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U.S. Department of Health and Human Services

Search Orphan Drug Designations and Approvals

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Generic Name: 15-base residue modified antisense oligonucleotide (ASO) selectively targeting the SCN1A gene
Date Designated: 10/22/2026
Orphan Designation: treatment of Dravet syndrome
Orphan Designation Status: Designated
FDA Orphan Approval Status: Not FDA Approved for Orphan Indication
Ionis Pharmaceuticals
2855 Gazelle Court
Carlsbad, California 92010
United States

The sponsor address listed is the last reported by the sponsor to OOPD.

*Exclusivity Protected Indications are shown for approvals from 01/01/2013 to the present.
*Data for the Date Designation Withdrawn or Revoked field are shown for designations withdrawn or revoked after 08/12/2013.
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