Study to Assess the Efficacy, Safety, Tolerability, and Pharmacokinetics of BIIB033 in Participants With Relapsing Forms of Multiple Sclerosis When Used Concurrently With Avonex (SYNERGY)
Multiple Sclerosis

About this trial
This is an interventional treatment trial for Multiple Sclerosis
Eligibility Criteria
Key Inclusion Criteria:
- Diagnosis of relapsing remitting MS (RRMS) or onset of secondary progressive MS (SPMS)
- RRMS and SPMS subjects must have evidence of ongoing disease activity within 12 months of enrollment.
- All male and female subjects of childbearing potential must practice effective contraception during the study and be willing and able to continue contraception for at least 6 months after their last dose of study treatment
Key Exclusion Criteria:
- A MS relapse that has occurred within the 90 days prior to Day 1/Baseline and/or the subject has not stabilized from a previous relapse prior to Screening
- Previous history of clinically significant disease.
- Plans to undergo elective major procedures/surgeries at any time during the study.
- Treatment with any investigational MS drugs within 3 weeks or 5 times the half life (whichever is longer) prior to Day 1/Baseline
- RRMS subjects with any history of inadequate response to any approved interferon β preparation
- History of human immunodeficiency virus (HIV), hepatitis C virus antibody, or hepatitis B virus
- History or evidence of drug or alcohol abuse within 2 years prior to randomization
Note: Other protocol defined inclusion/exclusion criteria may apply.
Sites / Locations
- North Central Neurology Assoc PC
- Phoenix Neurological Associates
- Raleigh Neurology Associates PA
- Stanford University Medical Center
- Immunoe International Research Center
- Johns Hopkins Hospital
- Michigan Institute For Neurological Disorders
- Washington University
- Multiple Sclerosis Center of North Eastern New York
- OMRF Multiple Sclerosis Center of Excellence
- Swedish Medical Center
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- London Health Sciences Centre
- Vseobecna Fakultni Nemocnice V Praze
- Fakultni Nemocnice Hradec Kralove
- Nemocnice Jihlava Prispevkova Organizace
- NEUROSPOL Sro
- Fakultni nemocnice v Motole
- Krajska Zdravotni a.s. Nemocnice Teplice Oz
- Hôpital Guillaume Et René Laënnec
- Hôpital Maison Blanche
- Hôpital Roger Salengro
- Hôpital Sud
- Hopital Gabriel Montpied
- CHRU Nancy
- Fondation Rothschild
- Szegedi Tudományegyetem Szent-Györgyi Albert Klinikai Központ
- Uzsoki Utcai Korhaz
- Jahn Ferenc Dél-Pesti Kórház és Rendelöintézet
- Pécsi Tudományegyetem
- Azienda Ospedaliera Universitaria San Martino
- Ospedale San Raffaele S.r.l.
- Azienda Ospedaliera Spedali Civili di Brescia - Presidio Ospedaliero di Montichiari
- Fondazione Istituto San Raffaele G. Giglio di Cefalù
- Azienda Ospedaliero Universitaria Policlinico-Vittorio Emanuele
- Azienda Ospedaliera S. Antonio Abate di Gallarate
- Erasmus MC
- Zuyderland Medisch Centrum
- Centrum Neurologii K. Selmaj
- Wojskowy Instytut Medyczny
- Novo-Med Zielinski i wsp. Sp.J.
- Pomorskie Centrum Traumatologii im. M. Kopernika w Gdansku
- Regionalny Szpital Specjalistyczny im. dr Wladyslawa Bieganskiego
- M.A.- Lek A.M.Maciejowscy Spolka Cywilna
- Gabriela Klodowska-Duda Neuro-Care NZOZ Site Management Organization
- Neurologiczny NZOZ Centrum Leczenia SM Osrodek Badan Klinicznych Dr n. med. Hanka Hertmanowska
- Niepubliczny Zaklad Opieki Zdrowotnej NEURO-KARD Ilkowski i Partnerzy Spolka Partnerska Lekarzy
- SPZOZ Wojewodzki Szpital Specjalistyczny w Rybniku
- EUROMEDIS Sp. z o.o.
- Kaluga Regional Hospital
- Republican Clinical Hospital For Rehabilitation Treatment
- Krasnoyarsk State Medical Academy
- Perm State Medical Academy
- City Center of MS Treatment based on Saint-Petersburg City Clinical Hospital #31
- Regional Clinical Hospital #3
- Clinical Center of Serbia
- Military Medical Academy
- Clinical Center Kragujevac
- General Hospital Uzice
- Hospital Universitari de Bellvitge
- Hospital Universitario Vall d'Hebron
- Hospital Universitario Reina Sofia
- Hospital Clinico San Carlos
- Hospital Universitario Puerta de Hierro Majadahonda
- Hospital de Basurto Osakidetza
- Hospital General Carlos Haya
- Hospital Universitario Virgen Macarena
- Queen's Medical Centre
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Arm 5
Experimental
Experimental
Experimental
Experimental
Placebo Comparator
BIIB033, 3 mg/kg
BIIB033, 10 mg/kg
BIIB033, 30 mg/kg
BIIB033, 100 mg/kg
Placebo
BIIB033 3 mg/kg once every 4 weeks intravenous (IV) infusion up to Week 72. Avonex once-weekly intramuscular (IM) injection up to Week 84.
BIIB033 10 mg/kg once every 4 weeks IV infusion up to Week 72. Avonex once-weekly IM injection up to Week 84.
BIIB033 30 mg/kg once every 4 weeks IV infusion up to Week 72. Avonex once-weekly IM injection up to Week 84.
BIIB033 100 mg/kg once every 4 weeks IV infusion up to Week 72. Avonex once-weekly IM injection up to Week 84.
Placebo once every 4 weeks IV infusion up to Week 72. Avonex once-weekly IM injection up to Week 84.