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Diabetes Obes Metab. 2012 Mar;14(3):271-8. doi: 10.1111/j.1463-1326.2011.01525.x. Epub 2011 Dec 22.

GPR40-induced insulin secretion by the novel agonist TAK-875: first clinical findings in patients with type 2 diabetes.

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  • 1Pharmaceutical Development Division, Takeda Pharmaceutical Company Limited, Osaka, Japan. takahiro.araki@tgrd.com

Abstract

AIM:

Free fatty acids act as signalling molecules for modulating insulin secretion, and their insulinotropic effects are glucose-dependent and mediated through G protein-coupled receptor 40 (GPR40). This mechanism is a potential target for new treatments for managing diabetes. In this study, we present the first clinical data for TAK-875, a novel highly selective, orally bioavailable GPR40 agonist, in Japanese patients with type 2 diabetes insufficiently controlled by diet or exercise therapy.

METHODS:

This was an exploratory phase II, multicentre, randomized, double-blind, parallel group study comparing the efficacy and tolerability of TAK-875 100 and 400 mg, and placebo, all administered once daily for 2 weeks.

RESULTS:

After 2 weeks of treatment, TAK-875 produced marked glucose lowering effects in a 75 g oral glucose tolerance test (OGTT) as evidenced by mean ± SE intergroup differences in plasma glucose AUC(0-3 h) of -12.98 ± 1.48 (p < 0.0001) and -8.12 ± 1.49 mmol·h/l (p < 0.0001), for TAK-875 400 mg vs. placebo and TAK-875 100 mg vs. placebo, respectively, and 2 h plasma glucose [-4.95 ± 0.71 (p < 0.0001) and -3.21 ± 0.71 mmol/l (p < 0.0001), respectively]. This was accompanied by a significant increase in insulin AUC(0-3 h) [34.68 ± 12.16 (p < 0.01) and 31.49 ± 12.20 (p < 0 · 05) µIU·h/ml, respectively]. Improvement in glycaemic profile was mirrored by a significant change in fasting plasma glucose [-2.37 ± 0·27 (p < 0.0001) and -1.88 ± 0.27 mmol/l (p < 0.0001), respectively]. No cases of hypoglycaemia were observed despite the significant reduction in plasma glucose.

CONCLUSIONS:

These exploratory findings provide evidence of the glucose-dependent insulinotropic potential of the GPR40 agonist TAK-875, and the promising clinical changes support future longer term clinical investigation.

© 2011 Blackwell Publishing Ltd.

[PubMed - indexed for MEDLINE]
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