Economic Impact of Combining Metformin with Dipeptidyl Peptidase-4 Inhibitors in Diabetic Patients with Renal Impairment in Spanish Patients

BackgroundTo evaluate resource use and health costs due to the combination of metformin and dipeptidyl peptidase-4 (DPP-4) inhibitors in patients with diabetes and renal impairment in routine clinical practice.MethodsAn observational, retrospective study was performed. Patients aged ≥30 years treate...

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Bibliographic Details
Main Authors: Antoni Sicras-Mainar, Ruth Navarro-Artieda
Format: Article
Language:English
Published: Korean Diabetes Association 2015-02-01
Series:Diabetes & Metabolism Journal
Subjects:
Online Access:http://e-dmj.org/Synapse/Data/PDFData/2004DMJ/dmj-39-74.pdf
Description
Summary:BackgroundTo evaluate resource use and health costs due to the combination of metformin and dipeptidyl peptidase-4 (DPP-4) inhibitors in patients with diabetes and renal impairment in routine clinical practice.MethodsAn observational, retrospective study was performed. Patients aged ≥30 years treated with metformin who initiated a second oral antidiabetic treatment in 2009 to 2010 were included. Two groups of patients were analysed: metformin+DPP-4 inhibitors and other oral antidiabetics. The main measures were: compliance, persistence, metabolic control (glycosylated hemoglobin< 7%) and complications (hypoglycemia, cardiovascular events) and total costs. Patients were followed up for 2 years.ResultsWe included 395 patients, mean age 70.2 years, 56.5% male: 135 patients received metformin+DPP-4 inhibitors and 260 patients received metformin+other oral antidiabetics. Patients receiving DPP-4 inhibitors showed better compliance (66.0% vs. 60.1%), persistence (57.6% vs. 50.0%), and metabolic control (63.9% vs. 57.3%), respectively, compared with those receiving other oral antidiabetics (P<0.05), and also had a lower rate of hypoglycemia (20.0% vs. 47.7%) and lower total costs (€ 2,486 vs. € 3,002), P=0.001.ConclusionDespite the limitations of the study, patients with renal impairment treated with DPP-4 inhibitors had better metabolic control, lower rates (association) of hypoglycaemia, and lower health costs for the Spanish national health system.
ISSN:2233-6079
2233-6087