Study: NCT06164327

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: BEBT-908 for Injection
Description: BEBT-908 for Injection,dosage of administration:15mg/m\^2 or 22.5mg/m\^2，frequency and duration of administration:on the 1st,3rd,5th,8th,10th and 12th days of each cycle,and 21 days as a cycle.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: BEBT-908 for Injection
Description: BEBT-908 for Injection,dosage of administration:15mg/m\^2 or 22.5mg/m\^2，frequency and duration of administration:on the 1st,3rd,5th,8th,10th and 12th days of each cycle,and 21 days as a cycle.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: BEBT-908 for Injection
Description: BEBT-908 for Injection,dosage of administration:15mg/m\^2 or 22.5mg/m\^2，frequency and duration of administration:on the 1st,3rd,5th,8th,10th and 12th days of each cycle,and 21 days as a cycle.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: BEBT-908 for Injection
Description: BEBT-908 for Injection,dosage of administration:15mg/m\^2 or 22.5mg/m\^2，frequency and duration of administration:on the 1st,3rd,5th,8th,10th and 12th days of each cycle,and 21 days as a cycle.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: BEBT-908 for Injection
Description: BEBT-908 for Injection,dosage of administration:15mg/m\^2 or 22.5mg/m\^2，frequency and duration of administration:on the 1st,3rd,5th,8th,10th and 12th days of each cycle,and 21 days as a cycle.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Rituximab Injection
Description: Rituximab Injection,dosage of administration:375 mg/m\^2,frequency and duration of administration:on the 1st day of each cycle, and 21 days as a cycle.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Rituximab Injection
Description: Rituximab Injection,dosage of administration:375 mg/m\^2,frequency and duration of administration:on the 1st day of each cycle, and 21 days as a cycle.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Rituximab Injection
Description: Rituximab Injection,dosage of administration:375 mg/m\^2,frequency and duration of administration:on the 1st day of each cycle, and 21 days as a cycle.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Rituximab Injection
Description: Rituximab Injection,dosage of administration:375 mg/m\^2,frequency and duration of administration:on the 1st day of each cycle, and 21 days as a cycle.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Gemcitabine Hydrochloride for Injection
Description: Gemcitabine Hydrochloride for Injection，dosage of administration:1g/m\^2,frequency and duration of administration:on the 2nd day of each cycle, and 21 days as a cycle.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Gemcitabine Hydrochloride for Injection
Description: Gemcitabine Hydrochloride for Injection，dosage of administration:1g/m\^2,frequency and duration of administration:on the 2nd day of each cycle, and 21 days as a cycle.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Oxaliplatin Injection
Description: Oxaliplatin Injection，dosage of administration:100mg/m\^2,frequency and duration of administration:on the 2nd day of each cycle, and 21 days as a cycle.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Oxaliplatin Injection
Description: Oxaliplatin Injection，dosage of administration:100mg/m\^2,frequency and duration of administration:on the 2nd day of each cycle, and 21 days as a cycle.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Etoposide Injection
Description: Etoposide Injection,dosage of administration:100mg/m\^2，frequency and duration of administration:on the 1st,2nd and 3rd days of each cycle,and 21 days as a cycle.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Ifosfamide for Injection
Description: Ifosfamide for Injection,dosage of administration:5000mg/m\^2,24 hours of continuous intravenous drip，frequency and duration of administration:on the 2nd day of each cycle, and 21 days as a cycle.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Carboplatin Injection
Description: Carboplatin Injection，dosage of administration:based on AUC=5, single dose ≤800 mg，frequency and duration of administration:on the 2nd day of each cycle, and 21 days as a cycle.