Sumit K. Subudhi, MD, PhD, of The University of Texas MD Anderson Cancer Center, discusses the initial results from a phase II study of nivolumab plus ipilimumab in the treatment of metastatic castration-resistant prostate cancer (Abstract 142).
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).
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).
Nicholas J. van As, MD, of The Royal Marsden NHS Foundation Trust, discusses an analysis of acute toxicity in the PACE-B study, which compared stereotactic body radiotherapy with conventionally fractionated or moderately hypofractionated external-beam radiotherapy for localized prostate cancer (Abstract 1).