{"nct_id":"NCT00210912","title":"A Study of the Effectiveness and Safety of Topiramate Versus Placebo for Preventing Chronic Migraine Headaches","status":"COMPLETED","status_verified_date":"2010-04","start_date":"2003-09","start_date_type":null,"primary_completion_date":null,"primary_completion_date_type":null,"completion_date":"2005-04","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["JNJ"]}