Adebrelimab Plus Apatinib for Maintenance Therapy of Extensive Stage Small Cell Lung Cancer

Adebrelimab injection (1200mg) will be administered by intravenous infusion during the induction phase and maintenance phase on day 1 in a 3-week treatment cycle.

Apatinib mesylate tablets (250 mg) will be administered orally in a 3-week treatment cycle, once a day.

Carboplatin (AUC 4-5mg/mL/min) intravenous infusion will be administered during the induction phase on day 1 in a 3-week treatment cycle.

Cisplatin (75mg/m2) intravenous infusion will be administered during the induction phase on day 1 in a 3-week treatment cycle.

Etoposide(100mg/m2) intravenous infusion will be administered during the induction phase from day 1 to 3 in a 3-week treatment cycle.