Overview Safety/Efficacy Study of Levodopa-Carbidopa Intestinal Gel in Parkinson's Subjects Status: Completed Trial end date: 2012-10-01 Target enrollment: Participant gender: Summary Long term safety and efficacy (12 months) of levodopa-carbidopa intestinal gel. Phase: Phase 3 Details Lead Sponsor: AbbVie (prior sponsor, Abbott)Collaborator: Quintiles, Inc.Treatments: CarbidopaCarbidopa, levodopa drug combinationLevodopa