Abstract
Objective
To identify the attenuating factor of glycated hemoglobin (HbA1c)-lowering effects of liraglutide in type 2 diabetes (T2D) patients over the long term.
Methods
Forty-six T2D patients received liraglutide-glimepiride combination therapy. Clinical characteristics were compared between the following two subgroups: the relapse group (≥0.4 % increase in HbA1c in 48 weeks compared to 12 weeks) and non-relapse group (remaining patients). A glucagon-loading test was performed to evaluate baseline endogenous insulin secretion.
Results
In the relapse group, significantly reduced HbA1c, as observed at 12 weeks, tended to increase at 24 and 48 weeks. In the non-relapse group, reduced HbA1c was maintained for 48 weeks. Body weight was decreased at 12 weeks and then recovered at 48 weeks in both groups. Baseline BMI was significantly higher in the relapse group than in the non-relapse group. Age, HbA1c, duration of diabetes, fasting C-peptide, daily glimepiride dose and the duration of glimepiride treatment were comparable between both groups. Multiple logistic regression analysis revealed that baseline BMI was independently associated with the relapse group.
Conclusion
A higher BMI is the leading factor for attenuating long-term glycemic control by liraglutide in T2D patients undergoing sulfonylurea-based therapy.
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All procedures followed were in accordance with the Institutional Review Board for Clinical Research at the Showa University of Medicine and with the Helsinki Declaration of 1964 and later versions. Informed consent was obtained from all patients for being included in the study.
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Takeshi Yamamoto, Tomoyasu Fukui, Akiko Higuchi, Makoto Ohara, and Toshiyuki Hayashi declare that they have no conflicts of interest. Tsutomu Hirano received a research grant from Eli Lilly Japan K.K. and Takeda Pharmaceutical Co., Ltd., and received lecture fees from Astra Zeneca, Mitsubishi Tanabe Pharma Corp., and MSD K.K.
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Yamamoto, T., Fukui, T., Higuchi, A. et al. A higher body mass index attenuates the long-term HbA1c-lowering effects of liraglutide in type 2 diabetes patients treated using sulfonylurea-based therapy. Diabetol Int 7, 425–431 (2016). https://doi.org/10.1007/s13340-016-0269-8
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DOI: https://doi.org/10.1007/s13340-016-0269-8