Abstract
Aims
We aimed to identify patients who would benefit from basal insulin-supported oral therapy (BOT) with a glinide and an α-glucosidase inhibitor (a fixed-dose combination tablet of mitiglinide 10 mg and voglibose 0.2 mg) in Japanese type 2 diabetic patients.
Methods
Patients who were hospitalized to improve hyperglycemia received basal–bolus insulin therapy. After the reduction of glucose toxicity, a 75 g oral glucose tolerance test and a glucagon test were performed. Thereafter, the basal–bolus insulin therapy was switched to BOT with mitiglinide, followed by further addition of voglibose. Interstitial glucose levels were continuously monitored throughout the study period. Diurnal glucose profile was recorded and analyzed. Patients were divided into two groups according to whether their percentage of time in range (TIR, 70–180 mg/dL) under BOT with mitiglinide/voglibose was higher than 70% or not, and the differences in clinical characteristics between the groups were analyzed.
Results
Twenty patients were enrolled, and 19 of them completed the study. BOT with mitiglinide/voglibose achieved ≥ 70% of TIR in thirteen patients. The area under the curve of serum C-peptide levels during the oral glucose tolerance test was significantly higher in the patients with ≥ 70% of TIR. The daily insulin dosages and blood glucose profiles were comparable between the two groups.
Conclusions
The efficacy of BOT with mitiglinide/voglibose depended on residual insulin secretory abilities. This therapy would be a useful therapeutic option for patients with type 2 diabetes.
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Data availability
The data sets used and/or analysed in this study are available from the corresponding author on reasonable request.
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Acknowledgements
The authors are grateful to many people for their guidance and support in conducting this study and preparing this manuscript, including the following medical staff in Division of Diabetes, Department of Internal Medicine, Aichi Medical University School of Medicine: Yusuke Hayashi, Risa Shimauchi, Yukiko Funahashi, Yuki Uchihara, and Nobuhiro Hirai.
Funding
This study was conducted with funding from Kissei Pharmaceutical Co. Ltd.
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Conceptualization: HK, JN; methodology: TH, ST, YK; formal analysis and investigation: TA, MK, YA-Y, MK, EA-H, TH, MM, YE, EN, RK, HN-S, SA, MK, YY, EY-M, TI, YS-R, CK, EN; writing—original draft preparation: TA, MK, TH; writing—review and editing: HK, JN; supervision: HK, JN.
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Hideki Kamiya: lecture fees: Novo Nordisk Pharma, Sanofi, Sumitomo Pharma, Nippon Boehringer Ingelheim, Eli Lilly Japan, Daiichi Sankyo, Ono Pharmaceutical, Kissei Pharmaceutical, Mitsubishi Tanabe Pharma, Kowa, Novartis Pharma, MSD, Sanwa Kagaku Kenkyusho, Otsuka Pharmaceutical, Ltd., Terumo, Taisho Pharmaceutical. Research funding: Ono Pharmaceutical, Eli Lilly Japan, Kissei Pharmaceutical. Subsidies or donations: Ono Pharmaceutical, Taisho Pharmaceutical, Sumitomo Pharma, Takeda Pharmaceutical, Mitsubishi Tanabe Pharma, Japan Tobacco, Novo Nordisk Pharma. Endowed departments by commercial entities: Ono Pharmaceutical, Abbott Japan, Sanwa Kagaku Kenkyusho, Kowa, Terumo. Jiro Nakamura: lecture fees: Novo Nordisk Pharma, Sanofi, Daiichi Sankyo, Ono Pharmaceutical, Novartis Pharma, MSD, Taisho Pharmaceutical, Takeda Pharmaceutical, Terumo. Research funding: Eli Lilly Japan, Ono Pharmaceutical, Kissei Pharmaceutical. Subsidies or donations: MSD, Ono Pharmaceutical, Sumitomo Pharma, Takeda Pharmaceutical, Mitsubishi Tanabe Pharma, Japan Tobacco, Novo Nordisk Pharma, Taisho Pharmaceutical. Endowed departments by commercial entities: Ono Pharmaceutical, Abbott Japan, Sanwa Kagaku Kenkyusho, Kowa, Terumo. The other authors declare no conflict of interest.
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All the procedures followed were in accordance with the ethical standards of the Ethics Committee of the Aichi Medical University (Approval No. 15-035, approval data: 09/04/2015) and with the Helsinki Declaration of 1964 and later versions.
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Informed consent or substitute for it was obtained from all the patients for being included in the study.
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Ando, T., Kondo, M., Asada-Yamada, Y. et al. The efficacy of switching basal–bolus insulin therapy to basal insulin-supported oral therapy with a glinide and an α-glucosidase inhibitor in patients with type 2 diabetes depends on insulin secretory capacity, but not on blood glucose profiles and insulin dosages prior to the switching. Diabetol Int 15, 99–108 (2024). https://doi.org/10.1007/s13340-023-00651-z
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DOI: https://doi.org/10.1007/s13340-023-00651-z