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Phase 3

Development Phase

3

Upcoming Catalysts

1

Historical Events

1

Regulatory Approvals

Upcoming Catalysts
What are catalysts?
Q1 '27
RHHBYPhase 3

Satralizumab Phase 3 Est. Readout

satralizumab
Q1 2027~Q
CT.gov
00%
4mo
RHHBYPDUFA
Phase 3Approved

FDA PDUFA Date Enspryng (satralizumab) (priority review)

satralizumab
Jan 10
Source
Dec '26
RHHBYPhase 3

Satralizumab Phase 3 Est. Readout

satralizumab
Dec 2026~
CT.gov
00%
Development History
Aug '26
RHHBYPhase 2

Satralizumab Phase 2 Est. Readout

satralizumab
Aug 2026~STALE
CT.gov
00%
Competitive Landscape

0 competitors in Neuromyelitis Optica Spectrum Disorder

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Drug Information

Target Indication

Neuromyelitis Optica Spectrum Disorder

Clinical Trial

NCT04660539

Last updated: 1/9/2026

Patent & Exclusivity

No patent data available. Pre-approval drugs may not have Orange Book listings.

Regulatory Approvals
EMA6/24/2021

Enspryng

Satralizumab (Enspryng) is indicated as a monotherapy or in combination with immunosuppressive therapy (IST) for the treatment of neuromyelitis optica spectrum disorders (NMOSD) in adult and adolescent patients from 12 years of age who are anti-aquaporin-4 IgG (AQP4-IgG) seropositive.

Orphan
View on EMA
Drug Science
Mechanism of action & safety profile
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