CI

At a glance

ClinicalIndex Comparison Record
Phase 3Completed· 58 enrolled
Drug / intervention
Ravulizumabbiological
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04201262
NCT04201262Phase 3Completed

A Phase 3, External Placebo-Controlled, Open-Label, Multicenter Study to Evaluate the Efficacy and Safety of Ravulizumab in Adult Patients With Neuromyelitis Optica Spectrum Disorder (NMOSD)

Alexion Pharmaceuticals, Inc.·interventional·Posted Dec 17, 2019·Updated Oct 14, 2025

In Brief

A Phase 3 clinical trial evaluating Ravulizumab for Neuromyelitis Optica and Neuromyelitis Optica Spectrum Disorder. Completed, enrolled 58 participants across 41 sites in 13 countries.

Detailed Summary

The primary purpose of this study is to evaluate the efficacy and safety of ravulizumab for the treatment of adult participants with NMOSD.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesAustralia, Austria, Canada, Denmark, France, Germany, Italy, Japan, Poland, South Korea, Spain, United Kingdom, United States
Collaborators--

Timeline

Phase 3CompletedFinished
2020202120222023202420252026
First PostedDec 17, 2019
Enrollment StartDec 9, 2019
Primary CompletionMar 15, 2022
Study CompletionOct 31, 2024
TodayJul 2, 2026
Enrollment to primary: 2.3 yearsPosted 6.5 years ago

Interventions

Ravulizumabbiological

Participants will receive a weight-based loading dose of ravulizumab via IV infusion on Day 1, followed by weight-based maintenance doses on Day 15, then once every 8 weeks until end of the Long-Term Extension Period.