- Women of childbearing potential (i.e. women who have not undergone hysterectomy or bilateral oophorectomy, or no medically documented ovarian failure, and are ≤ 50 years of age) must agree to 1 medically approved contraceptive measures and have their partners agree to an additional barrier method of contraception for the duration of the study and for 4 weeks after the last administration of the study drug. Women of childbearing potential must not rely on hormone-containing contraceptive as a form of birth control during the study but may use. An intrauterine device, female barrier methods with cervical cap or diaphragm with spermicidal agent, tubal sterilization, or vasectomy in male partners.