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Phase 3Data readout

Zorevunersen

Dravet Syndrome

BIIBBiogen
Expected catalystAugust 15, 2027Company guidance: Aug 15, 2027

Catalyst overview

Event details

Drug or asset
Zorevunersen
Development stage
Phase 3
Event type
Data readout
Indication
Dravet Syndrome
Research signalsHigh management interest

Research summary

What is being tracked?

This catalyst tracks a Phase 3 data readout for Zorevunersen in Dravet Syndrome. The expected timing is based on the latest available company guidance and may change.

Development notes

EMPEROR Study. Partnership w/ Stoke Therapeutics. 8/11/25- First patient dosed. 9/2/25- Presented data at the 36th IEC. 10/9/25- New data presented at CNS'25. 01/11/26:- EMPEROR Ph3 enrollment completion now expected Q2 2026; data readout Mid-2027; rolling NDA planned H1 2027.

Verification

Primary source

Confirm timing and program details against the company announcement or filing.

Open source

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Company

Biogen

BIIB · NasdaqGS
Industry
Biotechnology
Pipeline assets
27
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Updated Aug 23, 2026. Dates can change; this is not investment advice.

Disclaimer: Biotech Stock Intel is an independent research platform. Information is provided for informational purposes only and is not investment or medical advice. Always verify catalyst dates against primary sources and conduct your own research.
Biotech Stock Intel© 2026 Biotech Stock Intel
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