Overview Study Assessing Efficacy and Safety of AKST4290 in Subjects With Parkinson's Disease on Stable Dopaminergic Treatment Status: Completed Trial end date: 2021-04-08 Target enrollment: Participant gender: Summary This study will evaluate the efficacy and safety of AKST4290 in subjects with Parkinson's Disease who are currently on stable dopaminergic treatment. Phase: Phase 2 Details Lead Sponsor: Alkahest, Inc.