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ION337

Oligonucleotide (Antisense oligonucleotide) · developed by IONIS PHARMACEUTICALS

Phase 1/2 Most advanced trial

IONS Developer

1 Registered trials

What is ION337?

ION337 is an antisense oligonucleotide administered by intrathecal injection. It is being studied in Dravet syndrome.

Summary written with AI from the sources listed at the end of this page.

At a glance

Drug type: Oligonucleotide (Antisense oligonucleotide)
Therapy area: Neurology
Developer: IONIS PHARMACEUTICALS (IONS)
FDA status: Investigational, not approved in the US. Most advanced trial: Phase 1/2

🧪 Clinical trials

Trial	Phase	Condition	Status	Sponsor
NCT07531745	Phase 1/2	Dravet Syndrome	Recruiting	IONS

Trials of the companies BioRadar tracks, from ClinicalTrials.gov, most advanced phase first.

Conditions studied

Dravet Syndrome

More from IONIS PHARMACEUTICALS

Donidalorsen FDA approved Olezarsen FDA approved Zilganersen FDA approved BIIB094 Phase 1 ION224 Phase 2 ION269 Phase 1 ION356 Phase 1 ION363 Phase 3 ION440 Phase 1/2 ION464 Phase 1 ION717 Phase 1/2 ION775 Phase 2

Sources

ClinicalTrials.gov NCT07531745

Updated Oct 3, 2026. Something wrong or missing? Report it on the IONS page.

Follow IONS, the company behind ION337

See IONS's upcoming FDA decisions, trial readouts, cash runway and dilution risk, updated every day from SEC, FDA and ClinicalTrials.gov filings.

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Data: FDA (Drugs@FDA, Purple Book, DailyMed), NIH (NCI Thesaurus, GSRS, RxNorm), ClinicalTrials.gov • Informational purposes only, not medical or investment advice. • All drugs A–Z