atezolizumab plus SoCtitleplacebo plus SoCtitleIMpower-133, 2018 NCT02763579 Extensive stage SCLC (Es-SCLC) - 1st Line (L1) 201/202

Pathology:  Extensive stage SCLC (Es-SCLC) - 1st Line (L1); 

Extensive stage SCLC (Es-SCLC) - 1st Line (L1)
IMpower-133, 2018
atezolizumab plus SoC1T1
placebo plus SoC0T0