- Provides a clinically meaningful impact on motor function and a favorable impact on other symptoms seen in AxD, an ultra-rare, progressive and often fatal neurological disorder - - Priority Review Voucher (PRV) awarded in conjunction with approval - - ZANVASTRO marks Ionis’ first independent
ZANVASTRO™ (zilganersen) approved by the FDA as the first and only disease modifying treatment for Alexander disease (AxD) in pediatric and adult patients
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September 3, 2026
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Ionis Pharmaceuticals, Inc. News Releases
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