1417PPreliminary results of PRINCiPe (predictors of resistance to immunotherapy with nivolumab [NIV]) study in advanced pretreated non-small cell lung cancer (APNSCLC), investigating the role of an immune genomic signature (IGS) including JAK2, JAK3, PIAS4, PTPN2, STAT3, IFNAR2 alterations. (23rd October 2018) - Pilotto, S