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Jazz Pharmaceuticals highlights Ziihera launch, targets $3-$5 billion zanidatamab peak sales opportunity

PUBT·08/26/2026 09:22:01
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Jazz Pharmaceuticals highlights Ziihera launch, targets $3-$5 billion zanidatamab peak sales opportunity
  • Jazz Pharmaceuticals highlighted the US commercial launch of Ziihera (zanidatamab-hrii) for first-line HER2-positive advanced gastroesophageal adenocarcinoma.
  • Label supports use with fluoropyrimidine-platinum chemotherapy with tislelizumab for IHC 3+ or IHC 2+/ISH+ disease, regardless of PD-L1 status.
  • Median overall survival was 26.4 months for Ziihera-chemotherapy-tislelizumab versus 19.2 months for trastuzumab-chemotherapy; p=0.0043.
  • Median progression-free survival was 12.4 months versus 8.1 months; objective response rate was 67% versus 63%.
  • Presentation reiterated a $3 billion-$5 billion peak sales opportunity for zanidatamab across gastroesophageal, biliary tract, breast, and other HER2-expressing cancers.


Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Jazz Pharmaceuticals plc published the original content used to generate this news brief on August 25, 2026, and is solely responsible for the information contained therein.