Arialys Therapeutics announces US FDA fast track designation for ART5803, the first precision therapeutic candidate in development for the treatment of anti-NMDA receptor encephalitis

Arialys Therapeutics

9 July 2026 - Arialys Therapeutics today announced that the US FDA has granted fast track designation to ART5803 for the treatment of anti-NMDA receptor encephalitis. 

ART5803 is a novel therapeutic candidate designed using structural biology to specifically inhibit the pathogenic effects of autoantibodies that target the NMDA receptor.

Read Arialys Therapeutics press release

Michael Wonder

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Michael Wonder

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Medicine , US , Fast track