{"nct_id":"NCT00443781","title":"Study Of Disc Anaesthesia For The Preoperative Diagnosis Of Chronic Lower Back Pain","status":"COMPLETED","status_verified_date":"2012-03","start_date":"2007-03","start_date_type":null,"primary_completion_date":"2009-06","primary_completion_date_type":"ACTUAL","completion_date":"2009-06","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["MDT"]}