The present invention features methods for treating multiple sclerosis by administering an alpha-fetoprotein polypeptide (or a biologically active fragment, derivative, or analog thereof) and one or more immunomodulatory agents to a patient in need thereof. Also disclosed are compositions and kits that contain an alpha-fetoprotein polypeptide (or a biologically active fragment, derivative, or analog thereof) and one or more immunomodulatory agents.