ASCT and MT did not significantly affect the outcome of the patients achieving a complete response prior to ASCT. (A) The median PFS ± standard deviation of the four arms (ASCT/MT, ASCT/non-MT, non-ASCT/MT, non-ASCT/non-MT) was 38±11.688, 39±6.736, 58±15.88 and 26±2.947, respectively. (B) The 3-year OS rate of the four arms (ASCT/MT, ASCT/non-MT, non-ASCT/MT, non-ASCT/non-MT) was 100, 80, 80 and 53.6%, respectively. PFS, progression-free survival; OS, overall survival; ASCT, autologous hematopoietic stem cell transplantation; MT, maintenance therapy.