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GLP-1RAs and SGLT2is Reduce Cardiovascular Events Independent of Reductions of Systolic Blood Pressure and Body
Mei Qiu1, Liang-Liang Ding2, Miao Zhang3
1Department of General Medicine, Shenzhen Longhua District Central Hospital, Shenzhen, 518110, China. 13798214835@sina.cn.
Introduction:
The impact of reduction of systolic blood pressure or body weight on reduction of cardiovascular events during the treatment with glucagon-like peptide 1 receptor agonists (GLP-1RAs) or sodium-glucose cotransporter 2 inhibitors (SGLT2is) for type 2 diabetes is unclear.
Methods:
We searched Embase and PubMed. We performed meta-analysis using hazard ratio (HR) and 95% confidence interval (CI) as effect size stratified by drug class on six endpoints of interest, which were major adverse cardiovascular events (MACE), hospitalization for heart failure (HHF), cardiovascular death (CVD), myocardial infarction (MI), stroke, and all-cause death (ACD). We performed meta-regression to assess the difference between GLP-1RAs and SGLT2is, and the impact of reduction of systolic blood pressure or body weight on reduction of cardiovascular events.
Results:
We included 11 randomized trials. Compared with placebo, SGLT2is reduced HHF by 32% (HR 0.68, 95% CI 0.60-0.76) whereas GLP-1RAs reduced HHF by only 9% (HR 0.91, 95% CI 0.83-0.99). The benefit from SGLT2is on HHF was significantly greater than that from GLP-1RAs (Psubgroup = 0.004). GLP-1RAs reduced stroke by 16% (HR 0.84, 95% CI 0.76-0.93) whereas SGLT2is did not reduce stroke (HR 0.96, 95% CI 0.82-1.12). GLP-1RAs and SGLT2is similarly reduced MACE by 12%, CVD by 15%, MI by 9%, and ACD by 13%. The effects of systolic blood pressure reduction and body weight reduction on the logarithms of HRs of GLP-1RAs or SGLT2is vs. placebo as for reducing six endpoints of interest were not statistically significant (β ranged from - 0.145 to 0.269, and P ranged from 0.211 to 0.941).
Conclusions:
GLP-1RAs and SGLT2is lead to similar benefits on MACE, CVD, MI, and ACD in adults with type 2 diabetes. The benefit from SGLT2is on HHF is greater than that from GLP-1RAs, while GLP-1RAs vs. placebo significantly reduce stroke whereas SGLT2is do not. The two drug classes reduce cardiovascular events independent of reductions of systolic blood pressure and body weight.
Insights
Glucagon-like peptide-1 receptor agonists (GLP-1RAs) and sodium-glucose cotransporter-2 inhibitors (SGLT2is) offer similar benefits for major adverse cardiovascular events and all-cause death in type 2 diabetes. SGLT2is better reduce heart failure hospitalizations, while GLP-1RAs reduce stroke risk.
Area of Science:
- Cardiology
- Endocrinology
- Pharmacology
Background:
- Type 2 diabetes (T2D) management involves medications like GLP-1RAs and SGLT2is.
- The comparative impact of these drug classes on cardiovascular events and the role of blood pressure and weight reduction remain unclear.
Purpose of the Study:
- To compare the efficacy of GLP-1RAs and SGLT2is in reducing cardiovascular events in T2D patients.
- To investigate the influence of systolic blood pressure and body weight reduction on cardiovascular outcomes.
Main Methods:
- A meta-analysis of 11 randomized trials was conducted.
- Hazard ratios (HR) and 95% confidence intervals (CI) were used to assess six cardiovascular endpoints.
- Meta-regression explored differences between drug classes and the impact of physiological changes.
Main Results:
- SGLT2is significantly reduced hospitalization for heart failure (HHF) more than GLP-1RAs (32% vs 9%).
- GLP-1RAs reduced stroke risk (16%), an effect not observed with SGLT2is.
- Both drug classes similarly reduced major adverse cardiovascular events (MACE), cardiovascular death (CVD), myocardial infarction (MI), and all-cause death (ACD).
Conclusions:
- GLP-1RAs and SGLT2is provide comparable benefits for MACE, CVD, MI, and ACD in T2D.
- SGLT2is demonstrate a superior effect on HHF reduction compared to GLP-1RAs.
- Cardiovascular event reduction by these agents is independent of systolic blood pressure and body weight changes.
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