Drugs / zorevunersen
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zorevunersen

also known as STK-001

Antisense oligonucleotide targets SCN1A via activation

Developed for
Dravet syndrome
Investigated by
Stoke Therapeutics, Inc

Regulatory milestones approvals, filings & regulatory actions · 1 recorded

MilestoneJurisdictionBrandIndicationDateSentence it was read from
Filed US (FDA) — Dravet syndrome —

“Submitted an Investigational New Drug (IND) application for STK-001 to the FDA in late 2019.” stoketherapeutics.com ↗

Trials 3

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 1/21 trial · 1 met primary
Phase 1/2 NCT04442295 Jun 2020 → Nov 2023 Dravet syndrome Stoke Therapeutics, Inc Completed Met primary
Phase 21 trial · 1 met primary
Phase 2 NCT04740476 Jan 2021 → Mar 2029 expected Dravet syndrome Stoke Therapeutics, Inc Active not recruiting Met primary
Phase 31 trial
Phase 3 NCT06872125 Jun 2025 → Mar 2027 expected Dravet syndrome Stoke Therapeutics, Inc Recruiting No outcome recorded

News releases announcing trial results or a regulatory action · 40

DateIssuerRelease
2026-09-03 Stoke Therapeutics, Inc Results Stoke Therapeutics and Biogen Present Long-Term Clinical Data that Support the Disease-Modifying Potential of Zorevunersen, an Investigational Medicine for the Treatment of Dravet Syndrome, at the 16th European Epilepsy Congress (EEC) stoketherapeutics.com ↗
Four-year OLE results showed substantial and durable reductions in seizures and continuing improvements in cognition and behavior.
2026-09-01 Stoke Therapeutics, Inc Results Stoke Therapeutics and Biogen Announce Presentations of Clinical Data from Studies of Zorevunersen, an Investigational Medicine for the Treatment of Dravet Syndrome, at the 16th European Epilepsy Congress (EEC) stoketherapeutics.com ↗
Improvements in cognition and behavior were sustained through 4 years, in addition to durable seizure reductions and a generally well-tolerated safety profile.
2026-05-07 Stoke Therapeutics, Inc Results Stoke Therapeutics Announces First Quarter 2026 Financial Results and Provides Business Updates stoketherapeutics.com ↗
New 4-year longitudinal data from the Phase 1/2a open-label extension (OLE) studies provide additional support for the disease-modifying potential of zorevunersen, an investigational medicine for the treatment of Dravet syndrome
2026-03-04 Stoke Therapeutics, Inc Results The New England Journal of Medicine Publishes First Data to Demonstrate the Potential for Disease Modification in Dravet Syndrome stoketherapeutics.com ↗
The publication includes results from two completed Phase 1/2a and ongoing open-label extension (OLE) studies that demonstrate, for the first time, the potential for disease modification in people living with Dravet syndrome.
2025-12-05 Biogen Results Biogen and Stoke Therapeutics Present Data that Further Support the Disease-Modifying Potential of Zorevunersen, an Investigational Medicine for the Treatment of Dravet Syndrome, at the 2025 American Epilepsy Society (AES) Annual Meeting biogen.com ↗
Long-term Phase 1/2a and open label extension (OLE) data for zorevunersen on top of standard of care anti-seizure medicines (ASMs) demonstrate durable seizure reductions, including increases in seizure-free days, in addition to improvements in cognition, behavior and quality of life
2025-12-05 Stoke Therapeutics, Inc Results Stoke Therapeutics and Biogen Present Data that Further Support the Disease-Modifying Potential of Zorevunersen, an Investigational Medicine for the Treatment of Dravet Syndrome, at the 2025 American Epilepsy Society (AES) Annual Meeting stoketherapeutics.com ↗
2025-12-01 Biogen Results Biogen and Stoke Therapeutics Announce Presentations at the 2025 American Epilepsy Society Annual Meeting biogen.com ↗
New analyses from the ongoing open label extension (OLE) studies and findings from electroencephalogram (EEG) assessments in patients with Dravet syndrome treated with zorevunersen support the potential for disease modification
2025-12-01 Stoke Therapeutics, Inc Results Stoke Therapeutics and Biogen Announce Presentations at the 2025 American Epilepsy Society Annual Meeting stoketherapeutics.com ↗
New analyses from the ongoing open label extension (OLE) studies and findings from electroencephalogram (EEG) assessments in patients with Dravet syndrome treated with zorevunersen support the potential for disease modification
2025-10-09 Stoke Therapeutics, Inc Results Stoke Therapeutics and Biogen Present New Data at the 54th Child Neurology Society (CNS) Annual Meeting that Support the Potential of Zorevunersen as a Disease-Modifying Medicine for Dravet Syndrome stoketherapeutics.com ↗
New two-year data from an analysis that was initially performed to understand the potential effects of the Phase 3 dosing regimen on cognition and behavior showed continuing improvements at two years.
2025-09-02 Biogen Results Biogen and Stoke Therapeutics Present Data at the 36th International Epilepsy Congress that Support the Potential for Zorevunersen to be the First Disease-Modifying Medicine for Dravet Syndrome biogen.com ↗
2025-09-02 Stoke Therapeutics, Inc Results Stoke Therapeutics and Biogen Present Data at the 36th International Epilepsy Congress that Support the Potential for Zorevunersen to be the First Disease-Modifying Medicine for Dravet Syndrome stoketherapeutics.com ↗
Stoke Therapeutics , Inc. (Nasdaq: STOK), a biotechnology company dedicated to restoring protein expression by harnessing the body’s potential with RNA medicine, and Biogen Inc. (Nasdaq: BIIB), today announced data from Phase 1/2a and open-label extension (OLE) studies of zorevunersen that support the potential for zorevunersen to be the first disease-modifying medicine for Dravet syndrome.
2025-08-25 Biogen Results Biogen and Stoke Therapeutics Announce Presentations of Clinical Data from Studies of Zorevunersen for the Potential Treatment of Dravet Syndrome at the 36th International Epilepsy Congress biogen.com ↗
3-year data from open-label extension (OLE) studies demonstrate the potential for disease modification with durable seizure reductions and improvements in cognition and behavior on top of standard anti-seizure medicines

All press releases naming this drug 50 releases

DateIssuerRelease

Evidence & citations 6 cited values

Every value below carries the sentence it was read from. 3 sources stand behind the page.

FieldValueCited text
Known as zorevunersen ClinicalTrials.gov intervention name — accepted as the source's own label NCT04740476 ↗
1

NCT06872125 ↗

Known as STK-001 “Evaluating the efficacy, safety, and tolerability of Zorevunersen (STK-001) in Patients With Dravet Syndrome” NCT06872125 ↗
2

“zorevunersen (STK-001)” NCT04740476 ↗

NCT04442295 ↗

Action Restore “STK-001 is designed to upregulate Nav1.1 protein expression from the nonmutant (wild-type) copy of the SCN1A gene to restore physiological Nav1.1 levels.” NCT04442295 ↗
Modality Antisense oligonucleotide “STK-001 is an antisense oligonucleotide (ASO)” NCT04442295 ↗
Route Intrathecal “administered as an intrathecal injection” NCT04442295 ↗
Target SCN1A “STK-001 is designed to upregulate Nav1.1 protein expression from the nonmutant (wild-type) copy of the SCN1A gene” NCT04442295 ↗