3. If female, was post-menopausal for at least one year; or had undergone a hysterectomy; or a tubal ligation; or if of childbearing potential, had negative urine pregnancy test results and agreed to use an approved method of birth control throughout the study (ie, oral/systemic contraceptives, intrauterine device [IUD], or spermicide in combination with a barrier method of contraception), or was abstinent, or was in a monogamous relationship with a partner who had had a vasectomy.