Overview Open-label Extension Study of AbobotulinumtoxinA (Dysport®) for the Treatment of Cervical Dystonia Status: Completed Trial end date: 0000-00-00 Target enrollment: Participant gender: Summary The aim of this study is to assess longer term safety and effectiveness of Dysport®. Phase: Phase 3 Details Lead Sponsor: IpsenTreatments: abobotulinumtoxinABotulinum Toxins, Type AincobotulinumtoxinAonabotulinumtoxinA