The purpose of this study is to evaluate the effects of BIIB033 versus placebo on disability improvement over 72 weeks and to evaluate the effects of BIIB033 versus placebo on additional measures of disability improvement.
Visit ClinicalTrials.gov for more information.
Study Coordinators and Research Nurses cannot give medical advice over the phone. Telephone numbers and email addresses are provided for obtaining additional information on specific research studies only. If you have specific questions which require clinical expertise, please call your primary care physician.