- Women of nonchildbearing potential, or men, aged 18 to 55 years inclusive on study day 1. Women of nonchildbearing potential may be included if they are either surgically sterile (hysterectomy and/or oophorectomy) or postmenopausal for â‰¥1 year (with a follicle-stimulating hormone [FSH] level of â‰¥38 mIU/mL). Women who are surgically sterile must provide documentation of the procedure by an operative report or ultrasound scan. Sexually active men must agree to use a medically acceptable form of contraception during the study and continue it for 12 weeks after test article administration.