Overview Thorough QT Study to Evaluate Ampreloxetine in Healthy Subjects Status: Completed Trial end date: 2021-03-26 Target enrollment: Participant gender: Summary A double-blind study to characterize the effect of ampreloxetine on cardiac repolarization in healthy subjects. Phase: Phase 1 Details Lead Sponsor: Theravance BiopharmaTreatments: MoxifloxacinNorgestimate, ethinyl estradiol drug combination