Oral Antidiabetic Agents and Cardiovascular Outcomes
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Updated: Feb 24, 2026

A Zebrafish Model of Diabetes Mellitus and Metabolic Memory
Published on: February 28, 2013
Manan Pareek1, Deepak L Bhatt2
1Brigham and Women's Hospital Heart & Vascular Center, Harvard Medical School, Boston, MA, United States; Cardiology Section, Department of Internal Medicine, Holbaek Hospital, Holbaek, Denmark; Department of Endocrinology, Odense University Hospital, Odense, Denmark.
Abstract:
Cardiovascular disease is the leading cause of morbidity and mortality among patients with type 2 diabetes; however, a direct protective effect of tight glycemic control remains unproven. In fact, until 2008, when concerns related to rosiglitazone prompted regulatory agencies to mandate assessment of cardiovascular safety of new antidiabetic agents, little was known about how these medications affected cardiovascular outcomes. Since then, there has been a considerable increase in the number of cardiovascular trials, which employ a noninferiority design and focus on high-risk populations to establish safety in the shortest time possible. In this article, we summarize the 4 major cardiovascular outcome trials of oral antidiabetic agents, completed so far. These include 3 dipeptidyl peptidase-4 inhibitors (saxagliptin, alogliptin, and sitagliptin) and 1 sodium-glucose cotransporter-2 inhibitor (empagliflozin). We briefly discuss potential mechanisms, limitations, and provide an overview of the ongoing studies in this field.
Insights
Tight glycemic control
Area of Science:
- Endocrinology
- Cardiology
- Pharmacology
Background:
- Cardiovascular disease (CVD) is a major complication in type 2 diabetes (T2D).
- The cardiovascular safety of oral antidiabetic agents is now a regulatory requirement.
- Previous understanding of antidiabetic drug cardiovascular effects was limited.
Purpose of the Study:
- To review major cardiovascular outcome trials (CVOTs) of oral antidiabetic agents.
- To summarize findings for dipeptidyl peptidase-4 inhibitors and sodium-glucose cotransporter-2 inhibitors.
- To discuss mechanisms, limitations, and future research directions.
Main Methods:
- Review of 4 completed cardiovascular outcome trials (CVOTs).
- Focus on trials involving dipeptidyl peptidase-4 inhibitors (saxagliptin, alogliptin, sitagliptin) and a sodium-glucose cotransporter-2 inhibitor (empagliflozin).
- Noninferiority trial designs in high-risk T2D populations.
Main Results:
- Summarized cardiovascular safety data from three DPP-4 inhibitors and one SGLT-2 inhibitor.
- Provided insights into the cardiovascular effects of these oral antidiabetic classes.
- Highlighted the importance of rigorous cardiovascular safety assessments.
Conclusions:
- Cardiovascular outcomes trials have increased our understanding of antidiabetic drug safety.
- Specific drug classes like SGLT-2 inhibitors show promise in managing cardiovascular risk in T2D.
- Ongoing research is crucial for further elucidating the role of these agents in T2D management.
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