Nilotinib is a selective tyrosine kinase inhibitor that targets BCR-ABL kinase, c-KIT and platelet derived growth factor receptor (PDGFR); it does not have activity against the SRC family. Nilotinib inhibits BCR-ABL mediated proliferation of leukemic cell lines by binding to the ATP-binding site of BCR-ABL and inhibiting tyrosine kinase activity. Nilotinib is an oral medication used for treating chronic myeloid leukemia and acute lymphoblastic leukemia. Nilotinib is classified as a kinase inhibitor. Kinase inhibitors include dasatinib (Sprycel), erlotinib (Tarceva), gefitinib (Iressa), imatinib (Gleevec), pazopanib (Votrient), sunitinib (Sutent), and vandetanib (Caprelsa). Kinase inhibitors prevent the growth of tumors by reducing the action of proteins that control cell division, growth and survival. These proteins are usually present in larger quantities or are more active in cancer cells. By reducing the activity of these proteins, growth and survival of cancer cells are reduced. The FDA approved nilotinib in October 2007.