Atezolizumab Plus Bevacizumab in First Line NSCLC Patients

Inclusion Criteria

• Male or female, aged ≥ 18 years old
• ECOG performance status of 0 or 1.
• Histologically or cytologically confirmed, Stage IIIB or IV non-squamous NSCLC according to 8th version of the International Association for the Study of Lung Cancer Staging Manual in Thoracic Oncology
• No prior treatment for Stage IIIB or IV non-squamous NSCLC.
• Patients who have received prior neo-adjuvant, adjuvant chemotherapy, radiotherapy, or chemo-radiotherapy with curative intent for non-metastatic disease must have experienced a treatment-free interval of at least 6 months from randomization since the last chemotherapy, radiotherapy, or chemo-radiotherapy.
• Patients with a treated asymptomatic CNS metastasis are eligible, provided they meet all of the following criteria:
• Only supratentorial and cerebellar metastases allowed (i.e., no metastases to midbrain, pons, medulla or spinal cord).
• No ongoing requirement for corticosteroids as therapy for CNS disease.
• No stereotactic radiation within 7 days or whole-brain radiation within 14 days prior to randomization.
• No evidence of interim progression between the completion of CNS-directed therapy and the screening radiographic study. Patients with new asymptomatic CNS metastases detected at the screening scan must receive radiation therapy and/or surgery for CNS metastases. Following treatment, these patients may then be eligible without the need for an additional brain scan prior to inclusion, if all other criteria are met.
• Patients with high-intermediate Tumour Mutational Burden analysed by Foundation Medicine (≥10 mutations/ MB) performed by a Foundation Medicine laboratory on previously obtained archival tumour tissue or tissue obtained from a biopsy at prescreening (sample must fulfil minimal sample requirements of 20% tumour cellularity and a minimum surface of 25mm2).
• Measurable disease, as defined by RECIST v1.1. Previously irradiated lesions can only be considered as measurable disease if disease progression has been unequivocally documented at that site since radiation and the previously irradiated lesion is not the only site of disease.
• Adequate hematologic and organ function defined by the following laboratory results obtained within 14 days prior to randomization:

Neutrophils ≥ 1500 cells/μL without granulocyte colony-stimulating factor support.

• Lymphocyte count ≥ 500/μL.
• Platelet count ≥ 100,000/μL without transfusion.
• Haemoglobin ≥ 9.0 g/dL. Patients may be transfused to meet this criterion.
• INR or aPTT ≤ 1.5 × upper limit of normal (ULN). This applies only to patients who are not receiving therapeutic anticoagulation; patients receiving therapeutic anticoagulation should be on a stable dose.
• AST, ALT, and alkaline phosphatase ≤ 2.5 × ULN, with the following exceptions: Patients with documented liver metastases: AST and/or ALT ≤ 5 × ULN. Patients with documented liver or bone metastases: alkaline phosphatase ≤ 5 × ULN.
• Serum bilirubin ≤ 1.25 × ULN. Patients with known Gilbert disease who have serum bilirubin level ≤ 3 × ULN may be enrolled.
• Serum creatinine ≤ 1.5 × ULN or creatinine clearance of ≥45ml/min (based on the Cockcroft Gault formula).
• All patients are notified of the investigational nature of this study and signed a written informed consent in accordance with institutional and national guidelines, including the Declaration of Helsinki prior to any trial-related intervention.
• For female patients of childbearing potential, agreement (by patient and/or partner) to use a highly effective form(s) of contraception that results in a low failure rate ( 2 weeks prior to randomization.
• Leptomeningeal disease.
• Uncontrolled tumour-related pain. Patients requiring pain medication must be on a stable regimen at study entry. Symptomatic lesions amenable to palliative radiotherapy (e.g., bone metastases or metastases causing nerve impingement) should be treated prior to initiation of study drug. Patients should