This study is a prospective, multicenter, observational study designed to generate real-world evidence on the routine first-line use of atezolizumab in patients with advanced non-small cell lung cancer (NSCLC) who exhibit high PD-L1 expression and have no targetable mutations. The study does not impose any protocol-mandated procedures or intervention requirements, and all assessments, treatments, and follow-up visits are carried out according to local standards of care at each participating center.
Data will be collected prospectively from routine medical records and will include information typically obtained during standard clinical management, such as imaging assessments, laboratory results, performance status evaluations, treatment exposure, and safety monitoring. Clinical outcomes will be analyzed to describe real-world treatment patterns, variations in clinical practice, and survival and safety trends in a national cohort. Approximately 150 patients are expected to be enrolled to ensure adequate precision in estimating long-term outcomes within this population.
