An Extension Study to Evaluate the Efficacy and Safety of Elagolix in Premenopausal Women With Heavy Menstrual Bleeding Associated With Uterine Fibroids

This is an extension study for women who have already received six months of treatment in the phase III clinical trial M12-815 (NCT02654054) or M12-817 (NCT02691494), and will evaluate the long-term efficacy and safety of elagolix administered alone and in combination with estradiol/norethindrone acetate for an additional six months in the treatment of heavy menstrual bleeding associated with uterine fibroids.