In addition, the mutation frequency of multiple genes changed remarkably between the OS >12 months cohort and the OS ≤12 months cohort in the metastatic sample cohort. The top five upregulated genes (AZACN: ARID1A, ZFHX3, ATM, CDKN2A, and NTRK3) and the bottom two downregulated genes (BRAF and PIK3CA) were selected as combined predictors for screening responders from non-responders. The results suggested that patients harboring AZACN(+) received more OS benefits from immunotherapy than those harboring AZACN(−) or harboring BRAF and PIK3CA (+)...