Overview ALPHA Sitagliptin Add on to Metformin (0431-103) Status: Completed Trial end date: 2009-10-30 Target enrollment: Participant gender: Summary Canadian physicians to experience in real life clinical practice the efficacy and tolerability of adding sitagliptin to their patients who have their glycemic levels inadequately controlled while on metformin Phase: Phase 4 Details Lead Sponsor: Merck Sharp & Dohme Corp.Treatments: MetforminSitagliptin Phosphate