Cardiovascular and mortality outcomes of DPP-4 inhibitors vs. sulfonylureas as metformin add-on therapy in patients with type 2 diabetes: A systematic review and meta-analysis

Refli Hasan, Uliana Y Chugaeva, Mahdi Mohammadian, Somayeh Zamanifard and Abdollah Mohammadian-Hafshejani

PLOS ONE, 2025, vol. 20, issue 5, 1-22

Abstract: Background: Type 2 diabetes significantly increase the risk of cardiovascular disease and mortality. This systematic review and meta-analysis compared cardiovascular and mortality outcomes in type 2 diabetes patients receiving dipeptidyl peptidase-4 inhibitors (DPP-4is) plus metformin versus sulfonylureas (SUs) plus metformin as add-on therapy. Methods: PubMed, Web of Science, Cochrane Central Register of Controlled Trials, Embase, Google Scholar, and Scopus were searched through January 1, 2025, for studies comparing DPP-4is plus metformin versus SUs plus metformin in type 2 diabetes patients. Outcomes of interest were major adverse cardiovascular events and all-cause mortality. Heterogeneity was assessed using Cochran’s Q test and I2 statistic. Publication bias was evaluated with Begg’s and Egger’s tests. Study quality was assessed with the Jadad scale (for randomized controlled trials) and the Newcastle-Ottawa Scale (for observational studies). Results: Twenty-seven studies (2012–2024), encompassing 1,505,821 participants, were included in the analysis. Major adverse cardiovascular events were reported in 21 studies, and all-cause mortality data were available from 19 studies. Meta-analysis revealed a significantly lower risk of both major adverse cardiovascular events (risk ratio [RR]: 0.79; 95% confidence interval [CI]: 0.73–0.84; p

Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0321032

DOI: 10.1371/journal.pone.0321032

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