Dexpramipexole and Cimetidine Drug Drug Interaction (DDI)

Inclusion Criteria: * Subjects who, in the opinion of the Investigator, are healthy as determined by medical history, physical examination, and 12 lead ECG * Adult males/females aged 18 to 55 years inclusive * Male and female subjects of childbearing potential must practice effective contraception during the study and up to 90 days after their last dose. Exclusion Criteria: * History of malignant disease, including solid tumors and hematologic malignancies. * History of clinically significant endocrine, hematologic, hepatic, immunologic, metabolic, urologic, pulmonary, neurologic, dermatologic, psychiatric, and renal, or other major diseases, as determined by the Investigator. * Treatment with prescription medication and/or over-the-counter products and herbal-containing and/or alternative health preparations and procedures. * Surgery within 90 days prior to check-in.