Biotechnology
Ultragenyx's $1 Billion Wipeout Exposes the Harsh Realities of Rare Disease Drug Development
The final days of 2025 delivered a devastating blow to Ultragenyx Pharmaceutical as the company lost over $1 billion in market value following the failure of its bone disease therapy setrusumab in two pivotal Phase III trials. The December 29 announcement that the drug failed to reduce fracture rates in