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Profile of saxagliptin in the treatment of type 2 diabetes: focus on Japanese patients

Authors Konya H, Yano Y, Matsutani S, Tsunoda T, Ikawa T, Kusunoki Y, Matsuo T, Miuchi M, Katsuno T, Hamaguchi T, Miyagawa J, Namba M

Received 9 April 2014

Accepted for publication 3 June 2014

Published 11 July 2014 Volume 2014:10 Pages 547—558

DOI https://doi.org/10.2147/TCRM.S46076

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Hiroyuki Konya,1 Yuzo Yano,1 Satoshi Matsutani,1 Taku Tsunoda,2 Takashi Ikawa,2 Yoshiki Kusunoki,2 Toshihiro Matsuo,2 Masayuki Miuchi,2 Tomoyuki Katsuno,3 Tomoya Hamaguchi,4 Jun-ichiro Miyagawa,2 Mitsuyoshi Namba2

1Department of Internal Medicine, Ashiya Municipal Hospital, Ashiya, 2Division of Diabetes, Endocrinology and Metabolism, Department of Internal Medicine, 3Division of Innovative Diabetes Treatment, Hyogo College of Medicine, Nishinomiya, 4Division of Diabetes, Department of Internal Medicine, Itami City Hospital, Itami, Hyogo, Japan

Abstract: Saxagliptin is a selective and potent dipeptidyl peptidase (DPP)-4 inhibitor, approved as an adjunct to diet and exercise to improve glycemic control in type 2 diabetes mellitus (T2DM) in the USA on July 2009, and had been launched globally in over 86 countries by September 2013. In patients with T2DM, once-daily administration of saxagliptin before breakfast achieves sustained inhibition of plasma DPP-4 activity and reduction of postprandial hyperglycemia, including after dinner, associated with an increase in plasma glucagon-like peptide-1 levels. This paper reviews the safety and efficacy of saxagliptin in Japanese patients with T2DM. The clinical development study in Japan supported its usefulness for the disease. Saxagliptin 1, 2.5, and 5 mg led to significant improvements in glycated hemoglobin (HbA1c), and was generally well tolerated. Treatment with saxagliptin 5 mg induced a sustained reduction in HbA1c over 52 weeks. Long-term combination therapy with saxagliptin and other oral hypoglycemic agents also provided sustained glycemic control and was well tolerated for up to 52 weeks. Saxagliptin as add-on to sulfonylureas or glinides has a tendency to increase hypoglycemia, but not with other oral antidiabetic agents, such as α-glucosidase inhibitors, metformin, or thiazolidinediones. The results of clinical trials have confirmed the long-term efficacy and safety of saxagliptin monotherapy as well as its use as add-on combination therapy, and support its usefulness as a therapeutic agent for T2DM. Saxagliptin has less concern for hypoglycemia and weight gain, which often becomes problematic in routine care of T2DM. Meta-analysis of clinical trials in the USA showed no evidence of increased risk of cardiovascular events associated with saxagliptin, suggesting the superior of saxagliptin in terms of safety. Recently, investigators in the SAVOR-TIMI (Saxagliptin Assessment of Vascular Outcomes Recorded in Patients with Diabetes Mellitus-Thrombolysis in Myocardial Infarction) 53 study suggested that DPP-4 inhibition with saxagliptin did not increase or decrease the rate of ischemic events, although the rate of hospitalization for heart failure was increased. Although saxagliptin improves glycemic control, other approaches are necessary to reduce cardiovascular risk in patients with diabetes. Saxagliptin is applicable for various pathological conditions, and is considered to be clinically significant as a new therapeutic option for Japanese patients with T2DM.

Keywords: dipeptidyl peptidase-4, incretin hormones, saxagliptin, type 2 diabetes mellitus, Japan, efficacy, safety, patient acceptability

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Other article by this author:

Effects of combination therapy with mitiglinide and voglibose on postprandial plasma glucose in patients with type 2 diabetes mellitus

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Diabetes, Metabolic Syndrome and Obesity: Targets and Therapy 2013, 6:317-325

Published Date: 2 September 2013

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