Nusinersen - Biogen/Ionis Pharmaceuticals
Alternative Names: BIIB-058; IONIS-SMNRx; ISIS-396443; ISIS-SMNRx; SpinrazaLatest Information Update: 26 Sep 2025
At a glance
- Originator Cold Spring Harbor Laboratory; Isis Pharmaceuticals
- Developer Biogen; Ionis Pharmaceuticals
- Class Antisense oligonucleotides
- Mechanism of Action RNA interference; Survival of motor neuron 2 protein expression stimulants
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Orphan Drug Status
Orphan designation is assigned by a regulatory body to encourage companies to develop drugs for rare diseases.
- New Molecular Entity Yes
Highest Development Phases
- Marketed Spinal muscular atrophy
Most Recent Events
- 23 Sep 2025 Biogen receives complete response letter from the FDA for nusinersen in Spinal muscular atrophy (SMA)
- 27 Jun 2025 Efficacy and adverse events data from a phase II/III DEVOTE trial in Spinal muscular atrophy released by Biogen
- 27 Jun 2025 Efficacy and safety data from a phase II NURTURE trial in Spinal muscular atrophy released by Biogen