Abstract
Background
Glucagon-like peptide-1 receptor agonists (GLP-1 RA) are increasingly being prescribed in drug-naive patients. We aimed to contrast add-on therapy, adherence, and changes in biomarkers, 1 year after treatment initiation with GLP-1 RA or metformin.
Methods
Using Danish nationwide registers, we included incident GLP-1 RA or metformin users from 2018 to 2021 with glycated hemoglobin (HbA1c) ≥ 42 mmol/mol. GLP-1 RA initiators were matched to metformin initiators in a ratio of 1:1 to assess outcomes in prediabetes and diabetes. Main outcomes analyzed were 1-year risk of add-on glucose-lowering medication and 1-year risk of nonadherence. One-year risks were estimated with multiple logistic regression and standardized. Multiple linear regression was used to estimate the average differences in biomarker changes.
Results
In total, 1778 individuals initiating GLP-1 RA and metformin were included. After standardizing for various factors, GLP-1 RA compared with metformin was associated with reduced 1-year risk of add-on glucose-lowering treatment in patients with prediabetes (1-year risk ratio [RR]: 0.27, 95% confidence interval [CI]: 0.10–0.44) and diabetes (RR: 0.67, 95% CI: 0.37–0.98). GLP-1 RA was associated with higher 1-year risk of nonadherence among patients with prediabetes (RR: 1.60, 95% CI: 1.45–1.75), but no difference in patients with diabetes (RR: 0.88, 95% CI: 0.70–1.06). Compared to metformin, GLP-1 RA was associated with greater HbA1c reduction (prediabetes: −2.59 mmol/mol 95% CI: −3.10 to −2.09, diabetes: −3.79 mmol/mol, 95% CI: −5.28 to −2.30).
Conclusions
GLP-1 RA was associated with a reduced risk of additional glucose-lowering medication, achieving better glycated hemoglobin control overall. However, among patients with prediabetes, metformin was associated with better adherence.
Glucagon-like peptide-1 receptor agonists (GLP-1 RA) are increasingly being prescribed in drug-naive patients. We aimed to contrast add-on therapy, adherence, and changes in biomarkers, 1 year after treatment initiation with GLP-1 RA or metformin.
Methods
Using Danish nationwide registers, we included incident GLP-1 RA or metformin users from 2018 to 2021 with glycated hemoglobin (HbA1c) ≥ 42 mmol/mol. GLP-1 RA initiators were matched to metformin initiators in a ratio of 1:1 to assess outcomes in prediabetes and diabetes. Main outcomes analyzed were 1-year risk of add-on glucose-lowering medication and 1-year risk of nonadherence. One-year risks were estimated with multiple logistic regression and standardized. Multiple linear regression was used to estimate the average differences in biomarker changes.
Results
In total, 1778 individuals initiating GLP-1 RA and metformin were included. After standardizing for various factors, GLP-1 RA compared with metformin was associated with reduced 1-year risk of add-on glucose-lowering treatment in patients with prediabetes (1-year risk ratio [RR]: 0.27, 95% confidence interval [CI]: 0.10–0.44) and diabetes (RR: 0.67, 95% CI: 0.37–0.98). GLP-1 RA was associated with higher 1-year risk of nonadherence among patients with prediabetes (RR: 1.60, 95% CI: 1.45–1.75), but no difference in patients with diabetes (RR: 0.88, 95% CI: 0.70–1.06). Compared to metformin, GLP-1 RA was associated with greater HbA1c reduction (prediabetes: −2.59 mmol/mol 95% CI: −3.10 to −2.09, diabetes: −3.79 mmol/mol, 95% CI: −5.28 to −2.30).
Conclusions
GLP-1 RA was associated with a reduced risk of additional glucose-lowering medication, achieving better glycated hemoglobin control overall. However, among patients with prediabetes, metformin was associated with better adherence.
| Originalsprog | Engelsk |
|---|---|
| Artikelnummer | e70000 |
| Tidsskrift | Journal of Diabetes |
| Vol/bind | 16 |
| Udgave nummer | 10 |
| Antal sider | 12 |
| ISSN | 1753-0393 |
| DOI | |
| Status | Udgivet - 1 okt. 2024 |
Bibliografisk note
Publisher Copyright:© 2024 The Author(s). Journal of Diabetes published by Ruijin Hospital, Shanghai Jiaotong University School of Medicine and John Wiley & Sons Australia, Ltd.