7. Female patients who are not pregnant and do not plan to become pregnant during the study. Females of child bearing potential must provide a negative pregnancy test and must be using reliable contraception and must continue to use reliable contraception until study completion. Non-childbearing potential is defined as postmenopausal for at least 2 years or surgical sterilization or hysterectomy at least 3 months before study start. Patients who become pregnant or who have a spouse/significant other that becomes pregnant during the course of this study agree to report pregnancy to the study physician/staff.