An Efficacy and Safety Study of Ravulizumab in Adult Participants With NMOSD
The primary purpose of this study is to evaluate the efficacy and safety of ravulizumab for the treatment of adult participants with NMOSD.
- Neuromyelitis Optica
- Neuromyelitis Optica Spectrum Disorder
- Eligible Ages
- Over 18 Years
- Eligible Genders
- Accepts Healthy Volunteers
- Anti-aquaporin-4 antibody-positive and a diagnosis of NMOSD as defined by the 2015 international consensus diagnostic criteria.
- At least 1 attack or relapse in the last 12 months prior to the Screening Period.
- Expanded Disability Status Scale score ≤7.
- Participants who enter the study receiving supportive immunosuppressive therapy must be on a stable dosing regimen of adequate duration prior to Screening.
- Body weight ≥40 kilograms.
- Contraceptive use by men or women should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies.
- History of neisseria meningitidis infection.
- Human immunodeficiency virus (HIV) infection (evidenced by HIV-1 or HIV-2 antibody titer).
- Previously or currently treated with a complement inhibitor.
- Use of rituximab or mitoxantrone within 3 months prior to Screening.
- Use of IV immunoglobulin within 3 weeks prior to Screening.
- Phase 3
- Study Type
- Intervention Model
- Single Group Assignment
- Intervention Model Description
- External Placebo-Controlled, Open-Label Design
- Primary Purpose
- None (Open Label)
|During the Primary Treatment Period, all participants will receive open-label ravulizumab via intravenous (IV) infusion starting on Day 1. The Primary Treatment Period will continue until the last enrolled participant completes Week 26 in the study (expected to be approximately 2 years after the first participant is enrolled). After completion of the Primary Treatment Period, all participants will have the opportunity to continue receiving ravulizumab in the Long-Term Extension Period of the study. For each participant, the Long-Term Extension Period continues for up to 2 years, or until ravulizumab is approved and/or available (in accordance with country-specific regulations), whichever occurs first.||
- Alexion Pharmaceuticals
Study ContactAlexion Pharmaceuticals Inc.