Two NDA Submissions
Praxis submitted two NDAs in early 2026: ulixacaltamide for essential tremor and relutrigine for SCN2A and SCN8A developmental and epileptic encephalopathies (DEEs). Both submissions follow positive clinical readouts and productive FDA interactions.
Positive Phase III / Clinical Readouts
Ulixacaltamide (Essential3) met primary and key secondary endpoints with clinically meaningful benefit and received FDA Breakthrough Therapy designation in December. Relutrigine delivered statistically significant, rapid and durable efficacy in EMBOLD (SCN2A/SCN8A). Vormatrigine RADIANT Phase III showed 58% of patients achieving ≥50% seizure reduction at week 1 and 100% median weekly seizure reduction in OLE at week 9 (sustained to week 16).
Multiple Near-Term Catalysts
Upcoming readouts and milestones include: POWER1 topline for vormatrigine in focal epilepsy expected in Q2 2026, elsunersen EMBRAVE Part A topline from original nine patients expected H1 2026, completion of POWER2 enrollment by end of 2026, EMBRAVE3 enrollment completion and potential NDA for elsunersen later in 2026, and EMERALD enrollment completion (relutrigine broader DEE) in 2026 with potential sNDA by 2027.
Strong Balance Sheet and Cash Runway
Praxis ended Q4 2025 with $926 million in cash, equivalents and marketable securities versus $469 million at 12/31/2024 (increase of $457 million, approximately +97%). Subsequent January 2026 offering raised $621 million, resulting in pro forma cash of ~ $1.5 billion, which management expects will fund operations into 2028.
Commercial Readiness
Company is building commercial infrastructure and inventory for two near-term launches (ulixacaltamide and relutrigine), including key hires, medical education planning (major presence at AAN with ~15 presentations), and prelaunch activities designed to support a U.S. launch.
Large Addressable Markets and Revenue Potential
Management estimates: ulixacaltamide addressable ET population of ~2 million U.S. patients (7+ million with ET overall) with >$10 billion annual potential; relutrigine initial SCN2A/SCN8A U.S. addressable ~10,000 patients with potential expansion to 200,000+ DEE patients and up to ~$5 billion annual potential; vormatrigine addressable ~3 million with ~$4 billion peak potential; elsunersen potential >$1 billion.
Regulatory and Exclusivity Advantages
Relutrigine and elsunersen have Rare Pediatric Disease designation, making them eligible for pediatric review vouchers upon approval, which could add commercial and strategic value.