12. All females must have a negative serum or urine pregnancy test (minimum sensitivity 25 IU/L or equivalent units of beta-human chorionic gonadotropin [β-hCG]) at the Screening Visit and the Baseline Visit. A pregnancy test needs to be performed within 72 hours of the first dose of study drug. Females of childbearing potential must agree to use a highly effective method of contraception for the entire study period and for 120 days after study discontinuation, ie