66 patients with non-squamous NSCLC treated with PD-1/PD-L1 inhibitors at MDACC (61% pembrolizumab, 24% nivolumab, 8% atezolizumab, 5% durvalumab/tremelimumab) with available STK11/LKB1 NGS-based genomic profiling and positive tumor cell PD-L1 expression...STK11/LKB1 genomic alterations are associated with de novo resistance to PD-1/PD-L1 inhibitors even among PD-L1-positive non-squamous NSCLC patients, suggesting that their effect is at least partially independent of PD-L1 expression.