A Phase 1b, Open-Label, Dose-Finding Study to Evaluate the Safety of Tivozanib (AV-951) in Combination With Temsirolimus in Subjects With Metastatic Renal Cell Carcinoma

The purpose of this study is to test the safety and tolerability of tivozanib (AV-951) and Torisel™ given in combination for renal cell cancer. The study will also assess the effects of the combination of tivozanib (AV-951) and Torisel™ on the tumor. Tivozanib (AV-951) is a VEGF-receptor tyrosine kinase inhibitor, and may stop the growth of tumor cells by blocking blood flow to the tumor. Temsirolimus is an mTOR inhibitor which is approved for the treatment of advanced renal cell carcinoma.