...patients in the MT group had a significantly longer median PFS (5.4 vs 3.6 months, HR: 0.69 [95%CI: 0.51-0.92], P = 0.024) with PD-(L)1 therapy or combination PD-1 and CTLA-4….KMT2C/D mutations are frequent in NSCLC and are associated with higher TMB and improved clinical outcomes in NSCLC patients treated with ICIs.