Wonder drug Dupixent does it again to send Sanofi shares soaring

23 March 2023

Sanofi (Euronext: SAN) shares were more than 5% higher by lunchtime on Thursday after the French company’s prized asset - its Regeneron (Nasdaq: REGN)-partnered biologic Dupixent (dupilumab) - delivered more stunning trial results.

By the close, Sanofi stocks were worth more than 6% more, while shares in Regeneron closed more than 6% higher.

The primary and all key secondary endpoints were met in a Phase III trial evaluating the investigational use of Dupixent compared to placebo in adults currently on maximal standard-of-care inhaled therapy with uncontrolled chronic obstructive pulmonary disease (COPD) and evidence of type 2 inflammation.

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