A Study to Evaluate Efficacy, Safety, and Tolerability of EID of Natalizumab (BG00002) in Participants With RRMS Switching From Treatment With Natalizumab SID in Relation to Continued SID Treatment- Followed by Extension Study Comprising SC and IV Natalizumab Administration
Multiple Sclerosis, Relapsing-Remitting
About this trial
This is an interventional treatment trial for Multiple Sclerosis, Relapsing-Remitting
Eligibility Criteria
Key Inclusion Criteria:
For Part 1:
- Ability of the participant to understand the purpose and risks of the study and provide signed and dated informed consent and authorization to use confidential health information in accordance with national and local participant privacy regulations.
- Diagnosis of relapsing remitting multiple sclerosis (RRMS) according to the McDonald criteria [Thompson 2018].
- Treatment with natalizumab as disease-modifying monotherapy for RRMS that is consistent with the approved dosing for a minimum of 12 months prior to randomization. The participant must have received at least 11 doses of natalizumab in the 12 months prior to randomization with no missed doses in the 3 months prior to randomization.
- Expanded Disability Status Scale (EDSS) score <=5.5 at screening.
- No relapses in the last 12 months prior to randomization, as determined by the enrolling Investigator.
For Part 2:
- Ability of the participants to understand the purpose and risks of the study and provide signed and dated informed consent for Part 2 and authorization to use confidential health information in accordance with national and local participant privacy regulations.
- Completed Part 1 Week 72 visit while remaining on their randomized treatment assignment of SID or EID.
Key Exclusion Criteria:
For Part 1:
- Primary and secondary progressive multiple sclerosis (MS).
- MRI positive for Gd-enhancing lesions at screening.
- Participants for whom MRI is contraindicated (e.g., have a contraindicated pacemaker or other contraindicated implanted metal device, have suffered, or are at risk for, side effects from Gd, or have claustrophobia that cannot be medically managed).
- History of any clinically significant (as determined by the Investigator) cardiac, endocrinologic, hematologic, hepatic, immunologic, metabolic (including diabetes), urologic, pulmonary, neurologic (except for RRMS), dermatologic, psychiatric, renal, or other major disease that would preclude participation in a clinical study, in the opinion of the Investigator.
- Presence of anti-natalizumab antibodies at screening.
For Part 2:
- Participants treated with natalizumab EID was reverted to natalizumab SID by choice or as rescue treatment in Part 1.
- Participant received treatment with any MS disease-modifying therapy other than natalizumab in Part 1 or in the period between Part 1 and Part 2.
- History of human immunodeficiency virus or history of other immunodeficient conditions.
- Current enrollment or a plan to enroll in any interventional clinical study in which an investigational treatment or approved therapy for investigational use is administered within 30 days (or 5 half-lives of the agent, whichever is longer) prior to the Baseline Visit or at any time during this study.
- Inability to comply with study requirements.
- Other unspecified reasons that, in the opinion of the Investigator or Biogen, make the participant unsuitable for enrollment.
The inclusion and exclusion criteria for new participants who did not participate in Part 1 of the study are the same as those for participants who did participate in Part 1.
NOTE: Other protocol defined Inclusion/Exclusion criteria may apply
Sites / Locations
- North Central Neurology Associates, P.C.
- Alabama Neurology Associates
- UCI MIND
- UC San Diego Movement Disorder Center
- MS Center of California
- Stanford Hospital and Clinics
- University of Colorado Hospital Anschutz Outpatient Pavillion
- Advanced Neurosciences Research
- Yale University
- Georgetown University Hospital-Medstar
- University of Miami Miller School of Medicine
- Infinity Clinical Research, LLC
- University of South Florida
- Shepherd Center, Inc.
- Atlanta Neuroscience Institute
- NorthShore University HealthSystem
- Northwestern University
- College Park Family Care Center
- Lahey Clinic Inc. - PARENT ACCOUNT
- Neurology Center of New England P.C.
- Beth Israel Deaconess Medical Center, Inc.
- Dragonfly Research, LLC
- South Shore Neurology Associates
- Michigan Institute for Neurological Disorders
- Michigan State University
- Memorial Healthcare
- Minneapolis Clinic of Neurology
- Washington University, School of Medicine
- Cleveland Clinic Lou Ruvo Center for Brain Health
- RWJ Barnabas Health
- Holy Name Medical Center
- NYU Langone Clinical Cancer Center
- Mount Sinai Medical Center
- Columbia University Hervert Irving Comprehensive Cancer Center
- Island Neurological Associates, P.C.
