RecruitingPhase 2Drug trialA Study of Sotorasib in People With Non-Small Cell Lung CancerThe researchers are doing this study to see if sotorasib is a safe and effective treatment for people with advanced non-small cell lung cancer (NSCLC) with a KRAS G12C mutation who have not received treatment for their cancer since it became advanced. (Participants have not received a "first-line therapy" since their cancer became advanced.)