SynthesisFrontiers in medicine2026
Tirzepatide vs. semaglutide for obesity, glycemic control, and cardiovascular outcomes: a narrative review of clinical trials.
Synthesis in Frontiers in medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Tirzepatide, a dual glucose-dependent insulinotropic polypeptide, (GIP) and glucagon-like peptide-1 (GLP-1) receptor agonist, has emerged as an effective therapy for obesity and type 2 diabetes mellitus (T2DM). Its dual-incretin mechanism may offer enhanced metabolic benefits compared with selective GLP-1 receptor agonists such as semaglutide. Methods: A structured narrative review of clinical trials, real-world observational studies, and contextual cardiovascular outcome analyses was conducted. Literature was sourced from ClinicalTrials.gov and relevant scientific databases to compare tirzepatide and semaglutide across weight, glycemic, cardiometabolic, and safety outcomes. Results: Across completed head-to-head randomized trials, tirzepatide consistently achieved greater reductions in body weight, and HbA1c than semaglutide in individuals with obesity or T2DM. Semaglutide, however, has the most mature evidence for cardiovascular risk reduction, as demonstrated in the SUSTAIN-6, PIONEER-6, and SELECT trials. The SURPASS-CVOT trial established cardiovascular non-inferiority for tirzepatide compared with dulaglutide, alongside improvements in cardiometabolic risk factors. Real-world studies reported heterogeneous cardiovascular outcomes. Conclusion: Tirzepatide demonstrates superior metabolic efficacy in direct comparative trials, whereas semaglutide currently has the strongest evidence for cardiovascular benefit. Treatment selection should be individualized based on clinical priorities and patient characteristics.
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