Overview Sitagliptin Metformin/PPARg Agonist Combination Therapy Add-on (0431-052) Status: Completed Trial end date: 2008-06-11 Target enrollment: Participant gender: Summary A clinical study to determine the safety and efficacy of sitagliptin in patients with Type 2 Diabetes Mellitus who have inadequate glycemic control on metformin/peroxisome proliferator-activated receptor gamma (PPARg) agonist combination therapy. Phase: Phase 3 Details Lead Sponsor: Merck Sharp & Dohme Corp.Treatments: GlipizideMetforminRosiglitazoneSitagliptin Phosphate