Ziihera® (zanidatamab-hrii) Combinations Demonstrate Sustained Survival at Three Years in First-Line HER2+ Advanced Gastroesophageal Adenocarcinoma at ESMO 2026
Jazz Pharmaceuticals (JAZZ) reported updated results from the Phase 3 HERIZON-GEA-01 trial, showing Ziihera® (zanidatamab-hrii) combinations improved overall survival in HER2+ advanced gastroesophageal adenocarcinoma. Key findings: 39.8% of patients alive at three years with Ziihera plus tislelizumab and chemotherapy, median OS of 27.0 months. Ziihera plus chemotherapy reduced death risk by 24% vs. trastuzumab. Results presented at ESMO 2026.




