Patients w/ metastatic colorectal cancer who have been previously treated w/ fluoropyrimidine-, oxaliplatin- & irinotecan-based chemotherapy, an anti-VEGF therapy, & if RAS wild type, an anti-EGFR therapy; w/ locally advanced, unresectable or metastatic GI stromal tumor who have been previously treated w/ imatinib mesylate & sunitinib malate; w/ hepatocellular carcinoma who have been previously treated w/ sorafenib.