Overview MK0431 Monotherapy Study in Patients With Type 2 Diabetes Mellitus (0431-040) Status: Completed Trial end date: 2007-03-01 Target enrollment: Participant gender: Summary This is a clinical study to determine the safety and efficacy of an investigational drug in patients with type 2 diabetes mellitus. Phase: Phase 3 Details Lead Sponsor: Merck Sharp & Dohme Corp.Treatments: Sitagliptin Phosphate