Intrathecal Administration of Autologous Mesenchymal Stem Cell-derived Neural Progenitors (MSC-NP) in Progressive Multiple Sclerosis

This is a phase II, double-blinded, placebo-controlled, randomized, cross-over Study designed to determine the efficacy of multiple intrathecal administrations of autologous mesenchymal stem cell-derived neural progenitor cells (MSC-NP) compared to placebo in patients with progressive multiple sclerosis. Efficacy will be measured through assessment of disability outcomes. Study participants will receive six intrathecal injections of culture-expanded autologous MSC-NPs at two month intervals in one year and six lumbar punctures as placebo treatments in a second year.