Cited by 36Pharmacology and Obesity TreatmentDiabetes Treatment and ManagementDiabetes, Cardiovascular Risks, and Lipoproteins

Risk of major adverse cardiovascular events and all-cause mortality under treatment with GLP-1 RAs or the dual GIP/GLP-1 receptor agonist tirzepatide in overweight or obese adults without diabetes: a systematic review and meta-analysis

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Stefanou, Maria-Ioanna, Palaiodimou, Lina, Theodorou, Aikaterini, Safouris, Apostolos, Fischer, Urs, Kelly, Peter J., Dawson, Jesse, Katan, Mira +6 more·2024·Therapeutic Advances in Neurological Disorders

Abstract

Background: Among the currently approved antiobesity medications, the glucagon-like-peptide-1 receptor-agonists (GLP-1 RAs) liraglutide and semaglutide, and the dual glucose-dependent-insulinotropic-polypeptide (GIP)/GLP-1 RA tirzepatide have been suggested to reduce cardiovascular-risk in overweight or obesity without diabetes. Objectives: The objective of this study was to evaluate the cardio- and neuroprotective potential of these novel agents in the nondiabetic overweight/obese adult population. Data sources and methods: A systematic review and meta-analysis of randomized-controlled clinical trials (RCTs) was performed to estimate the risk of major adverse cardiovascular events (MACE), all-cause and cardiovascular mortality in overweight or obese adults without diabetes treated with GLP-1 or GIP/GLP-1 RAs (vs placebo). Secondary outcomes included the risk of myocardial infarction (MI) and stroke. Results: Sixteen RCTs (13 and 3 on GLP-1 RAs and tirzepatide, respectively) comprising 28,168 participants were included. GLP-1 or GIP/GLP-1 RAs reduced MACE (odds ratio (OR): 0.79; 95% confidence interval (CI): 0.71–0.89; p < 0.01; I 2 = 0) and all-cause mortality (OR: 0.80; 95% CI: 0.70–0.92; p < 0.01; I 2 = 0), while there was a trend toward lower cardiovascular-mortality (OR: 0.84; 95% CI: 0.71–1.01; p = 0.06; I 2 = 0%) compared to placebo. Additionally, GLP-1 or GIP/GLP-1 RAs reduced the odds of MI (OR: 0.72; 95% CI: 0.61–0.86; p < 0.01; I 2 = 0%) and nonfatal-MI (OR: 0.72; 95% CI: 0.61–0.85; p < 0.01; I 2 = 0%); while no associations between antiobesity treatment and fatal-MI, stroke, nonfatal, or fatal stroke were uncovered. Conclusion: GLP-1 and GIP/GLP-1 RAs reduce cardiovascular-risk and all-cause mortality in overweight or obese adults without diabetes. Additionally, GLP-1 RAs and GIP/GLP-1 RAs attenuate the risk of MI. Since data on stroke are still limited, future RCTs are warranted to evaluate the neuroprotective potential of these novel antiobesity agents. Trial registration: PROSPERO CRD42024515966.

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  1. [8]Jensen MD Ryan DH Apovian CM, et al. 2013 AHA/ACC/TOS guideline for the management of overweight and obesity in adults: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines and The Obesity Society. Circulation 2014; 129: S102–S138. PMC5819889 24222017

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Authors
Stefanou, M.-I., Palaiodimou, L., Theodorou, A., Safouris, A., Fischer, U., Kelly, P. J., Dawson, J., Katan, M., Katsanos, A. H., Lambadiari, V., Giannopoulos, S., Alexandrov, A. V., Siasos, G., & Tsivgoulis, G.
Affiliations
  • National and Kapodistrian University of Athens (GR)
  • Second Department of Neurology, “Attikon” University Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
  • University of Basel (CH)
  • University College Dublin (IE)
  • Queen Elizabeth University Hospital (GB)
  • Department of Neurology, University Hospital Basel, University of Basel, Basel, Switzerland
  • Population Health Research Institute (CA)
  • University of Tennessee Health Science Center (US)
Corresponding author
Tsivgoulis, Georgios
Venue
Therapeutic Advances in Neurological Disorders
Published
2024-01
Volume
17
Pages
17562864241281903-17562864241281903
ISSN
  • 1756-2856 (ISSN-L)
  • 1756-2864
OpenAlex
W4402890485
Cited by
36
References
49
Citations by year
2026: 14 · 2025: 21 · 2024: 1
FWCI
2.25
Type
journal article
Language
en
Open access
Locations
  • Therapeutic Advances in Neurological Disorders (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Topics
  • Health Sciences › Medicine › Pharmacology › Pharmacology and Obesity Treatment
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
Keywords
GLP-1 receptor agonists, tirzepatide, GIP/GLP-1 receptor agonist, major adverse cardiovascular events, cardiovascular mortality, all-cause mortality, myocardial infarction, stroke, anti-obesity drugs, obesity, overweight, non-diabetic adults, liraglutide, semaglutide, cardiovascular safety, neuroprotection

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