Overview A Study to Evaluate the Possible Effects of Taking Mirabegron While Taking a Contraceptive Pill Status: Completed Trial end date: 2009-03-01 Target enrollment: Participant gender: Summary The objective of this study is to determine the effect of multiple doses of mirabegron on the pharmacokinetics of an oral contraceptive. Phase: Phase 1 Details Lead Sponsor: Astellas Pharma IncTreatments: Contraceptive AgentsContraceptives, OralEstradiolEstradiol 17 beta-cypionateEstradiol 3-benzoateEstradiol valerateEthinyl EstradiolLevonorgestrelMirabegronPolyestradiol phosphate