{"nct_id":"NCT01431833","title":"A PK and Safety Study in Subjects With Hepatic Impairment","status":"COMPLETED","status_verified_date":"2016-05","start_date":"2011-08","start_date_type":null,"primary_completion_date":"2012-05","primary_completion_date_type":"ACTUAL","completion_date":"2012-05","completion_date_type":"ACTUAL","phases":["PHASE1"],"tickers":["MRK"]}