The MRI analysis will be performed fully blinded, as are all phase I, II, III and IV trials calculated at the Buffalo Neuroimaging Analysis Center (BNAC), Buffalo, NY. BNAC has been involved as an centralized MRI reading center in many MS clinical trials that included over 500 sites around the world in 55 countries The detailed procedures of how the MRI DICOM files are blinded and how the workload is distributed are part of our internal standard operating procedures (SOPs) that have been accepted as appropriate following standard audits by government and industry agencies.