Glucagon-like Peptide-1 Receptor Agonists and Risk of Major Adverse Cardiovascular Events in Patients With CKD
Kevin Yau1, Joel G Ray2, Nivethika Jeyakumar3
1Division of Nephrology, St Michael's Hospital, Toronto, Ontario, Canada; Department of Medicine, University of Toronto, Toronto, Ontario, Canada; Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada; Department of Medicine, St Michael's Hospital, University of Toronto, Toronto, Ontario, Canada; Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada; Division of Nephrology, Department of Medicine, University Health Network, Toronto, Ontario, Canada.
Rationale & Objective:
There are limited real-world data describing the cardiovascular benefits of glucagon-like peptide-1 receptor agonists (GLP1-RAs) across the spectrum of chronic kidney disease (CKD) severity. This study evaluated the association of GLP1-RAs with major adverse cardiovascular events (MACE) in comparison with dipeptidyl peptidase-4 (DPP-4) inhibitors in the setting of CKD.
Study Design:
Retrospective observational cohort study.
Setting & Participants:
24,576 new users of GLP1-RA and 44,367 new users of DPP-4 inhibitors with estimated glomerular filtration rate (eGFR) < 90 mL/min/1.73 m2 in Ontario, Canada.
Exposure:
New use of GLP1-RAs versus DPP-4 inhibitors.
Outcome:
The primary outcome was MACE, comprising nonfatal myocardial infarction, unstable angina, nonfatal ischemic stroke or transient ischemic attack, coronary revascularization, and cardiovascular death. Secondary outcomes included individual components of the composite outcome, hospitalization or emergency department visits for congestive heart failure, peripheral vascular disease revascularization, lower limb amputation, and all-cause mortality.
Analytical Approach:
Inverse probability of treatment weighting using propensity scores was used to minimize confounding. Multivariable Fine-Gray subdistribution hazard models stratified by eGFR subgroup were fit to evaluate the primary outcome.
Findings:
Mean age of study participants was 69 years, 50% were female, 92% had type 2 diabetes mellitus, 40% were taking a sodium/glucose cotransporter 2 (SGLT2) inhibitor, and 41% had CKD stages 3-5. MACE occurred among 1,296 (31.6 per 1,000 person-years) GLP1-RA users versus 1,374 (36.5 per 1,000 person-years) DPP-4 inhibitor users (subdistribution hazard ratio [SHR], 0.88 [95% CI, 0.80-0.97]). The lower rate of MACE among GLP1-RA users was largely related to a lower rate of cardiovascular death (SHR, 0.72 [95% CI, 0.62-0.85]). In subgroup analyses, there was no effect modification between the association of GLP1-RA initiation and lower rates of MACE by CKD stages, degree of albuminuria, or concomitant use of SGLT2 inhibitors.
Limitations:
Retrospective design. A substantial amount of missing information on albuminuria.
Conclusions:
In a population-based study of individuals across the spectrum of kidney disease, GLP1-RA initiation was associated with a lower rate of MACE than initiation of DPP-4 inhibitors.
Plain-Language Summary:
A class of medications called glucagon-like peptide-1 receptor agonists (GLP1-RA) is now used for the treatment of diabetes. This study explored the association of GLP1-RA administration with cardiac health in people with kidney disease compared with another common class of diabetes medication, dipeptidyl peptidase-4 (DPP-4) inhibitors. In this study of nearly 69,000 individuals in Ontario, Canada, with a wide range of kidney function, people taking GLP1-RA experienced a lower rate of heart disease than those taking DPP-4 inhibitors. The lower rate was mainly related to fewer deaths from heart disease. Differences were consistent across different levels of kidney disease and regardless of whether people were also taking other medications that protect the heart.
Insights
Glucagon-like peptide-1 receptor agonists (GLP1-RAs) were associated with reduced major adverse cardiovascular events (MACE) compared to dipeptidyl peptidase-4 (DPP-4) inhibitors in individuals with chronic kidney disease (CKD). This benefit was observed across various CKD stages and was primarily driven by a decrease in cardiovascular death.
Area of Science:
- Cardiovascular Medicine
- Nephrology
- Pharmacology
Background:
- Limited real-world data exist on the cardiovascular benefits of glucagon-like peptide-1 receptor agonists (GLP1-RAs) across the spectrum of chronic kidney disease (CKD) severity.
- GLP1-RAs are increasingly used for diabetes management, necessitating an understanding of their cardiovascular impact in patients with impaired kidney function.
Purpose of the Study:
- To evaluate the association of GLP1-RAs with major adverse cardiovascular events (MACE) compared to dipeptidyl peptidase-4 (DPP-4) inhibitors in patients with CKD.
- To assess cardiovascular outcomes across different stages of CKD severity.
Main Methods:
- Retrospective observational cohort study involving 24,576 new GLP1-RA users and 44,367 new DPP-4 inhibitor users with estimated glomerular filtration rate (eGFR) < 90 mL/min/1.73 m² in Ontario, Canada.
- Inverse probability of treatment weighting and multivariable Fine-Gray subdistribution hazard models were employed to minimize confounding and analyze outcomes.
- Primary outcome was MACE (nonfatal MI, unstable angina, nonfatal ischemic stroke/TIA, coronary revascularization, cardiovascular death); secondary outcomes included heart failure hospitalizations, peripheral vascular disease, amputation, and all-cause mortality.
Main Results:
- GLP1-RA initiation was associated with a lower rate of MACE compared to DPP-4 inhibitor initiation (subdistribution hazard ratio [SHR], 0.88; 95% CI, 0.80-0.97).
- The reduction in MACE was primarily driven by a significantly lower rate of cardiovascular death (SHR, 0.72; 95% CI, 0.62-0.85).
- No significant effect modification was observed based on CKD stages, albuminuria levels, or concomitant use of SGLT2 inhibitors.
Conclusions:
- In a population-based study of individuals with varying degrees of kidney disease, GLP1-RA initiation demonstrated a cardiovascular benefit over DPP-4 inhibitors.
- GLP1-RAs are associated with a reduced risk of MACE, particularly cardiovascular death, in patients with CKD.
- Limitations include the retrospective design and missing albuminuria data, warranting further prospective investigation.
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