Cabozantinib works by blocking the growth of new blood vessels that feed a tumor. In addition to blocking the formation of new blood cells in tumors, cabozantinib also blocks pathways that may be responsible for allowing cancers cells to become resistant to other "anti-angiogenic" drugs. Cabozantinib has been studied or is being study in research studies as a possible treatment for various types of cancer, including prostate cancer, brain cancer, thyroid cancer, lung cancer, and kidney cancer.