Overview Study Evaluating Levonorgestrel/Ethinyl Estradiol (LNG/EE) in PMS Status: Completed Trial end date: 2006-08-01 Target enrollment: Participant gender: Summary The purpose of this study is to determine whether LNG/EE is effective in the treatment of menstrual cycle related symptoms. Phase: Phase 3 Details Lead Sponsor: Wyeth is now a wholly owned subsidiary of PfizerTreatments: EstradiolEstradiol 17 beta-cypionateEstradiol 3-benzoateEstradiol valerateEthinyl EstradiolLevonorgestrelPolyestradiol phosphate