{"nct_id":"NCT01774903","title":"An Efficacy and Safety Study of Transdermal Therapeutic System (TTS)-Fentanyl in Severe Chronic Low Back Pain","status":"COMPLETED","status_verified_date":"2013-02","start_date":"2008-08","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":["JNJ"]}