Clinical trial · Interventional
A Randomized Controlled Trial of Eculizumab in AQP4 Antibody-positive Participants With NMO (PREVENT Study)
A Randomized, Double-Blind, Placebo-Controlled, Multi-Center Trial to Evaluate the Safety and Efficacy of Eculizumab in Patients With Relapsing Neuromyelitis Optica (NMO)
NCT01892345CI-TRIAL-00039226terminatedPhase 3Results postedClinicalTrials.gov clinicaltrialsProvenance
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
The objectives of this time-to-event study were to assess the efficacy and safety of eculizumab as compared with placebo in participants with neuromyelitis optica spectrum disorder (NMOSD) who were anti-aquaporin-4 (AQP4) antibody-positive.
Conditions
Conditions (2)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Neuromyelitis Optica | — | UNRESOLVED | — |
| Neuromyelitis Optica Spectrum Disorder | — | UNRESOLVED | — |
Interventions
Interventions (2)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Eculizumab | Drug | — | UNRESOLVED |
| Placebo | Drug | — | UNRESOLVED |
Design
Arms and outcomes
Arms (2)
- type
- EXPERIMENTAL
- label
- Eculizumab
- description
- Biological/Vaccine: Eculizumab; Induction Period: Participants received eculizumab (900 milligrams \[mg\]) via intravenous (IV) infusion once a week (every 7 ± 2 days) for 4 weeks followed by eculizumab 1200 mg for the fifth dose (Week 4). This was followed by the Maintenance Period: Participants received eculizumab (1200 mg) via IV infusion every 2 weeks (every 14 ± 2 days) from the sixth dose (Week 6) onwards.
- interventionNames
- Drug: Eculizumab
- type
- PLACEBO_COMPARATOR
- label
- Placebo
- description
- Placebo contains the same buffer components without the active ingredient. Induction Period: Participants received matching placebo (900 mg) via IV infusion once a week (every 7 ± 2 days) for 4 weeks, followed by matching placebo (1200 mg) for the fifth dose (Week 4). This was followed by the Maintenance Period: Participants received matching placebo (1200 mg) via IV infusion every 2 weeks (every 14 ± 2 days) from the sixth dose (Week 6) onwards.
- interventionNames
- Drug: Placebo
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
Show eligibility criteria text
Key Inclusion Criteria: 1. Male or female participants ≥ 18 years old. 2. Diagnosis of NMO or NMOSD. 3. AQP4 antibody seropositive. 4. Historical relapse of at least 2 relapses in the last 12 months or 3 relapses in the last 24 months with at least 1 relapse in the 12 months prior to the screening. 5. Expanded Disability Status Scale score ≤ 7. 6. If a participant entered the study receiving immunosuppressive therapy (IST) for relapse prevention, the participant must have been on a stable maintenance dose of IST(s), as defined by the treating physician, prior to Screening and must have remained on that dose for the duration of the study, unless the participant experienced a relapse. 7. Female participants of childbearing potential were to have a negative pregnancy test (serum human chorionic gonadotropin). Participants were required to practice an effective, reliable, and medically approved contraceptive regimen during the study and for up to 5 months following discontinuation of treatment. Key Exclusion Criteria: 1. Use of rituximab within 3 months prior to Screening. 2. Use of mitoxantrone within 3 months prior to Screening. 3. Use of intravenous immunoglobulin within 3 weeks prior to Screening.
References
Publications (6)
- BACKGROUNDPittock SJ, Lennon VA, McKeon A, Mandrekar J, Weinshenker BG, Lucchinetti CF, O'Toole O, Wingerchuk DM. Eculizumab in AQP4-IgG-positive relapsing neuromyelitis optica spectrum disorders: an open-label pilot study. Lancet Neurol. 2013 Jun;12(6):554-62. doi: 10.1016/S1474-4422(13)70076-0. Epub 2013 Apr 26. PMID 23623397
- RESULTPittock SJ, Berthele A, Fujihara K, Kim HJ, Levy M, Palace J, Nakashima I, Terzi M, Totolyan N, Viswanathan S, Wang KC, Pace A, Fujita KP, Armstrong R, Wingerchuk DM. Eculizumab in Aquaporin-4-Positive Neuromyelitis Optica Spectrum Disorder. N Engl J Med. 2019 Aug 15;381(7):614-625. doi: 10.1056/NEJMoa1900866. Epub 2019 May 3. PMID 31050279
- DERIVEDSingh P, Gao X, Kleijn HJ, Bellanti F, Pelto R. Eculizumab Pharmacokinetics and Pharmacodynamics in Patients With Neuromyelitis Optica Spectrum Disorder. Front Neurol. 2021 Nov 3;12:696387. doi: 10.3389/fneur.2021.696387. eCollection 2021. PMID 34803867
- DERIVEDPittock SJ, Fujihara K, Palace J, Berthele A, Kim HJ, Oreja-Guevara C, Nakashima I, Levy M, Shang S, Yountz M, Miller L, Armstrong R, Wingerchuk DM; PREVENT Study Group. Eculizumab monotherapy for NMOSD: Data from PREVENT and its open-label extension. Mult Scler. 2022 Mar;28(3):480-486. doi: 10.1177/13524585211038291. Epub 2021 Sep 9. PMID 34498507
- DERIVEDKim HJ, Nakashima I, Viswanathan S, Wang KC, Shang S, Miller L, Yountz M, Wingerchuk DM, Pittock SJ, Levy M, Berthele A, Totolyan N, Palace J, Barnett MH, Fujihara K; PREVENT Study Group. Eculizumab in Asian patients with anti-aquaporin-IgG-positive neuromyelitis optica spectrum disorder: A subgroup analysis from the randomized phase 3 PREVENT trial and its open-label extension. Mult Scler Relat Disord. 2021 May;50:102849. doi: 10.1016/j.msard.2021.102849. Epub 2021 Feb 20. PMID 33676197
- DERIVEDPalace J, Wingerchuk DM, Fujihara K, Berthele A, Oreja-Guevara C, Kim HJ, Nakashima I, Levy M, Terzi M, Totolyan N, Viswanathan S, Wang KC, Pace A, Yountz M, Miller L, Armstrong R, Pittock S; PREVENT Study Group. Benefits of eculizumab in AQP4+ neuromyelitis optica spectrum disorder: Subgroup analyses of the randomized controlled phase 3 PREVENT trial. Mult Scler Relat Disord. 2021 Jan;47:102641. doi: 10.1016/j.msard.2020.102641. Epub 2020 Nov 26.