Narsoplimab - Omeros Corporation
Alternative Names: anti-MASP-2 monoclonal antibody; MASP-2 antibody - Omeros Corporation; MASP-2 therapeutic; Narsoplimab-wuug - Omeros Corporation; OMS 00620646; OMS 620646; OMS 721; YARTEMLEALatest Information Update: 31 Dec 2025
At a glance
- Originator Omeros Corporation
- Class Anti-inflammatories; Antithrombotics; Eye disorder therapies; Monoclonal antibodies; Urologics; Vascular disorder therapies
- Mechanism of Action MASP2 protein inhibitors
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Orphan Drug Status
Yes - IgA nephropathy; Thrombotic microangiopathies
Orphan designation is assigned by a regulatory body to encourage companies to develop drugs for rare diseases.
- New Molecular Entity Yes
- Available For Licensing Yes
Highest Development Phases
- Registered Thrombotic microangiopathies
- Phase II COVID 2019 infections
- Preclinical Adult respiratory distress syndrome
- Discontinued Glomerulonephritis; Haemolytic uraemic syndrome; IgA nephropathy; Lupus nephritis; Membranous glomerulonephritis; Stroke; Wet age-related macular degeneration
Most Recent Events
- 24 Dec 2025 Omeros Corporation plans to launch Narsoplimab for Thrombotic microangiopathies in USA in January 2026
- 24 Dec 2025 Pooled efficacy and adverse events data from the phase II OMS721-TMA-001 pivotal trial and Expanded access programme in Thrombotic microangiopathies released by Omeros Corporation
- 24 Dec 2025 Registered for Thrombotic microangiopathies (In children, In adolescents, In adults) in USA (IV) - First Global Approval