Drug Profile

Elsunersen - Praxis-Precision-Medicines

Alternative Names: PRAX-222

Latest Information Update: 21 Jan 2026

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At a glance

Originator Praxis Precision Medicines
Class Antiepileptic drugs; Antisense oligonucleotides
Mechanism of Action Gene silencing; SCN2A protein expression inhibitors

Orphan Drug Status

Orphan designation is assigned by a regulatory body to encourage companies to develop drugs for rare diseases.

Yes - Epilepsy
New Molecular Entity Yes

Highest Development Phases

Phase III Epilepsy

Most Recent Events

12 Jan 2026 Praxis-Precision-Medicines announces intention to submit NDA to US FDA for Epilepsy in 2027
09 Dec 2025 Praxis Precision Medicines completes type C meeting with US FDA
04 Aug 2025 Phase-III clinical trials in Epilepsy (In adolescents, In children, In neonates, In infants) in USA (Intrathecal) (NCT07019922)

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