Atezolizumab and Rechallenge Chemotherapy in Relapsed Patients With Extensive-stage Small Cell Lung Cancer (ES-SCLC).
The goal of this clinical trial is to learn if a combination of atezolizumab and standard chemotherapy works to treat sensitive Extensive-stage Small Cell Lung Cancer, progressing after first-line of treatment.
The main questions it aims to answer are:
* Does combination of atezolizumab and standard chemotherapy increase overall survival?
* What medical problems do participants have when taking combination of atezolizumab and standard chemotherapy?
Participants will:
* take atezolizumab and standard chemotherapy every 3 weeks for 4 cycles and than atezolizumab every 3 weeks up to 18 cycles