{"nct_id":"NCT00875394","title":"Study to Assess the Efficacy and Safety of Sitagliptin Added to the Regimen of Patients With Type 2 Diabetes Mellitus With Inadequate Glycemic Control on Metformin (0431-189)","status":"COMPLETED","status_verified_date":"2017-04","start_date":"2007-02-01","start_date_type":"ACTUAL","primary_completion_date":"2008-06-27","primary_completion_date_type":"ACTUAL","completion_date":"2008-06-27","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["MRK"]}