- Raleigh Neurology Associates
- Wake Forest University Health Sciences
- University of Cincinnati
- The Cleveland Clinic Foundation
- OhioHealth Riverside Methodist Hospital
- Dayton Center for Neurological Disorders
- Providence Neurological Specialties
- Thomas Jefferson University
- Magee-Womens Hospital of UPMC
- Sibyl Wray, MD Neurology, PC
- Vanderbilt University Medical Center
- Central Texas Neurology Consultants
- Rocky Mountain MS Research Group LLC
- University Of Virginia
- Multiple Sclerosis Center of Greater Washington
- Virginia Mason Medical Center
- Wheaton Franciscan Healthcare
- Royal North Shore Hospital
- Brain and Mind Centre
- Lyell McEwin Hospital
- Box Hill Hospital
- The Alfred Hospital
- Royal Melbourne Hospital
- Cliniques Universitaires de Bruxelles Hopital Erasme
- Cliniques Universitaires Saint-Luc
- UZA
- CHU de Tivoli
- St. Michael's Hospital
- Clinique Neuro-Outaouais
- Recherche SEPMUS
- CHUM Centre de Recherche
- Montreal Neurological Institute Clinical Research Unit
- Groupe Hospitalier Pellegrin - Hôpital Pellegrin
- CHU CAEN - Hôpital de la Côte de Nacre
- Hopital Roger Salengro - CHU Lille
- CHU Nice - Hôpital Pasteur
- CHU Nantes - Hopital Nord Laënnec
- CHU Strasbourg - Nouvel Hôpital Civil
- Neurologie im Alphamed
- Charité - Campus Charité Mitte
- Katholisches Klinikum Bochum gGmbH
- Neuro Centrum Science GmbH
- Universitaetsklinikum Essen
- Universitaetsklinikum Freiburg
- Universitaetsklinikum Giessen und Marburg GmbH Standort Marburg
- Universitaetsklinikum Muenster
- Klinikum rechts der Isar der TU Muenchen
- Synconcept GmbH - Neuro MVZ
- Chaim Sheba Medical Center
- Azienda Ospedaliero Universitaria Policlinico "Gaspare Rodolico - San Marco" (Presidio G. Rodolico)
- Fondazione Istituto G.Giglio di Cefalù
- Fondazione IRCCS Istituto Neurologico Carlo Besta
- Azienda Ospedaliera Universitaria- Università degli Studi della Campania "Luigi Vanvitelli"
- I.R.C.C.S. Neuromed-Istituto Neurologico Mediterraneo
- Amphia Ziekenhuis, Molengracht
- St. Antonius Ziekenhuis
- Zuyderland Medisch Centrum - Sittard-Geleen
- Hospital Universitari Arnau de Vilanova
- Hospital Universitario Virgen de la Arrixaca
- Hospital Universitario Ramon y Cajal
- Hospital Regional Universitario de Malaga
- Hospital Universitario Virgen Macarena
- King's College Hospital
- The National Hospital for Neurology & Neurosurgery
- Walton Centre for Neurology & Neurosurgery.
- Queen Elizabeth University Hospital Campus
- Newcastle University- Clinical Ageing Research Unit
- Charing Cross Hospital
- Nottingham University Hospital, Queen's Medical Centre
- Salford Care Organisation
- Royal Hallamshire Hospital
- Morriston Hospital
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Experimental
Experimental
Experimental
Experimental
Part 1: Standard Interval Dosing (SID) IV
Part 1: Extended Interval Dosing (EID) IV
Part 2: EID SC, then EID IV
Part 2: EID IV, then EID SC
Participants will receive natalizumab 300 milligram (mg) intravenous (IV) infusion every 4 weeks (-2/+5 days) up to Week 72.
Participants will receive natalizumab 300 mg IV infusion every 6 weeks (-2/+5 days) up to Week 72.
Participants will receive natalizumab 300 mg SC injection every 6 weeks from Week 108 through Week 126 followed by natalizumab 300 mg IV infusion every 6 weeks from Week 132 through Week 150.
Participants will receive natalizumab 300 mg IV infusion every 6 weeks from Week 108 through Week 126 followed by natalizumab 300 mg SC injection every 6 weeks from Week 132 through Week 150.