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KMID : 1200020110350020159
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Diabetes & Metabolism Journal
2011 Volume.35 No. 2 p.159 ~ p.165
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Predictive Clinical Parameters for the Therapeutic Efficacy of Sitagliptin in Korean Type 2 Diabetes Mellitus
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Kim Soon-Ae
Shim Woo-Ho
Lee Eun-Hae
Lee Young-Mi
Beom Sun-Hee
Kim Eun-Sook
Yoo Jeong-Seon
Nam Ji-Sun
Cho Min-Ho
Park Jong-Suk
Ahn Chul-Woo
Kim Kyung-Rae
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Abstract
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Background: Sitagliptin is a highly selective dipeptidyl peptide-4 (DPP-4) inhibitor that increases blood levels of active glucagon-like peptide (GLP)-1 and glucose-dependent insulinotrophic polypeptide (GIP), resulting in increased insulin secretion. While studies conducted in other countries have indicated the efficacy and safety of using sitagliptin to treat type 2 diabetes mellitus (T2DM), its predictors of effects to sitagliptin are not well understood. Therefore, we evaluated the predictive clinical parameters for the therapeutic benefits of sitagliptin when added to an ongoing metformin or sulfonylurea therapy in Korean T2DM subjects.
Methods: We obtained data from 251 Korean T2DM subjects who had recently started taking sitagliptin as add-on therapy. Exclusion criteria included any insulin use. Changes in HbA1c (ΔHbA1c) and fasting plasma glucose (ΔFPG) were assessed by comparing baseline levels prior to sitagliptin administration to levels 12 and 24 weeks after treatment. Responders were defined as subjects who experienced decrease from baseline of >10% in ΔHbA1c or >20% in ΔFPG levels at 24 weeks.
Results: We classified 81% of the subjects (204 out of 251) as responders. The responder group had a lower mean body mass index (23.70±2.40 vs. 26.00±2.26, P≤0.01) and were younger (58.83±11.57 years vs. 62.87±12.09 years, P=0.03) than the non-responder group.
Conclusion: In Korean T2DM subjects, sitagliptin responders had lower body mass index and were younger compared to non-responders.
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KEYWORD
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Diabetes mellitus, type 2, Dipeptidyl peptide-4 inhibitor, Sitagliptin
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