Ivonescimab Combined With Chemoradiotherapy in High-Risk Locoregionally Advanced Nasopharyngeal Carcinoma

Ivonescimab (AK112) is a novel PD-1/VEGF bispecific antibody designed to simultaneously block PD-1-mediated immune evasion and inhibit VEGF-driven angiogenesis. In this study, ivonescimab is administered intravenously at a dose of 10 mg/kg every 3 weeks, starting on Day 1 of induction chemotherapy (3 cycles), followed by concurrent chemoradiotherapy (no ivonescimab), and then continued as adjuvant monotherapy for 9 additional cycles.