This is an open-label, parallel-group study to evaluate the PK, safety, and tolerability of two different dose regimens of BG00012 over a 24-hour period to adult Chinese, Japanese, and Caucasian healthy volunteers.

The purpose of this healthy volunteer study is to provide pharmacokinetic and safety data for two different dose regimens of BG00012. The study will evaluate BG00012 administered over a 24-hour period.

The study will be conducted in male and female Chinese, Japanese, and Caucasian healthy volunteers.

Inclusion Criteria:

• Must give written informed consent and any authorizations required by local law
• All subjects must practice effective contraception during the study and be willing and able to continue contraception for 30 days after their last dose of study treatment.

Exclusion Criteria:

• History of any clinically significant cardiac, endocrine, hematologic, hepatic, immunologic, metabolic, urologic, pulmonary, neurologic, dermatologic, psychiatric, and renal, or other major disease, as determined by the Investigator.
• History of malignancy (subjects with basal cell carcinoma that has been completely excised prior to study entry remain eligible)
• History of severe allergic or anaphylactic reactions
• Known history of or positive test result for Human Immunodeficiency Virus (HIV)
• Serious infection (e.g., pneumonia, septicemia) within 2 months prior to Screening.
• Female subjects who are pregnant or currently breastfeeding