{"nct_id":"NCT00975052","title":"A Study of the Effects of Sitagliptin (MK0431) and Metformin on Incretin Hormone Concentrations (0431-050)(COMPLETED)","status":"COMPLETED","status_verified_date":"2015-08","start_date":"2006-01","start_date_type":null,"primary_completion_date":"2006-03","primary_completion_date_type":"ACTUAL","completion_date":"2006-03","completion_date_type":"ACTUAL","phases":["PHASE1"],"tickers":["MRK"]}