Registro de fuente primaria

Grado decisivoResultados principales

Zymeworks: topline positivo del ensayo fase 3 HERIZON-GEA-01 de zanidatamab en GEA HER2+ de 1L

Phase 3 HERIZON-GEA-01 met its PFS primary endpoint for zanidatamab plus chemotherapy (with or without tislelizumab) versus trastuzumab plus chemotherapy. The triplet arm also met the OS endpoint; the doublet arm showed a clinically meaningful OS trend. Jazz plans to file a supplemental BLA in 1H-2026.

Datos clave

Presentado
17 nov 2025, 11:13
Evento
Resultados principales
Dirección
Positivo
Fuente
SEC 8-K
Confianza
Con fuente
Calendario
Decisión de la FDA (PDUFA) · 25 ago 2026 · Positivo
Tendencia de supervivencia global
fuerte tendencia hacia la significación estadística (brazo solo quimioterapia)
Países
más de 30
Tamaño del ensayo
914 pacientes
Significación estadística de supervivencia global
estadísticamente significativa (brazo tislelizumab)
Sitios del ensayo
aproximadamente 300
Significación estadística de supervivencia libre de progresión
altamente estadísticamente significativa

Extracto de la fuente

EX-99.1 2 d17392dex991.htm EX-99.1 EX-99.1 Exhibit 99.1 Zymeworks Announces Positive HERIZON-GEA-01 Phase 3 Results Supporting Ziihera ® (zanidatamab-hrii) as HER2-Targeted Agent-of-Choice and New Standard of Care in First-Line HER2-Positive Locally Advanced or Metastatic Gastroesophageal Adenocarcinoma • Ziihera ® plus chemotherapy showed a clinically meaningful and statistically significant improvement in PFS versus trastuzumab and chemotherapy, and a clinically meaningful effect with a strong trend toward statistical significance for OS at the first OS interim analysis • Ziihera plus Tevimbra ® (tislelizumab) and chemotherapy demonstrated clinically meaningful and statistically significant improvements in OS and PFS versus trastuzumab and chemotherapy • Results support Ziiher

SEC 8-K

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