{"nct_id":"NCT00601978","title":"Carbidopa/Levodopa Versus Carbidopa/Levodopa/Entacapone on Markers of Event Related Potentials (ERPs) in Patients With Idiopathic Parkinson's Disease (PD) and End-of-dose Wearing Off","status":"WITHDRAWN","status_verified_date":"2012-04","start_date":"2008-08","start_date_type":null,"primary_completion_date":"2009-11","primary_completion_date_type":"ACTUAL","completion_date":"2009-11","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["NVS"]}