Daily Oral Regorafenib for Chemotherapy-Refractory, Metastatic and Locally Advanced Angiosarcoma

The purpose of this study is to see whether a drug called regorafenib might be effective in treating angiosarcoma. This study is for patients who have angiosarcoma that has gotten worse after they received chemotherapy. Regorafenib is a type of drug called a kinase inhibitor. Regorafenib interferes with how some kinase proteins work. Some of these kinases in cancer cells might normally help the cancer cells grow or form new blood vessels that could feed a growing tumor. By blocking these proteins, regorafenib may help stop the growth of certain cancers.