- Female subjects were surgically sterile, at least two years postmenopausal, or if sexually active, had a partner who had been vasectomized for at least 6 months, or agreed to utilize one of the following forms of contraception: barrier (condom with spermicide or diaphragm with spermicide), IUD, or hormonal (oral, implant, transdermal patch, or injection) for the following specified times.