- A male is eligible to enter and participate in the study if he is surgically sterile OR if he either agrees to abstain from sexual intercourse with a female partner or agrees to use a condom/spermicide, in addition to having his female partner use another form of contraception, such as an intrauterine device (IUD), occlusive cap (diaphragm or cervical/vault cap) with spermicide, oral contraceptives, injectable progesterone, subdermal implants, female condom, contraceptive patch, or contraceptive vaginal ring, or has had a tubal ligation or hysterectomy. These criteria must be followed from the time of the first dose of study medication until 14 days after the last dose of study medication.