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Comparison of extended release GLP-1 receptor agonist therapy versus sitagliptin in the management of type 2 diabetes

Authors Stolar M, Grimm M, Chen S

Received 22 May 2013

Accepted for publication 24 July 2013

Published 22 November 2013 Volume 2013:6 Pages 435—444

DOI https://doi.org/10.2147/DMSO.S48837

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3


Mark W Stolar,1 Michael Grimm,2 Steve Chen2

1Clinical Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA; 2Amylin Pharmaceuticals, LLC, San Diego, CA, USA

Abstract: Exenatide once weekly (EQW), the first glucose-lowering agent for type 2 diabetes that is dosed one time per week, contains exenatide encapsulated in microspheres of a dissolvable matrix, which release active agent slowly and continuously into the circulation following subcutaneous injection. In two direct head-to-head comparisons, EQW resulted in better long-term glucose control, greater reductions in fasting plasma glucose, and more significant weight loss than sitagliptin. In other trials, glucose-lowering effects of EQW compared favorably with those of metformin, pioglitazone, and basal insulin. Patients on EQW exhibited a higher incidence of nausea than those on sitagliptin, although gastrointestinal adverse events occurred primarily during the first 6–8 weeks of therapy and declined thereafter. EQW was also associated with a lower incidence of nausea than two other glucagon-like peptide-1 receptor agonists, exenatide twice daily and liraglutide. Mild hypoglycemic episodes were uncommon with EQW, although risk of hypoglycemia increased in combination with sulfonylureas. When choosing between EQW and a dipeptidyl peptidase-4 (DPP-4) inhibitor, such as sitagliptin, clinicians and patients should consider the differences between the two medications in terms of glucose control (EQW superior to DPP-4 inhibitors), weight control (EQW superior to DPP-4 inhibitors), gastrointestinal tolerability during treatment initiation (EQW inferior to DPP-4 inhibitors), and mode of administration (once-weekly subcutaneous administration versus once-daily oral administration).

Keywords: exenatide, glucagon-like peptide 1, dipeptidyl peptidase-4 inhibitors

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