Pts were randomized 1:1 (stratified by IMDC risk score, tumor PD-L1 expression, region) to N 240 mg flat dose IV Q2W + C 40 mg PO QD vs SUN 50 mg PO for 4 wk (6-wk cycles)...ORR (95% CI) was higher with N+C vs S (56% [50–61] vs 28% [24–34]), and 12% vs 5% of pts achieved complete response (CR), respectively. Median duration of response was 23.1 vs 15.2 mo for N+C vs S. PFS, OS, and response are reported across prespecified IMDC risk groups...Responses with N+C were durable, with higher CR rates with N+C vs S regardless of IMDC risk group.