All‐cause mortality and cardiovascular outcomes with sodium‐glucose Co‐transporter 2 inhibitors, glucagon‐like peptide‐1 receptor agonists and with combination therapy in people with type 2 diabetes

Jun 29, 2023Diabetes, obesity & metabolism

Death rates and heart health with SGLT2 inhibitors, GLP-1 receptor drugs, and their combination in type 2 diabetes

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Abstract

SGLT2 inhibitors (SGLT2i) and GLP-1 receptor analogues (GLP-1RA) may reduce the 5-year risk of all-cause mortality by up to 75% when used in combination.

The combination therapy of SGLT2i and GLP-1RA is associated with a significantly lower hazard ratio for all-cause mortality (0.25) compared to a control group.
SGLT2i alone and GLP-1RA alone also show reduced hazard ratios for all-cause mortality (0.49 and 0.47, respectively).
Risk of hospitalization over 5 years is significantly reduced in all intervention cohorts, with combination therapy showing the lowest hazard ratio (0.60).
Acute myocardial infarction risk is significantly lower in those receiving the interventions, with combination therapy having a hazard ratio of 0.63.
Sub-analysis indicates combination therapy results in a significant risk reduction in all-cause mortality compared to both SGLT2i (0.53) and GLP-1RA (0.56).

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AIM: To assess the relationship of sodium-glucose cotransporter-2 inhibitors (SGLT2i), glucagon-like peptide-1 receptor analogues (GLP-1RA) and their combination (SGLT2i + GLP-1RA) with 5-year risk of all-cause mortality, hospitalization and cardiovascular/macrovascular disease in people with type 2 diabetes.

MATERIALS AND METHODS: Retrospective cohort analysis of 2.2 million people with type 2 diabetes receiving insulin across 85 health care organizations using a global federated health research network. Three intervention cohorts (SGLT2i, GLP-1RA and SGLT2i + GLP-1RA) were compared against a control cohort (no SGLT2i/GLP-1RA). Propensity score matching for age, ischaemic heart disease, sex, hypertension, chronic kidney disease, heart failure and glycated haemoglobin was used to balance cohorts 1:1 (SGLT2i, n = 143 600; GLP-1RA, n = 186 841; SGLT-2i + GLP-1RA, n = 108 504). A sub-analysis comparing combination and monotherapy cohorts was also performed.

RESULTS: The intervention cohorts showed a reduced hazard ratio (HR, 95% confidence interval) over 5 years compared with the control cohort for all-cause mortality (SGLT2i 0.49, 0.48-0.50; GLP-1RA 0.47, 0.46-0.48; combination 0.25, 0.24-0.26), hospitalization (0.73, 0.72-0.74; 0.69, 0.68-0.69; 0.60, 0.59-0.61) and acute myocardial infarct (0.75, 0.72-0.78; 0.70, 0.68-0.73; 0.63, 0.60-0.66), respectively. All other outcomes showed a significant risk reduction in favour of the intervention cohorts. The sub-analysis showed a significant risk reduction in all-cause mortality for combination therapy versus SGLT2i (0.53, 0.50-0.55) and GLP-1RA (0.56, 0.54-0.59).

CONCLUSIONS: SGLT2i, GLP-1RAs or combination therapy confers mortality and cardiovascular protection in people with type 2 diabetes over 5 years. Combination therapy was associated with the greatest risk reduction in all-cause mortality versus a propensity matched control cohort. In addition, combination therapy offers a reduction in 5-year all-cause mortality when compared directly against either monotherapy.

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All‐cause mortality and cardiovascular outcomes with sodium‐glucose Co‐transporter 2 inhibitors, glucagon‐like peptide‐1 receptor agonists and with combination therapy in people with type 2 diabetes

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