- Women of childbearing potential, unless surgically sterile or at least 1 year post-menopausal, must use two effective methods of avoiding pregnancy (including oral, transdermal, or implanted contraceptives, intrauterine device, female condom, spermicide, diaphragm, cervical cap, abstinence, contraceptive foam, or use of a condom by the sexual partner or sterile sexual partner) from screening through Study Day 0, and must agree to continue using such precautions through Study Day 150. Cessation of birth control after this point should be discussed with a responsible physician. Men, unless surgically sterile, must likewise use an effective method of birth control (condom with spermicide) and must agree to continue using such precautions from screening through Study Day 150;