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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT01997229
Registration number
NCT01997229
Ethics application status
Date submitted
18/11/2013
Date registered
28/11/2013
Titles & IDs
Public title
Safety and Efficacy of Eculizumab in Refractory Generalized Myasthenia Gravis (REGAIN Study)
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Scientific title
A Randomized, Double-Blind, Placebo-Controlled, Multi-Center Study to Evaluate the Safety and Efficacy of Eculizumab in Subjects With Refractory Generalized Myasthenia Gravis (gMG)
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Secondary ID [1]
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2013-003589-15
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Secondary ID [2]
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ECU-MG-301
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Refractory Generalized Myasthenia Gravis
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Condition category
Condition code
Inflammatory and Immune System
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Autoimmune diseases
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Neurological
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Other neurological disorders
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Musculoskeletal
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Other muscular and skeletal disorders
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Treatment: Other - Eculizumab
Treatment: Drugs - Placebo
Experimental: Eculizumab - Biological/Vaccine: Eculizumab; Induction phase: 3 vials of study drug (equivalent to 900 mg of eculizumab) weekly for 4 doses (every 7 days ± 2 days) followed by 4 vials of study drug (equivalent to 1200 mg of eculizumab) 1 week later for the fifth dose (Week 4); Maintenance phase: 4 vials of study drug (equivalent to 1200 mg of eculizumab) every 2 weeks (14 days ± 2 days) from the fifth dose onwards (Week 6 through Week 26).
Placebo comparator: Placebo - Placebo contains the same buffer components without the active ingredient; Induction phase: 3 vials of study drug (placebo) weekly for 4 doses (every 7 days ± 2 days) followed by 4 vials of study drug (placebo) 1 week later for the fifth dose (Week 4); Maintenance phase: 4 vials of study drug (placebo) every 2 weeks (14 days ± 2 days) from the fifth dose onwards (Week 6 through Week 26).
Treatment: Other: Eculizumab
Induction Phase: 900 mg IV weekly X 4 Maintenance Phase: 1200 mg IV every 2 weeks during Weeks 4-26
Treatment: Drugs: Placebo
Placebo
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Intervention code [1]
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Treatment: Other
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Intervention code [2]
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Treatment: Drugs
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Myasthenia Gravis Activities of Daily Living Profile (MG-ADL): Change From Baseline in MG-ADL Total Score at Week 26 by Worst-Rank Analysis of Covariance (ANCOVA)
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Assessment method [1]
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In the Worst-Rank analysis, the 125 total patients were ranked from best outcome (rank/score of 1) to worst outcome (rank/score of 125).
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Timepoint [1]
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End of study (Week 26)
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Eligibility
Key inclusion criteria
Key
* Male or female patients =18 years old
* Diagnosis of MG made by the following tests:
1. Positive serologic test for anti-AChR Abs as confirmed at screening, and
2. One of the following:
1. History of abnormal neuromuscular transmission test demonstrated by single-fiber electromyography (SFEMG) or repetitive nerve stimulation, or
2. History of positive anticholinesterase test, e.g. edrophonium chloride test, or
3. Subject has demonstrated improvement in MG signs on oral cholinesterase inhibitors, as assessed by the treating physician.
* MGFA Clinical Classification Class II to IV at screening.
* MG-ADL total score must be =6 at screening and Randomization (Day 1).
* Subjects who have:
1. Failed treatment with at least two immunosuppressive agents. Or,
2. Failed treatment with at least one immunosuppressive agent and require chronic plasma exchange or IVIg
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Minimum age
18
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
* History of thymoma or other neoplasms of the thymus
* History of thymectomy within 12 months prior to screening
* MGFA Class I or MG crisis at screening (MGFA Class V)
* Use of rituximab within 6 months prior to screening
* Use of IVIg or PE within 4 weeks prior to Randomization (Day 1)
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
The people receiving the treatment/s
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Intervention assignment
Parallel
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Other design features
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Phase
Phase 3
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Data analysis
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
1/12/2013
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Date of last participant enrolment
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Date of last data collection
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Actual
1/06/2016
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Sample size
Target
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Accrual to date
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Final
125
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Recruitment in Australia
Recruitment state(s)
VIC,WA
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Recruitment hospital [1]
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St Vincent's Hospital Melbourne - Fitzroy
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Royal Perth Hospital - Perth
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3065 - Fitzroy
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Recruitment postcode(s) [2]
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6000 - Perth
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Recruitment outside Australia
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Funding & Sponsors
Primary sponsor type
Commercial sector/industry
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Name
Alexion Pharmaceuticals, Inc.
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Address
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Ethics approval
Ethics application status
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Summary
Brief summary
The purpose of this study is to determine if eculizumab is safe and effective for the treatment of refractory generalized Myasthenia Gravis.
