Efficacy. (A) CR, CRi, MLFS, PR, SD, PD, ORR = (CR+CRi+MLFS+PR)/number of evaluable patients; disease control rate (DCR) = (CR+CRi+MLFS+PR+SD)/number of evaluable patients. (B) The best response based upon change in BM blast percentage is depicted for the 65 evaluable patients with available blast data postselinexor administration. Best response category is color-coded as indicated in the legend. The remaining 30 patients lacking post–drug blast data were assessed as SD (2), PD (14), or were NE (14).