This is a phase II controlled randomized study comparing atezolizumab as single agent to the combination of atezolizumab and bevacizumab in patients with chemonaive metastatic NSCLC with PD-L1 expression.~A total of maximum of 206 patients will be enrolled in the study. Patients will be treated with atezolizumab (1200 mg) every 3 weeks (6-week cycles) or the combination of atezolizumab (1200 mg) every 3 weeks (6-week cycles) plus bevacizumab (15 mg/kg) every 3 weeks until disease progression, unacceptable toxicity or patient refusal. Disease evaluation, along with various assessments, will be made every 3 weeks and every 6 weeks and follow-up every 3 months. Toxicities will be evaluated throughout the study period. A follow-up of 12 months is planned for each patient from the end of treatment .The study will be performed in approximately 20 centers across Italy.
phase II controlled randomized study comparing atezolizumab as single agent to the combination of atezolizumab and bevacizumab in patients with chemonaive metastatic NSCLC with PD-L1 expression. All NSCLC patients with tumor tissue available for biomarker assessment and candidate for first-line therapy are considered eligible for the study. After evaluation of all inclusion and exclusion criteria and after informed consent signature all eligible patients will be randomized to atezolizumab (Arm A) or to the combination of atezolizumab and bevacizumab (Arm B). Disease assessment will be performed every 6 weeks.