118 NSCLC EGFR and ALK negative patients who progressed after sequential CT-IO and who received at least 12 weeks IO (defining IO secondary resistance), were randomized (2:1) in OSE2101 or SoC (docetaxel or pemetrexed)….best response to study treatment was CR/PR/SD, median OS with OSE2101 was 12.6 [8.8;16.8] months and 8.0 [5.5; 11.1] when best response was DP (HR 0.61 [0.36; 1.04]); with CT, median OS was respectively 9.8 [7.4; 13.8] and 5.0 [1.0; 7.2] months (HR 0.34 [0.14; 0.84].