Overview Efficacy and Safety Study of Elagolix in Women With Endometriosis Status: Completed Trial end date: 2010-09-22 Target enrollment: Participant gender: Summary The purpose of this study is to evaluate elagolix (NBI-56418) compared to placebo for its effects on endometriosis related pelvic pain and its safety. Phase: Phase 2 Details Lead Sponsor: AbbVieAbbVie (prior sponsor, Abbott)