Safety of Cultured Allogeneic Adult Umbilical Cord Derived Mesenchymal Stem Cell Intravenous Infusion for MS

This study tests stem cells derived from umbilical cord tissue as a potential treatment for Multiple Sclerosis (MS), an autoimmune disease where the immune system attacks the protective coating around nerve fibers. These cells are donated from adult umbilical cords and are not from embryos. **You may be eligible if...** - You have a confirmed diagnosis of Multiple Sclerosis - You are willing and able to sign an informed consent form **You may NOT be eligible if...** - You have an active infection - You have active cancer - You are pregnant - You have had a previous organ transplant - You have serious organ failure or significant lab abnormalities - You are a pre-menopausal woman not using contraception - You have an allergy to sulfur Talk to your doctor to see if this trial is right for you.