Evidence for Cardiorenal Protection with SGLT-2 Inhibitors and GLP-1 Receptor Agonists in Patients with Diabetic Kidney Disease

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Abstract

For almost two decades, the management of patients with type 2 diabetes mellitus (T2DM) and chronic kidney disease (CKD) was based on the optimal glycemic and blood pressure control as well as on the adequate blockade of the renin-angiotensin-system. Over the past few years, sodium-glucose co-transporter 2 (SGLT-2) inhibitors and glucagone-like peptide 1 receptor agonists (GLP1-RAs) were added to our therapeutic armarhatum, offering promise for more effective mitigation of the substantial residual cardiorenal risk of these patients. Large randomized controlled trials (RCTs) designed to demonstrate the cardiovascular safety of SGLT-2 inhibitors and GLP1-RAs showed that these novel anti-diabetic medications improve cardiovascular outcomes in patients with T2DM. RCTs conducted specifically in CKD patients with or without T2DM demonstrated that SGLT-2 inhibitors were also effective in retarding the progression of kidney injury to end-stage kidney disease. The kidney protective effects of GLP1-RA are not yet proven, but RCTs are currently ongoing to investigate this crucial research question. In this article, we review the available clinical-trial evidence supporting the use of SGLT-2 inhibitors and GLP1-RAs for cardiorenal protection in patients with T2DM and CKD. We provide clinical practice recommendations for a personalized approach in the use of these novel therapies, according to the severity of CKD and the presence of other cardiometabolic risk factors.

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Most cited references 51

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Empagliflozin, Cardiovascular Outcomes, and Mortality in Type 2 Diabetes.

Bernard Zinman, Christoph Wanner, John M. Lachin … (2015)

The effects of empagliflozin, an inhibitor of sodium-glucose cotransporter 2, in addition to standard care, on cardiovascular morbidity and mortality in patients with type 2 diabetes at high cardiovascular risk are not known.

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Canagliflozin and Cardiovascular and Renal Events in Type 2 Diabetes

Bruce Neal, Vlado Perkovic, Kenneth Mahaffey … (2017)

Background Canagliflozin is a sodium-glucose cotransporter 2 inhibitor that reduces glycemia as well as blood pressure, body weight, and albuminuria in people with diabetes. We report the effects of treatment with canagliflozin on cardiovascular, renal, and safety outcomes. Methods The CANVAS Program integrated data from two trials involving a total of 10,142 participants with type 2 diabetes and high cardiovascular risk. Participants in each trial were randomly assigned to receive canagliflozin or placebo and were followed for a mean of 188.2 weeks. The primary outcome was a composite of death from cardiovascular causes, nonfatal myocardial infarction, or nonfatal stroke. Results The mean age of the participants was 63.3 years, 35.8% were women, the mean duration of diabetes was 13.5 years, and 65.6% had a history of cardiovascular disease. The rate of the primary outcome was lower with canagliflozin than with placebo (occurring in 26.9 vs. 31.5 participants per 1000 patient-years; hazard ratio, 0.86; 95% confidence interval [CI], 0.75 to 0.97; P<0.001 for noninferiority; P=0.02 for superiority). Although on the basis of the prespecified hypothesis testing sequence the renal outcomes are not viewed as statistically significant, the results showed a possible benefit of canagliflozin with respect to the progression of albuminuria (hazard ratio, 0.73; 95% CI, 0.67 to 0.79) and the composite outcome of a sustained 40% reduction in the estimated glomerular filtration rate, the need for renal-replacement therapy, or death from renal causes (hazard ratio, 0.60; 95% CI, 0.47 to 0.77). Adverse reactions were consistent with the previously reported risks associated with canagliflozin except for an increased risk of amputation (6.3 vs. 3.4 participants per 1000 patient-years; hazard ratio, 1.97; 95% CI, 1.41 to 2.75); amputations were primarily at the level of the toe or metatarsal. Conclusions In two trials involving patients with type 2 diabetes and an elevated risk of cardiovascular disease, patients treated with canagliflozin had a lower risk of cardiovascular events than those who received placebo but a greater risk of amputation, primarily at the level of the toe or metatarsal. (Funded by Janssen Research and Development; CANVAS and CANVAS-R ClinicalTrials.gov numbers, NCT01032629 and NCT01989754 , respectively.).

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Dapagliflozin and Cardiovascular Outcomes in Type 2 Diabetes

Stephen Wiviott, Itamar Raz, Marc Bonaca … (2018)

The cardiovascular safety profile of dapagliflozin, a selective inhibitor of sodium-glucose cotransporter 2 that promotes glucosuria in patients with type 2 diabetes, is undefined.