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Trial website
https://clinicaltrials.gov/study/NCT01997229
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Trial related presentations / publications
Howard JF Jr, Barohn RJ, Cutter GR, Freimer M, Juel VC, Mozaffar T, Mellion ML, Benatar MG, Farrugia ME, Wang JJ, Malhotra SS, Kissel JT; MG Study Group. A randomized, double-blind, placebo-controlled phase II study of eculizumab in patients with refractory generalized myasthenia gravis. Muscle Nerve. 2013 Jul;48(1):76-84. doi: 10.1002/mus.23839. Epub 2013 Apr 30. Howard JF Jr, Utsugisawa K, Benatar M, Murai H, Barohn RJ, Illa I, Jacob S, Vissing J, Burns TM, Kissel JT, Muppidi S, Nowak RJ, O'Brien F, Wang JJ, Mantegazza R; REGAIN Study Group. Safety and efficacy of eculizumab in anti-acetylcholine receptor antibody-positive refractory generalised myasthenia gravis (REGAIN): a phase 3, randomised, double-blind, placebo-controlled, multicentre study. Lancet Neurol. 2017 Dec;16(12):976-986. doi: 10.1016/S1474-4422(17)30369-1. Epub 2017 Oct 20. Erratum In: Lancet Neurol. 2017 Dec;16(12):954. doi: 10.1016/S1474-4422(17)30377-0. Monteleone JPR, Gao X, Kleijn HJ, Bellanti F, Pelto R. Eculizumab Pharmacokinetics and Pharmacodynamics in Patients With Generalized Myasthenia Gravis. Front Neurol. 2021 Nov 2;12:696385. doi: 10.3389/fneur.2021.696385. eCollection 2021. Siddiqi ZA, Nowak RJ, Mozaffar T, O'Brien F, Yountz M, Patti F; REGAIN Study Group. Eculizumab in refractory generalized myasthenia gravis previously treated with rituximab: subgroup analysis of REGAIN and its extension study. Muscle Nerve. 2021 Dec;64(6):662-669. doi: 10.1002/mus.27422. Epub 2021 Oct 14. Nowak RJ, Muppidi S, Beydoun SR, O'Brien FL, Yountz M, Howard JF Jr. Concomitant Immunosuppressive Therapy Use in Eculizumab-Treated Adults With Generalized Myasthenia Gravis During the REGAIN Open-Label Extension Study. Front Neurol. 2020 Nov 24;11:556104. doi: 10.3389/fneur.2020.556104. eCollection 2020. Mantegazza R, Wolfe GI, Muppidi S, Wiendl H, Fujita KP, O'Brien FL, Booth HDE, Howard JF Jr; REGAIN Study Group. Post-intervention Status in Patients With Refractory Myasthenia Gravis Treated With Eculizumab During REGAIN and Its Open-Label Extension. Neurology. 2021 Jan 26;96(4):e610-e618. doi: 10.1212/WNL.0000000000011207. Epub 2020 Nov 23. Mantegazza R, O'Brien FL, Yountz M, Howard JF Jr; REGAIN study group. Consistent improvement with eculizumab across muscle groups in myasthenia gravis. Ann Clin Transl Neurol. 2020 Aug;7(8):1327-1339. doi: 10.1002/acn3.51121. Epub 2020 Jul 22. Jacob S, Murai H, Utsugisawa K, Nowak RJ, Wiendl H, Fujita KP, O'Brien F, Howard JF Jr. Response to eculizumab in patients with myasthenia gravis recently treated with chronic IVIg: a subgroup analysis of REGAIN and its open-label extension study. Ther Adv Neurol Disord. 2020 May 6;13:1756286420911784. doi: 10.1177/1756286420911784. eCollection 2020. Vissing J, Jacob S, Fujita KP, O'Brien F, Howard JF; REGAIN study group. 'Minimal symptom expression' in patients with acetylcholine receptor antibody-positive refractory generalized myasthenia gravis treated with eculizumab. J Neurol. 2020 Jul;267(7):1991-2001. doi: 10.1007/s00415-020-09770-y. Epub 2020 Mar 18. Andersen H, Mantegazza R, Wang JJ, O'Brien F, Patra K, Howard JF Jr; REGAIN Study Group. Eculizumab improves fatigue in refractory generalized myasthenia gravis. Qual Life Res. 2019 Aug;28(8):2247-2254. doi: 10.1007/s11136-019-02148-2. Epub 2019 Mar 23. Erratum In: Qual Life Res. 2019 Aug;28(8):2255. doi: 10.1007/s11136-019-02204-x.
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Public notes
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Contacts
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Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
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No/undecided IPD sharing reason/comment
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Type
Citations or Other Details
Journal
Howard JF Jr, Utsugisawa K, Benatar M, Murai H, Ba...
[
More Details
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Results are available at
https://clinicaltrials.gov/study/NCT01997229