Low Use of Guideline-recommended Cardiorenal Protective Antihyperglycemic Agents in Primary Care: A Cross-sectional Study of Adults With Type 2 Diabetes

Jun 23, 2022Canadian journal of diabetes

Low Use of Recommended Heart and Kidney Protective Diabetes Medicines in Primary Care Adults with Type 2 Diabetes

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Abstract

Among 11,939 persons living with type 2 diabetes mellitus, 66.3% had a cardiorenal indication for SGLT2 inhibitors or GLP-1 receptor agonists.

Only 19.4% of those in secondary prevention and 16.6% in primary prevention were prescribed SGLT2 inhibitors or GLP-1 receptor agonists.
This compares to 20.0% of individuals with no specific cardiorenal indication receiving these medications.
Age, male sex, and higher glycated hemoglobin levels were associated with the likelihood of being prescribed SGLT2 inhibitors or GLP-1 receptor agonists.
The low prescribing rates and minimal differences between high-risk and no cardiorenal indication groups suggest barriers to medication access in primary care.

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OBJECTIVES: Glucagon-like peptide-1 receptor agonists (GLP-1 RA) and sodium-glucose cotransporter-2 inhibitors (SGLT2i) have shown cardiorenal benefits independent of their glucose-lowering effects among persons living with type 2 diabetes mellitus (T2DM). In this study, we describe the proportion of persons with T2DM eligible to receive and currently receiving these agents based on their risk criteria for cardiorenal events.

METHODS: This study was a cross-sectional analysis of primary care electronic medical records, in southern Alberta, of persons with T2DM who had at least 1 encounter with their primary care provider between December 31, 2018, to December 31, 2020. A descriptive and multivariate logistic regression analysis was conducted to examine clinical and demographic determinants of being prescribed one of the new treatments.

RESULTS: Our study sample included 11,939 persons living with T2DM, among whom 66.3% had a cardiorenal indication for SGLT2i or GLP-1 RA use. In the secondary and primary prevention subsamples, 19.4% and 16.6% of persons were prescribed SGLT2i or GLP-1 RA, respectively, compared with 20.0% of those with no specific cardiorenal indication. Several person-level characteristics, such as age (odds ratio [OR], 0.96; 95% confidence interval [CI], 0.96 to 0.97), male sex (OR, 1.37; 95% CI, 1.21 to 1.55) and glycated hemoglobin (OR, 1.29; 95% CI, 1.24 to 1.34), were associated with being prescribed SGLT2i or GLP-1 RA.

CONCLUSIONS: Low rates of SGLT2i or GLP-1 RA use and minimal differences between high-risk and no cardiorenal indication subsamples suggest the presence of barriers to prescribing these medications in a primary care setting. Action to highlight the indications for, and improve access to agents with, cardiorenal benefits will be required to achieve better outcomes for people with T2DM in primary care.

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Low Use of Guideline-recommended Cardiorenal Protective Antihyperglycemic Agents in Primary Care: A Cross-sectional Study of Adults With Type 2 Diabetes

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