Overview Effect of NT 201 (Botulinum Neurotoxin Type A Free of Complexing Proteins) on Sleep-related Breathing Disorders Status: Withdrawn Trial end date: 2010-10-01 Target enrollment: Participant gender: Summary This proof-of-concept study is to assess the potential benefit of botulinum toxin for patients with sleep-related breathing disorders. Phase: Phase 2 Details Lead Sponsor: Merz Pharmaceuticals GmbHTreatments: abobotulinumtoxinABotulinum ToxinsBotulinum Toxins, Type AincobotulinumtoxinAonabotulinumtoxinA