{"nct_id":"NCT00537771","title":"Liver Safety Under Upfront Arimidex vs Tamoxifen","status":"COMPLETED","status_verified_date":"2012-12","start_date":"2007-09","start_date_type":null,"primary_completion_date":"2011-12","primary_completion_date_type":"ACTUAL","completion_date":"2011-12","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["AZN"]}