Overall, 805 pts were randomized (n=535, TIS; n=270, TAX)...With a 19-mo median follow-up (441 OS events), median OS ITT was significantly longer in Arm A vs B (17.2 vs 11.9 mo; HR=0.64 [95% CI: 0.53, 0.78]; P<.0001). OS benefit was also observed in the PD-L1 high analysis set (19.1 vs 11.9 mo; HR=0.52 [95% CI: 0.38, 0.71])...RATIONALE 303 demonstrated that, as 2 or 3L therapy in pts with advanced NSCLC, TIS was tolerable and prolonged OS by 5-7 mo with improved PFS and ORR...