what is stivarga
What regorafenib is. Regorafenib is also called by its brand name Stivarga. It is a treatment for. 1  Bowel cancer that has spread to other parts of the body â when other treatments are no longer working or are unsuitable. 2  Gastro intestinal stromal cancer (GIST) â a rare type of soft tissue sarcoma of the stomach or intestines.