The purpose of this study is to assess effects of B cell depletion on the immune system in patients with relapsing forms of multiple sclerosis (MS) treated with ocrelizumab. This will be done by collecting blood from patients starting treatment with ocrelizumab before the first infusion and before the infusions at 6 and 12 months. The effects on the immune system will be assessed by performing transcriptome profiling of immune cells, measuring serum levels of microRNAs, and analyzing serum autoantibody immune signatures using antigen arrays. In addition, blood will be collected once from a group of healthy individuals to serve as controls.
Study Type
OBSERVATIONAL
Enrollment
161
Blood samples will be collected before initiation of Ocrelizumab treatment and after 6 and 12 months of treatment.
Blood samples will be collected once at enrollment.
Brigham and Women's Hospital
Boston, Massachusetts, United States
Monocyte Transcriptome Profiling
Changes in messenger ribonucleic acid (mRNA) expression
Time frame: 12 months
Antigen microarrays
Changes in serum autoantibody immune signatures
Time frame: 12 months
Serum microRNA profiles
Changes in serum microRNA expression
Time frame: 12 months
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