Phase 3 HERIZON-GEA-01 Results Published in The New England Journal of Medicine Show Durable and Consistent Survival Benefit with Ziihera® (zanidatamab-hrii) Combinations in First-Line HER2+ Locally Advanced or Metastatic GEA
Wednesday, May 27, 2026 BiopharmaWatch Research 1 min read
Key Takeaway: Phase 3 HERIZON-GEA-01 Results Published in The New England Journal of Medicine Show Durable and Consistent Survival Benefit with Ziihera® (zanidatamab-hrii) Combinations in First-Line HER2+ Locally Advanced or Metastatic GEA
Price reaction · baseline $25.4 (2026-05-26 close) · hit after-hours · clean, no other ZYME news in the window
day 0 close · peak
-2.4%
BiopharmaWatch Analysis
From our catalyst data and publicly available data · not financial advice
Best trade, last catalyst
+23%
120-day peak, hindsight
Typical move
5.4%
average across 7 past catalysts
Cash runway
~35 mo
Minimal dilution risk
Lead asset
ZW49
Phase 1 · HER2-expressing Cancers
Full Press Release Details
Phase 3 HERIZON-GEA-01 Results Published in The New England Journal of Medicine Show Durable and Consistent Survival Benefit with Ziihera® (zanidatamab-hrii) Combinations in First-Line HER2+ Locally Advanced or Metastatic GEA.