Safety and Efficacy of Eculizumab in Refractory Generalized Myasthenia Gravis (REGAIN Study)
Refractory Generalized Myasthenia Gravis
About this trial
This is an interventional treatment trial for Refractory Generalized Myasthenia Gravis focused on measuring Myasthenia Gravis, Eculizumab, safety, efficacy
Eligibility Criteria
Key Inclusion Criteria:
- Male or female patients ≥18 years old
Diagnosis of MG made by the following tests:
- Positive serologic test for anti-AChR Abs as confirmed at screening, and
One of the following:
- History of abnormal neuromuscular transmission test demonstrated by single-fiber electromyography (SFEMG) or repetitive nerve stimulation, or
- History of positive anticholinesterase test, e.g. edrophonium chloride test, or
- 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:
- Failed treatment with at least two immunosuppressive agents. Or,
- Failed treatment with at least one immunosuppressive agent and require chronic plasma exchange or IVIg
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)
Sites / Locations
- University of Alabama
- University of California San Francisco-Fresno
- University of Southern California
- University of California-Irvine
- University of California Davis Health System
- California Pacific Medical Center
- Stanford University School of Medicine
- Yale New Haven Hospital
- University of Florida Health Science Center
- University of Miami School of Medicine
- University of South Florida
- Georgia Regents University
- Medical Associates of North Georgia
- Southern Illinois University School of Medicine
- Indiana University
- University of Iowa College of Medicine
- University of Kansas Medical Center
- University of Maryland Medical Center
- Johns Hopkins University School Of Medicine
- Massachusetts General Hospital
- Brigham and Women's Hospital
- Lahey Clinic Inc.
- Wayne State University School of Medicine
- Las Vegas Clinic
- Buffalo General Hospital
- Hospital For Special Surgery/New York Presbyterian Hospital Cornell Campus
- Mount Sinai School of Medicine
- University of North Carolina at Chapel Hill
- Carolinas Healthcare System
- Duke University Health System
- Ohio State University Medical Center
- Oregon Health & Science University
- University of Pennsylvania
- Rhode Island Hospital
- Wesley Neurology Clinic
- Vanderbilt Medical Center
- UT Southwestern
- Methodist Neurological Institute
- University of Texas Health Science Center at San Antonio
- University of Vermont Medical Center
- University of Washington
- Hospital Italiano
- Instituto de Investigaciones Neurologicas Raul Carrea, FLENI
- St Vincent's Hospital Melbourne
- Royal Perth Hospital
- UZ Antwerpen
- AZ Sint-Lucas - Campus Sint-Lucas
- UZ Leuven
- Hospital Mãe de Deus
- Faculdade de Medicina do ABC
- Fundação Faculdade Regional de Medicina de São José do Rio Preto
- HUCFF-UFRJ - Hospital Universitário Clementino Fraga Filho - Universidade Federal do Rio de Janeiro
- UNIFESP - Universidade Federal de São Paulo
- University of Alberta Hospital
- Toronto General Hospital
- Montreal Neurological Institute
- Vseobecna fakultni nemocnice v Praze
- Fakultni nemocnice Brno
- Fakultni nemocnice Ostrava
- Århus Universitetshospital
- Rigshospitalet
- Helsingin yliopistollinen keskussairaala
- Neuro NEO Oy
- CHU de Nice Hôpital Pasteur 2
- Groupe Hospitalier Pellegrin - Hôpital Pellegrin
- Hopital Roger Salengro - CHU Lille
- Hopital Neurologique Pierre Wertheimer
- LMU-Campus Innenstadt
- Medizinische Hochschule Hannover
- Navy Hospital of Athens
- General Hospital of Thessaloniki "G. Papanikolaou"
- Jahn Ferenc Del-Pesti Korhaz
- Szegedi Tud.Egyetem Szent-Gyorgyi Albert Klin. Közp.
- Policlinico di Catania
- Fondazione IRCCS Istituto Neurologico Carlo Besta
- Azienda Ospedaliera Universitaria "Federico II"
- Ospedale San Camillo IRCCS
- Azienda Ospedaliero Universitaria Pisana
- Umberto I Pol. di Roma-Università di Roma La Sapienza
- Policlinico Universitario Agostino Gemelli
- Azienda Ospedaliera Sant'Andrea - Università di Roma La Sapienza
- Ospedale Santa Chiara
- Chiba University Hospital
- Kyushu University Hospital
- Sapporo Medical University Hospital
- Hanamaki General Hospitals
- NHO Sendai Medical Center
- NHO Nagasaki Kawatana Medical Center
- Nagasaki University Hospital
- Kinki University Hospital
- Osaka University Hospital
- Toho University Ohashi Medical Center
- Yamaguchi University Hospital
- Severance Hospital, Yonsei University Health System
- Samsung Medical Center
- Korea University Anam Hospital
- Seoul Metropolitan Government Seoul National University
- Academisch Medisch Centrum
- Leiden Universitair Medisch Centrum
- Maastricht University Medical Center
- Hospital Universitari Vall d'Hebron
- Hospital de la Santa Creu i Sant Pau
- Hospital Universitari de Bellvitge
- Hospital Universitario La Paz
- Sahlgrenska Sjukhuset
- Karolinska Universitetssjukhuset - Solna
- Hacettepe University Medical Faculty
- Karadeniz Tecnical Uni. Med. Fac.
- Dokuz Eylul University Medicine Faculty
- Kocaeli University Medical Faculty
- Ondokuz Mayıs University of Medicine
- The Walton Centre
- Queen Elizabeth Hospital
- King's College Hospital
Arms of the Study
Arm 1
Arm 2
Experimental
Placebo Comparator
Eculizumab
Placebo
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 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).