{"nct_id":"NCT00830076","title":"A Study of the Effects of Co-Administration of Sitagliptin (MK-0431) and Metformin on Incretin Hormone Concentrations (MK-0431-110)","status":"COMPLETED","status_verified_date":"2017-04","start_date":"2008-12-02","start_date_type":"ACTUAL","primary_completion_date":"2009-04-30","primary_completion_date_type":"ACTUAL","completion_date":"2009-05-14","completion_date_type":"ACTUAL","phases":["PHASE1"],"tickers":["MRK"]}