Overview Long Term Study Of Pregabalin In Idiopathic Restless Legs Syndrome Patients Status: Completed Trial end date: 2011-05-01 Target enrollment: Participant gender: Summary This purpose of this study is to investigate the efficacy and tolerability of pregabalin in treating idiopathic RLS patients for up to 12 months. Phase: Phase 3 Details Lead Sponsor: PfizerPfizer's Upjohn has merged with Mylan to form Viatris Inc.Treatments: PramipexolePregabalin