Nilotinib With Radiation for High Risk Chordoma

The study drug, Nilotinib, is believed to slow down tumor growth by regulating a gene involved in cellular growth of chordoma cells. During this research study, subjects will also receive radiation therapy which is considered a standard treatment for advanced chordomas. It is hoped by adding nilotinib, the benefits of radiation therapy can be enhanced without adding significant toxicities. The purpose of this research study is to determine the safety of nilotinib when used in combination with radiation therapy, and the highest dose of nilotinib that can be given safely with radiation therapy.