inhibitor in myelodysplasic syndrome and sometimes in kidney cancer. A newer version of this medication is lenalidomide (Revlamid), which has fewer side effects than thalidomide. Another medication, bevacizumab (Avastin®), has been approved by the US Food and Drug Administration (FDA) to aid in the treatment of colorectal cancer. It is being studied in other types of cancer, as are other medications.
