ORLANDO, Fla.--(BUSINESS WIRE)--Pfizer announced today, at the 45th American Society of Clinical Oncology (ASCO) Annual Meeting, the results of several clinical studies that may help identify patients who are more likely to benefit when treated with Sutent® (sunitinib malate) or axitinib (AG-013736), an investigational compound. The data identifies prognostic and predictive factors associated with longer overall survival among subgroups of patients with metastatic renal cell carcinoma (mRCC), or advanced kidney cancer. In addition, Phase 2 study results showing anti-tumor activity of Sutent in patients with metastatic hormone-refractory prostate cancer (mHRPC) will be presented at ASCO.