Howard I. Scher, MD, of Memorial Sloan Kettering Cancer Center, discusses circulating tumor cell number as a transitional surrogate endpoint for survival in phase II trials on metastatic castration-resistant prostate cancer (Abstract 143).
Thomas Powles, MD, PhD, of Queen Mary University of London, discusses phase III study findings on ramucirumab plus docetaxel vs placebo plus docetaxel in patients with advanced platinum-refractory urothelial carcinoma (Abstract 353).
Brian I. Rini, MD, of the Cleveland Clinic Taussig Cancer Institute, discusses phase III findings on a comparison of tivozanib and sorafenib in patients with refractory advanced renal cell carcinoma (Abstract 541).
Ignacio Duran, MD, PhD, of the Hospital Universitario Marqués de Valdecilla, discusses an overall survival analysis of the phase III METEOR trial of cabozantinib vs everolimus in advanced renal cell carcinoma (Abstract 550).
