Zymeworks Stock Surges 29% on Breakthrough Cancer Drug Results
Zymeworks Inc. (ZYME) shares skyrocketed 29% following promising Phase 3 trial data for its HER2-targeted gastric cancer treatment Ziihera. The biopharma's drug demonstrated statistically significant improvements in progression-free survival, potentially positioning it as a first-line therapy for gastroesophageal adenocarcinoma.
Jazz Pharmaceuticals, Zymeworks' commercialization partner, plans regulatory submissions in early 2026, triggering a 20.6% rally in JAZZ shares. Analyst price targets were revised upward, with Leerink's Andrew Berens raising his target to $37 from $24.