Abstract
Purpose
Clinical response to glucagon-like peptide-1 receptor agonists (GLP1RAs) varies considerably among patients with type 2 diabetes mellitus (T2DM). The aim of the current study was to examine the potential association between the genetic variants in GLP1R gene polymorphism with the therapeutic efficacy as well as gastrointestinal adverse drug reactions (ADRs) of GLP1RAs in Chinese T2DM patients.
Methods
Adult T2DM patients were eligible to participate in this prospective cohort study. Subjects received 12-week treatment with either exenatide (20 μg/day) or liraglutide (1.2 mg/day). GLP1R rs10305420 and rs3765467 genotyping was performed using the Sanger sequencing method. Clinical response to GLP1RAs was assessed in the patients who completed the 12-week treatment and defined by the change of fasting plasma glucose (FPG), glycated hemoglobin (HbA1c), and body mass index (BMI) from the baseline.
Results
A total of 176 subjects (mean age 50.9 ± 12.7 years, 111 men) were enrolled. The planned 12-week treatment was completed by 156 patients. HbA1c reduction was significantly larger in subjects carrying the rs3765467 GG genotype vs. GA + AA genotypes (1.7% ± 2.4% vs. 0.8% ± 1.8%; P = 0.002). Similarly, the 7.0% target HbA1c attainment rate was significantly higher in subjects carrying the rs3765467 GG genotype vs. GA + AA genotypes (50.9% vs. 23.8%; P = 0.002). Gastrointestinal ADRs did not differ significantly among different genotypes.
Conclusion
GLP1R rs3765467 polymorphism is associated with therapeutic response to GLP1RAs in Chinese T2DM patients. HbA1c reduction is more pronounced in subjects with the GG genotype.
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Funding
This work was supported by the National Key Development Plan for Precision Medicine Research (2017YFC0910004) and Jinan Science Project (201602171).
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YL designed and supervised the study. ZG and YD performed the data analysis and drafted the manuscript. RL, YX, FZ, YY, and XZ participated in the data collection and sample analysis. KW, XL, and SZ participated in the data analysis.
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Guan, Z., Du, Y., Li, R. et al. Association between glucagon-like peptide-1 receptor gene polymorphism and treatment response to GLP1R agonists in Chinese patients with type 2 diabetes: a prospective cohort study. Eur J Clin Pharmacol 78, 793–799 (2022). https://doi.org/10.1007/s00228-021-03249-z
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DOI: https://doi.org/10.1007/s00228-021-03249-z