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FDA Approves Ionis ASO Zanvastro for Alexander Disease From Infancy

Published

4 September 2026

Topic

opportunities

◆ Sectors

Biotech

◆ Geography

United States

◆ Source

Read at genomeweb.com →

◆ Verified

Fusion42 · 4 September 2026 · Fusion42 review

The US FDA has approved Ionis Pharmaceuticals' antisense oligonucleotide Zanvastro (zilganersen) to treat Alexander disease from infancy through adulthood.

This Wire brief sits within Fusion42's coverage of Biotech, and 15 sources have reported it between 3 Sep 2026 and 22 Sep 2026.

◆ ◆ The Wire takeaway

You have a new regulatory precedent for launching antisense treatments in rare pediatric diseases in the US. Now is the time to talk to US payers and patient groups to speed market access and uptake.

◆ Coverage

15 sources · first reported 3 Sep 2026 · latest 22 Sep 2026

◆ Related on Wire

◆ Topics

Biotechfda-approvalantisense-oligonucleotidesrare-diseasealexander-diseasepharma