Abstract
Aims/IntroductionWe carried out an observational cohort study to examine the relationship between the efficacy of oral antidiabetic drugs and clinical features in type 2 diabetics.Materials and MethodsWe analyzed the CoDiC® database of the Japan Diabetes Data Management Study Group across 67 institutions in Japan. In a total of 3,698 drug‐naïve patients who were initiated with metformin, dipeptidyl peptidase‐4 inhibitor (DPP‐4i) or sulfonylurea (SU) from 2007 to 2012, we evaluated body mass index (BMI) and hemoglobin A1c (HbA1c). The patients were stratified according to their clinical features, and matched using a propensity score to adjust for baseline factors.ResultsHbA1c was reduced with all drugs, with the largest effect elicited by DPP‐4i and the smallest by SU (P = 0.00). HbA1c increased with SU after 6 months in the patients stratified by an age‐of‐onset of <50 years (P = 0.00). BMI increased with SU in the patients stratified by a BMI of <25 (P = 0.00), and decreased with metformin in the patients with a BMI >25 (P = 0.00). The reduction in HbA1c was larger in patients with HbA1c of ≥8%, compared with that in patients with HbA1c of <8% (P = 0.00). HbA1c during the study period was higher in patients who were added to or swapped with other drug(s), than in patients continued on the original drug (P = 0.00).ConclusionsThe effect on bodyweight and glycemic control differed among metformin, DPP‐4i and SU, and the difference was associated with clinical features.
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