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Ionis presents new data from pivotal study of zilganersen in Alexander disease (AxD) at AAN 2026 Annual Meeting

CARLSBAD, Calif., April 21, 2026--Ionis Pharmaceuticals, Inc. (Nasdaq: IONS) today announced additional positive results from the pivotal study of zilganersen in children and adults living with Alexander disease (AxD), a rare, progressive and often fatal neurological condition with no approved disease-modifying treatments. These findings, which will be presented today at the 2026 American Academy of Neurology (AAN) annual meeting, build on previously reported positive topline data and provide a

articleIonis Pharmaceuticals, Inc.April 21, 202610/company/ionis-pharmaceuticals-inc/news/ionis-presents-new-data-from-pivotal-study-of-zilganersen-in-alexander-disease-axd-at-aan-2026-annual-meeting
Ionis presents new data from pivotal study of zilganersen in Alexander disease (AxD) at AAN 2026 Annual Meeting

About this update from Ionis Pharmaceuticals, Inc.

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