Study Comparing BEBT-908 Combined With R to SOC for the Treatment of Relapsed/Refractory Diffuse Large B-Cell Lymphoma

Ifupinostat Hydrochloride for Injection,dosage of administration:18.5mg/m\^2,frequency and duration of administration:Medication is administered on days 1, 3, 5, 8, 10, and 12 of each cycle,with a 21-day or 42-day cycle duration.

Rituximab Injection,dosage of administration:375 mg/m\^2,frequency and duration of administration:Medication is administered on day 1 of each cycle or every third cycle, with a 21-day cycle duration.

Gemcitabine Hydrochloride for Injection,dosage of administration:1g/m\^2,frequency and duration of administration:Medication is administered on day 2 of each cycle, with a 21-day cycle duration.

Oxaliplatin Injection,dosage of administration:100mg/m\^2,frequency and duration of administration:Medication is administered on day 2 of each cycle, with a 21-day cycle duration.

Etoposide Injection,dosage of administration:100mg/m\^2,frequency and duration of administration:Medication is administered on days 1,2,and 3 of each cycle, with a 21-day cycle duration.

Ifosfamide for Injection,dosage of administration:5000mg/m\^2,frequency and duration of administration:Medication is administered on day 2 of each cycle, with a 21-day cycle duration.

Carboplatin Injection,,dosage of administration:single dose ≤800 mg (calculated based on AUC=5),frequency and duration of administration:Medication is administered on day 2 of each cycle, with a 21-day cycle duration.