Atezolizumab Plus CArboplatin Plus Nab-paclitaxel

All eligible patients will receive carboplatin Area Under the Curve (AUC) 2 dd 1,8,15 q 28 dd, paclitaxel 90 mg/m2 dd 1,8,15 q 28 dd and atezolizumab 840 mg dd 1,15 q 28 dd and they will continue this treatment until progression of disease, unacceptable toxicity, death, withdrawal of consent, loss to follow-up, or study termination by the Sponsor. In case of interruption of one of the three drugs for unacceptable toxicity and/or medical decision, the patient may continue to receive one or more of the remaining drugs until progression per RECIST v1.1. If the investigator decides to interrupt carboplatin and paclitaxel (for toxicity and/or medical decision), atezolizumab may be continued as maintenance therapy until disease progression or unacceptable toxicity. All patients who discontinue study treatment (including due to PD) will be followed for survival approximately every 3 months for 2 years from last patient enrolled or until death, withdrawal of consent, loss to follow-up, or study termination by the Sponsor. Imaging tumor evaluation will be performed every 12 weeks.