A Study to Evaluate the Effects of Asoprisnil(J867) in Women With Uterine Fibroids Who Are Scheduled for a Hysterectomy

Inclusion Criteria: * Premenopausal women, at least 18 years of age * Diagnosis of uterine fibroid(s), confirmed by ultrasound * History of menstrual cycles between 17 and 42 days * Otherwise in good health * Scheduled for a hysterectomy at the end of the treatment period * Negative pregnancy test * Agrees to double barrier method of contraception * Pap test with no evidence of malignancy or pre-malignant changes * Endometrial biopsy with no significant histological disorder Exclusion Criteria: * Less than 3 months after having a baby or breast-feeding * Any abnormal lab or procedure result the study-doctor considers important * Severe reaction(s) to or are currently using any hormone therapy * History of cancer or alcohol or drug abuse * Diagnosis of Polycystic Ovary Syndrome * History of prolactinoma * Current use of Intrauterine Device * Significant gynecological disorder * Uterine size \> 32 weeks gestation * Current diagnosis of endometriosis * Uterine artery embolization within 6 months