Activity of SU11248, a Multitargeted Inhibitor of Vascular Endothelial Growth Factor Receptor and Platelet-Derived Growth Factor Receptor, in Patients With Metastatic Renal Cell Carcinoma

作者: Robert J. Motzer , M. Dror Michaelson , Bruce G. Redman , Gary R. Hudes , George Wilding

DOI: 10.1200/JCO.2005.02.2574

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摘要: Purpose Renal cell carcinoma (RCC) is characterized by loss of von Hippel Lindau tumor suppressor gene activity, resulting in high expression pro-angiogenic growth factors: vascular endothelial factor (VEGF) and platelet-derived (PDGF). SU11248 (sunitinib malate), a small molecule inhibitor with binding affinity for VEGF PDGF receptors, was tested clinical activity patients metastatic RCC. Patients Methods RCC progression on first-line cytokine therapy were enrolled onto multicenter phase II trial. monotherapy administered repeated 6-week cycles daily oral 4 weeks, followed 2 weeks off. Overall response rate the primary end point, time to safety secondary points. Results Twenty-five (40%) 63 treated achieved partial responses; 17 additional (27%) demonstrated stable disease lasting ≥ 3 months. Median 6...

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