NCT00845000: Acute Effects of Preladenant (SCH 420814) on Dyskinesia and Parkinsonism in Levodopa Treated Participants (P05550) |
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| Completed | 1 | 12 | NA | SCH 420814 10 mg, SCH 420814 100 mg, Placebo, Levodopa, Carbidopa | Merck Sharp & Dohme LLC, Oregon Health and Science University | Parkinson Disease | 04/10 | 05/10 | | |