NCT04247282 2025-07-16Anti-PD-L1/TGF-beta Trap (M7824) Alone and in Combination With TriAd Vaccine and N-803 for Resectable Head and Neck Squamous Cell Carcinoma Not Associated With Human Papillomavirus InfectionNational Institutes of Health Clinical Center (CC)Phase 1/2 Completed21 enrolled 16 charts