{"nct_id":"NCT00845000","title":"Acute Effects of Preladenant (SCH 420814) on Dyskinesia and Parkinsonism in Levodopa Treated Participants (P05550)","status":"COMPLETED","status_verified_date":"2018-10","start_date":"2009-04-21","start_date_type":"ACTUAL","primary_completion_date":"2010-04-30","primary_completion_date_type":"ACTUAL","completion_date":"2010-05-14","completion_date_type":"ACTUAL","phases":["PHASE1"],"tickers":["MRK"]}