Fitusiran Delay Dents Sanofi’s Hemophilia Challenge

Company Still Aiming For Universal Therapy

New data show fitusiran’s promise across hemophilia A and B, but a switch to a lower dose prompted by safety concerns will delay its filing until 2024.

Sanofi Lyon
A move to target hard-to-treat blood disorders is part of Sanofi's strategy, but has been hit by numerous trial delays. • Source: Alamy

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