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Effectiveness and tolerability of second-line treatment with vildagliptin versus other oral drugs for type 2 diabetes in a real-world setting in the Middle East: results from the EDGE study

Authors Saab C, Al Saber F, Haddad J, Jallo MK, Steitieh H, Bader G, Ibrahim M

Received 3 September 2014

Accepted for publication 10 November 2014

Published 24 February 2015 Volume 2015:11 Pages 149—155

DOI https://doi.org/10.2147/VHRM.S73703

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2

Editor who approved publication: Professor Daniel Duprez


Charles Saab,1 Feryal A Al-Saber,2 Jihad Haddad,3 Mahir Khalil Jallo,4 Habib Steitieh,5 Giovanni Bader,6 Mohamed Ibrahim,7

1Department of Endocrinology and Metabolism, Sacre Coeur University Hospital, Baabda, Lebanon; 2Endocrine Department, Bahrain Defence Force Hospital, Rifaa, Bahrain; 3Division of Endocrinology Department of Internal Medicine, Prince Hamaza Hospital, Amman, Jordan; 4Department of Internal Medicine, Gulf Medical University, Ajman, United Arab Emirates; 5New Mowasat Hospital, Safat, Kuwait; 6Novartis Pharma AG, Basel, Switzerland; 7Novartis Pharma Services AG, Dubai, United Arab Emirates

Background: Type 2 diabetes mellitus (T2DM) is a chronic progressive disease that requires treatment intensification with antihyperglycemic agents due to progressive deterioration of β-cell function. A large observational study of 45,868 patients with T2DM across 27 countries (EDGE) assessed the effectiveness and safety of vildagliptin as add-on to other oral antidiabetic drugs (OADs) versus other comparator OAD combinations. Here, we present results from the Middle East countries (Bahrain, Jordan, Kuwait, Lebanon, Oman, Palestine, and the United Arab Emirates).
Methods: Patients inadequately controlled with OAD monotherapy were eligible after the add-on treatment was chosen by the physician based on clinical judgment and patient need. Patients were assigned to either vildagliptin or comparator OADs (sulfonylureas, thiazolidinediones, glinides, α-glucosidase inhibitors, or metformin, except incretin-based therapies) based on the add-on therapy. The primary endpoint was the proportion of patients achieving a glycated hemoglobin (HbA1c) reduction of >0.3% without peripheral edema, hypoglycemia, discontinuation due to a gastrointestinal event, or weight gain ≥5%. One of the secondary endpoints was the proportion of patients achieving HbA1c <7% without hypoglycemia or weight gain. Change in HbA1c from baseline to study endpoint and safety were also assessed.
Results: Of the 4,780 patients enrolled in the Middle East, 2,513 received vildagliptin and 2,267 received other OADs. Overall, the mean (± standard deviation) age at baseline was 52.1±10.2 years, mean HbA1c was 8.5%±1.3%, and mean T2DM duration was 4.2±4.0 years. The proportion of patients achieving the primary (76.1% versus 61.6%, P<0.0001) and secondary (54.8% versus 29.9%, P<0.0001) endpoints was higher with vildagliptin than with the comparator OADs. The unadjusted odds ratios for the primary and secondary endpoints were 1.98 (95% confidence interval 1.75–2.25) and 2.8 (95% confidence interval 2.5–3.2), respectively, in favor of vildagliptin. Vildagliptin achieved a numerically greater reduction in HbA1c (1.7%) from baseline versus comparator OADs (1.4%). The overall incidence of adverse events was comparable between studied cohorts.
Conclusion: In real life, treatment with vildagliptin was associated with a higher proportion of patients with T2DM achieving better glycemic control without tolerability issues in the Middle East.

Keywords: dipeptidyl peptidase-4, Middle East, oral antidiabetic drugs, real world, type 2 diabetes mellitus, vildagliptin


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