• Age ≥18, ≤65 years.

• Expected survival ≥ 3 months.

• Subjects with aggressive NHL who have relapsed or proven refractory to at least one line of standard therapy or have achieved PR as the best response after a minimum of 4 cycles of therapy (patients with a Deauville score of 4 must have biopsy-proven residual disease). Relapse is defined as a disease response (PR/CR) to the last-line therapy with a duration of response exceeding 6 months. Refractory disease can be confirmed under any of the following conditions: 1) no partial or complete response to the last-line therapy; 2) the duration of complete or partial response to the last-line therapy is no longer than 6 months from the last dose of therapy; 3) Recurrence after hematopoietic stem cell transplantation.

• Subjects must have at least one measurable lesion per lugano2014 criteria: for lymph node lesions, the long diameter should be \> 1.5cm; For non-lymph node lesions, the long diameter should be \> 1.0cm;

• Eastern Cooperative Oncology Group (ECOG) : 0-2

• Peripheral blood: Absolute neutrophil count (ANC) ≥1.5×109/L, Platelet count (PLT) ≥75×109/L, Hemoglobin(HB)≥ 80g/L.(Restriction may be relaxed in patients with bone marrow involvement, Absolute neutrophil count (ANC) ≥1.0×109/L, Platelet count (PLT) ≥50×109/L, Hemoglobin(HB)≥ 75g/L).

• Liver and kidney function: Serum creatinine (Scr) ≤1.5X upper limit of normal (ULN).Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≤2.5X ULN, Total bilirubin (TBIL) ≤1.5X upper limit of normal (ULN).(If the lymphoma involves the liver, TBIL≤3 X ULN.AST and ALT≤5 X ULN). For Pts diagnosed with Gilbert's disease, TBIL was enrolled if it was ≤3 X ULN.-