[Incretin enhancer: sitagliptin].

Nihon Rinsho

Division of Endocrinology, Metabolism, Hematological Science and Therapeutics, Department of Bio-Signal Analysis, Yamaguchi University Graduate School of Medicine.

Published: May 2011

AI Article Synopsis

  • Incretin-based therapies, like sitagliptin (a DPP-4 inhibitor), have recently become available in Japan for treating type 2 diabetes.
  • After an Oral Glucose Tolerance Test (OGTT), sitagliptin increases active GLP-1 levels about twofold and has proven effective both alone and with other medications in clinical trials.
  • While sitagliptin hasn't increased hypoglycemic events in monotherapy, severe cases have been reported in older Japanese patients on high doses of sulfonylureas, indicating the need for long-term effectiveness studies in this population.

Article Abstract

Recently, incretin-based therapies have become available for patients with type 2 diabetes in Japan. Sitagliptin is one of several DPP-4 inhibitors. After an OGTT, active endogenous GLP-1 concentrations are increased about twofold by sitagliptin. In clinical trials, sitagliptin was shown to be effective in monotherapy and in combination with other oral agents. Hypoglycemic events were not increased in monotherapy. However in Japan, severe hypoglycemic events have been reported especially in older patients with high dose of sulfonylurea. The long-term effectiveness needs to be evaluated in Japanese patients with type 2 diabetes.

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