According to the KRAS mutation status, the results of OS analysis in the OAK research, a randomised, double-blind III period clinical study, showed that patients with KRAS-mutant NSCLC could also benefit from atezolizumab treatment in terms of OS (HR = 0.71; 95% CI: 0.38–1.35) (3). This evidence concerns the gene KRAS and non-small cell lung carcinoma.