COMPARATIVE STUDY OF SITAGLIPTINAND PIOGLITAZONE AS ADDONTHERAPY OVER PLASMA GLUCOSE LEVEL IN TYPE 2 DIABETES MELLITUS PATIENTS : AN OBSERVATIONAL COHORT STUDY

Background: Type 2 diabetes mellitus (DM) is a progressive chronic disorder and sustained control of plasma glucose is essential to prevent complications. Pioglitazoneofthiazolidinedionesand sitagliptin of Dipeptidyl peptidase-4 inhibitors (DPP4I) have recently been used as add-on therapy to control type 2 DM. The aim of this study was to compare the plasma glucose and glycocelatedHb% level of both the group who had poor glycemic control with Metformin and sulfonylurea. MATERIAL AND METHODS: In this observational cohort study, 100 patients with uncontrolled type 2 DM on 2000 mg/day of Metformin and 4 mg/day of Glimepiride were enrolled. The patients were randomly allocated into two groups with fifty each. One group received two divided doses of pioglitazone (30 mg/day) and the other received two divided doses of sitagliptin (100 mg/day) as the third medication. Plasma glucose fasting and 2 hours after drug and meal along with HbA1c were assessed before and after three months of treatment. Results: Fasting plasma glucose level in the sitagliptin group was higher than the pioglitazone group; however, this difference was not statistically significant (130.30 ± 30.29 versus 124.58 ± 46.84, p=0.212). Significantdifferences were not observed in HbA1c (7.20±0.96 versus 7.43±0.99, p=0.563) and plasma glucose 2 hours after meal (194.56±66.22 versus 198.58±51.5, p=0.946) after treatment withsitagliptin and pioglitazone among the two groups. Mean weight in the sitagliptin group was lower compared to the pioglitazone group after treatment, however, this difference was not statistically significant (p=0.824). Conclusion: Both the molecule as third agent had similar efficacy in glycemic control. Sitagliptin is better choice to add-on therapy in obese overweight patients.