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Sorafenib in renal cell carcinoma Flaherty KTClin Cancer Res 2007[Jan]; 13 (2 Pt 2): 747s-752sSorafenib is an orally available inhibitor of vascular endothelial growth factor receptors, platelet-derived growth factor receptor-beta, and RAF kinases. A dose of 400 mg twice daily administered continuously was selected for phase 2 testing, although 600 mg twice daily formally met criteria for a maximum tolerated dose. It is well tolerated compared with cytokine therapy. Antitumor activity was shown clearly in the context of a randomized discontinuation phase 2 trial. In this setting, even disease stabilization was established as a treatment-related phenomenon. A phase 3 trial with sorafenib confirmed a benefit of therapy across the vast majority of patients treated with sorafenib as opposed to placebo. Limited investigations into the mechanism of action of sorafenib in renal cell carcinoma support vascular endothelial growth factor receptor antagonism as the primary mediator of effect. The toxicity profile of sorafenib allows for its use in combination regimens. The focus of efforts to improve on the efficacy of sorafenib is on use with IFN, bevacizumab, or temsirolimus. Preliminary evidence with this approach is promising and will be the subject of the next generation of randomized trials in renal cell carcinoma.|Antineoplastic Agents/therapeutic use[MESH]|Benzenesulfonates/*therapeutic use[MESH]|Carcinoma, Renal Cell/*drug therapy[MESH]|Clinical Trials as Topic[MESH]|Disease Progression[MESH]|Disease-Free Survival[MESH]|Humans[MESH]|Kidney Neoplasms/*drug therapy[MESH]|Models, Biological[MESH]|Niacinamide/analogs & derivatives[MESH]|Phenylurea Compounds[MESH]|Pyridines/*therapeutic use[MESH]|Receptors, Vascular Endothelial Growth Factor/antagonists & inhibitors[MESH]|Research Design[MESH]|Sorafenib[MESH]|Time Factors[MESH] |
