RecruitingDrug trialAn Observational Study to Assess the Effectiveness and Safety of a Cemiplimab in Adult Patients With Advanced Non-Small Cell Lung Cancer (NSCLC) in Routine Clinical Practice Settings in EuropeThis study is focused on patients with non-small cell lung cancer (NSCLC) and have been prescribed a cemiplimab (Libtayo®) based treatment regimen under standard care. The goal of this study is to learn more about the use, benefits, and safety of cemiplimab based treatment regimens in participants with NSCLC.