Overview An Investigational Drug Study in Patients With Type 2 Diabetes Mellitus (MK0431-023) Status: Completed Trial end date: 2006-04-28 Target enrollment: Participant gender: Summary The purpose of this study is to determine the safety and effectiveness of an investigational drug in patients with Type 2 Diabetes Mellitus. Phase: Phase 3 Details Lead Sponsor: Merck Sharp & Dohme Corp.Treatments: PioglitazoneSitagliptin Phosphate