NCT07318883 2026-01-06A Phase II/III Clinical Study to Evaluate HLX07 in Combination With Serplulimab and Chemotherapy Versus Placebo in Combination With Serplulimab or Pembrolizumab and Chemotherapy as First-Line Treatment in Advanced Squamous Non-Small Cell Lung CancerShanghai Henlius BiotechPhase 2/3 Not yet recruiting720 enrolled