Some Screening procedures such as a recording of medical history and some clinical laboratory tests (those that are performed at Screening only) may be performed at any time during the Screening Period (Day -30 to Day -1). Other Screening procedures must be performed within the 6 days prior to the first dose of study drug (i.e., from Day -6 to Day -1); these include: physical examination, height, weight, clinical chemistry (including baseline and qualifying sUA), hematology, and urinalysis evaluations, CD4+, CD8+, CD20+, and CD56+ lymphocyte counts, a serum pregnancy test, 12-lead electrocardiogram (ECG), and vital signs assessments. These assessments will constitute the Baseline assessments for the purpose of comparisons with these same assessments post-dose.