This is a randomized, open-label study of Serplulimab plus chemotherapy (Carboplatin-Etoposide) in comparison with Atezolizumab plus chemotherapy in previously untreated US patients with ES-SCLC.
Subjects in this study will be randomized to arm A or B at 1:1 ratio as follows:
- Arm A (Serplulimab): Serplulimab + chemotherapy (carboplatin-etoposide)
- Arm B (control): Atezolizumab + chemotherapy (carboplatin-etoposide)
A Randomized, Open-label Study of Serplulimab Plus Chemotherapy (Carboplatin-Etoposide) in Comparison With Atezolizumab Plus Chemotherapy in Previously Untreated US Patients With Extensive Stage Small Cell Lung Cancer (ES-SCLC) (ASTRIDE)