This is a phase II clinical trial aimed at the evaluation of the safety and clinical activity of tiragolumab in combination with carboplatin, pemetrexed and atezolizumab in the first line treatment of metastatic non-squamous NSCLC patients with asymptomatic untreated brain metastases. Patients with at least one untreated evaluable brain metastasis of 5 mm or more will be enrolled. Lesions previously treated with SRS may not be used as target lesions. Patients will be required to undergo an on-treatment brain MRI at three weeks for safety purposes. Additional restaging will occur at nine-week intervals. PD-L1 tumor proportion score (TPS) will be determined utilizing an FDA-approved test by local testing.
This clinical trial is aimed at the evaluation of the safety and clinical activity of tiragolumab in combination with carboplatin, pemetrexed and atezolizumab in the first line treatment of metastatic non-squamous NSCLC patients with asymptomatic untreated brain metastases.