Bristol Myers Squibb Halts Clinical Development of Prothena’s PRX019
Bitget2026/10/29 20:14- Bristol Myers Squibb notified Prothena on October 28, 2026, it would stop clinical development of PRX019 following a strategic review.
- The license, signed in May 2024 with an $80 million upfront payment, will terminate on January 28, 2027.
- Termination eliminates eligibility for up to $617.5 million in development, regulatory and sales milestones, as well as tiered royalties.
- Previously reported Phase 1 results from the first half of 2026 showed favorable safety and tolerability, meeting prespecified biological-response targets.
- Bristol Myers Squibb continues moponetug’s Phase 2 Alzheimer’s trial, with up to $562.5 million in regulatory and sales milestones remaining available.
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