Affiliation:
1. Hua Medicine Shanghai China
2. Japan‐China Friendship Hospital Beijing China
3. Taikang Yanyuan Rehabilitation Hospital Beijing China
Abstract
AbstractAimTo investigate the effect of improving early phase insulin secretion function for glycaemic control in patients with type 2 diabetes mellitus treated with a new class of antidiabetic drug dorzagliatin.Materials and MethodsEarly insulin secretion function was studied in 726 participants of which 414 were treated with dorzagliatin in the SEED and DAWN study. The early insulinogenic index (IGI30min) and disposition index (DI) were used to assess early‐phase insulin secretion function in this study. Logistic regression analysis was performed to verify the importance of IGI30min and DI indices for achieving effective glycaemic control.ResultsThe reduction in HbA1c has a significant correlation with the improvement of IGI30min for patients that received 24 weeks of dorzagliatin treatment (p < .001), and this correlation was not observed in the placebo group (p = .364). In the dorzagliatin treatment group, the responders showed significant improvements in homeostasis model assessment 2‐β, IGI30min and DI compared with the non‐responders. Logistic regression analysis revealed that the odds ratio (OR) for achieving glycaemic control was 1.28 (95% CI 1.14‐1.43) for baseline IGI30min, and 1.24 (95% CI 1.14‐1.35) for the 24‐week incremental IGI30min from baseline. The OR for baseline DI and 24‐week changes in DI from baseline were 1.39 (95% CI 1.2‐1.6) and 1.30 (95% CI 1.19‐1.43) respectively. The timing of insulin secretion analysis showed the significant contribution of early‐phase insulin secretion, rather than late‐phase insulin secretion, to postprandial glucose control with the OR for the incremental IGI30min and IGI2h to postprandial glucose control were 1.3 (95% CI 1.19‐1.42) and 1 (95% CI 1‐1.01) respectively.ConclusionsRestoring the impaired early‐phase insulin secretion function in patients with type 2 diabetes mellitus is a critical factor for improving the glycaemic control by dorzagliatin treatment.
Subject
Endocrinology,Endocrinology, Diabetes and Metabolism,Internal Medicine