Liquid chromatography coupled to multiple reaction monitoring (LC-MRM) for quantification of PD-L1 and PD1-signaling proteins in non-small cell lung carcinoma (NSCLC).

e21040Background: Improving the predictive biomarkers arena of checkpoint inhibitors (CPIs) beyond PD-L1 immunohistochemistry (IHC) is one of the most important unmet need in NSCLC. Up to 50% of pa...