Xiang Zhou, MD, University Hospital of Würzburg, Würzburg, Germany, discusses results from a study investigating carfilzomib, a second-generation proteasome inhibitor, in patients with relapsed/refractory multiple myeloma. Dosage of carfilzomib depends on what regimen it is part of and the study attempted to elucidate if high-dose carfilzomib can capture response in patients resistant to low-dose carfilzomib. High-dose carfilzomib, defined as 36+ mg/m2, achieved a more robust progression-free survival in patients than low-dose carfilzomib. This interview took place at the 63rd ASH Annual Meeting and Exposition congress in Atlanta, GA.