• Histologically confirmed nTFHL classified by WHO-HAEM5, including nodal TFH cell lymphoma, angioimmunoblastic-type, nodal TFH cell lymphoma, follicular-type, Nodal TFH cell lymphoma, NOS

• Patients planning to receive autologous hematopoietic stem cell transplantation;

• No previous systemic treatment before enrollment.;

• There is at least one measurable lesion: the longest diameter (LDi) of the lymph node lesion is greater than 1.5 cm, or the LDi of one extra lymph node lesion is greater than 1 cm (according to the 2014 Lugano classification);

• Age range from 18 to 65 years old, regardless of gender;

• Eastern Cooperative Oncology Group (ECOG) Performance Status (PS)≤2;

• Expected survival time≥12 weeks;

• Adequate bone marrow and organ functions; For female participants of childbearing period, a negative urine or serum pregnancy test should be performed with 1 week prior to receiving first dose of investigational drug (day 1 of cycle 1). If a urine pregnancy test result cannot be confirmed as negative, a blood pregnancy test is required.WOCBP subjects and male subjects whose partners are WOCBP should agree to use effective contraception from the time of signing the ICF until 6 months after the last dose of study drug.

• Adequate organ and bone marrow function without severe hematopoietic abnormalities and abnormal heart, lung, liver, kidney, thyroid function and immunodeficiencies (no blood transfusion, granulocyte colony-stimulating factor or other related medical support within 14 days prior to administration of study drug):

∙ Routine blood tests (not transfused, not on granulocyte colony-stimulating factor (G-CSF), not corrected with medication within 14 days prior to screening): hemoglobin (Hb) ≥ 90 g/L; neutrophils (ANC) ≥ 1.5 x 10 9/L; platelets (PLT) ≥ 100 x 109/L;

‣ Biochemical tests: TBIL \<1.5 × upper limit of normal range (ULN); glutamate alanine aminotransferase (ALT) and glutamate aspartate aminotransferase (AST) ≤2.5 × ULN; serum creatinine (Cr) ≤1.25 × ULN or endogenous creatinine clearance ≥60 mL/min (Cockcroft-Gault formula);

‣ Coagulation (unless the subject is receiving anticoagulant therapy and coagulation parameters (PT/INR and APTT) are within the expected range for treatment with anticoagulants at screening): international normalized ratio (INR) ≤ 1.5 x ULN; activated partial thromboplastin time (APTT) ≤ 1.5 x ULN.

⁃ Volunteer to participate in clinical research and sign an informed consent form, willing to follow and capable of completing all trial procedures.