NPM1 and acute myeloid leukemia: FLT3/NPM1 WT status (P = 0.26), BM blast percent prior to salvage (0.66), intensive (P = 0.72) or targeted salvage chemotherapy (FLT3 or IDH inhibitors) (P = 0.42), greater than 1 salvage regimen (P = 0.89) [P values involving salvage chemotherapy reflect those excluding the 2 patients bridged directly to transplant], age < 60 years (P = 0.30), and de novo AML (P = 0.10) also did not predict response, nor a survival advantage.