Biomarker signature panels are important tools for monitoring treatment response and screening for individuals who are unlikely to benefit from certain therapies. To establish a baseline and further characterize gene expression in MS, blood samples from individuals with MS will be collected. A rapid blood test to predict a treatment response would be an innovative diagnostic product that could aid in identifying individuals that may benefit from the targeted therapy. In the long term, such a test could bring significant clinical benefits by enabling individualized treatment to better control the disease, unburdening healthcare costs, and dramatically improving the management of MS.