{"nct_id":"NCT00558129","title":"Effects of X-STOP® Versus Laminectomy Study","status":"WITHDRAWN","status_verified_date":"2012-01","start_date":"2007-11","start_date_type":null,"primary_completion_date":null,"primary_completion_date_type":null,"completion_date":"2011-11","completion_date_type":"ESTIMATED","phases":["PHASE4"],"tickers":["MDT"]}