{"nct_id":"NCT01227265","title":"Placebo Controlled Study of Preladenant in Participants With Moderate to Severe Parkinson's Disease (P07037)","status":"COMPLETED","status_verified_date":"2018-08","start_date":"2010-11-19","start_date_type":"ACTUAL","primary_completion_date":"2013-04-04","primary_completion_date_type":"ACTUAL","completion_date":"2013-04-16","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["MRK"]}