Cited by 2,577Diabetes Treatment and ManagementDiabetes, Cardiovascular Risks, and LipoproteinsHeart Failure Treatment and Management

Effect of Sitagliptin on Cardiovascular Outcomes in Type 2 Diabetes

Open access
Green, Jennifer B., Bethel, M. Angelyn, Armstrong, Paul W., Buse, John B., Engel, Samuel S., Garg, Jyotsna, Josse, Robert, Kaufman, Keith D. +11 more·2015·New England Journal of Medicine

Abstract

BACKGROUND: Data are lacking on the long-term effect on cardiovascular events of adding sitagliptin, a dipeptidyl peptidase 4 inhibitor, to usual care in patients with type 2 diabetes and cardiovascular disease. METHODS: In this randomized, double-blind study, we assigned 14,671 patients to add either sitagliptin or placebo to their existing therapy. Open-label use of antihyperglycemic therapy was encouraged as required, aimed at reaching individually appropriate glycemic targets in all patients. To determine whether sitagliptin was noninferior to placebo, we used a relative risk of 1.3 as the marginal upper boundary. The primary cardiovascular outcome was a composite of cardiovascular death, nonfatal myocardial infarction, nonfatal stroke, or hospitalization for unstable angina. RESULTS: During a median follow-up of 3.0 years, there was a small difference in glycated hemoglobin levels (least-squares mean difference for sitagliptin vs. placebo, -0.29 percentage points; 95% confidence interval [CI], -0.32 to -0.27). Overall, the primary outcome occurred in 839 patients in the sitagliptin group (11.4%; 4.06 per 100 person-years) and 851 patients in the placebo group (11.6%; 4.17 per 100 person-years). Sitagliptin was noninferior to placebo for the primary composite cardiovascular outcome (hazard ratio, 0.98; 95% CI, 0.88 to 1.09; P<0.001). Rates of hospitalization for heart failure did not differ between the two groups (hazard ratio, 1.00; 95% CI, 0.83 to 1.20; P=0.98). There were no significant between-group differences in rates of acute pancreatitis (P=0.07) or pancreatic cancer (P=0.32). CONCLUSIONS: Among patients with type 2 diabetes and established cardiovascular disease, adding sitagliptin to usual care did not appear to increase the risk of major adverse cardiovascular events, hospitalization for heart failure, or other adverse events. (Funded by Merck Sharp & Dohme; TECOS ClinicalTrials.gov number, NCT00790205.).

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Crossref · 10.1056/nejmoa1501352

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  • Other trials in high-risk type 2 diabetes patients showed similar glycemic control effects but without significant benefits for cardiovascular events or death.

    “There are a number of other trials regarding cardiovascular outcomes in high-risk cohorts of patients with type 2 diabetes in which similar magnitude effects on glycemic control have been shown but without significant benefits with respect to rates of cardiovascular events or death.”

    From Liraglutide and Cardiovascular Outcomes in Type 2 Diabetes (2016) · cites this paper as [17]

    The Results (p. 1) report a small improvement in glycated hemoglobin with sitagliptin and no reduction in the primary cardiovascular outcome; Other Secondary Outcomes (p. 4) report no significant difference in deaths. The Discussion (p. 8) also says two other DPP-4 inhibitor trials found no reduction in major adverse cardiovascular events. It does not establish that those other trials had similar-magnitude glycemic effects or no mortality benefit. (LLM, conf=0.85)

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  • DPP4 inhibitors exhibit cardiovascular neutrality in T2DM patients.

    “have shown that DPP4i exhibit cardiovascular neutrality in T2DM patients.”

    From The effect of <scp>GLP</scp> ‐1 receptor agonists on circulating inflammatory markers in type 2 diabetes patients: A systematic review and meta‐analysis (2025) · cites this paper as [136]

    The Discussion (p. 8) reports no change in major adverse cardiovascular events with sitagliptin and says trials of two other DPP-4 inhibitors likewise found no increase or decrease in those events. But it also reports increased heart-failure hospitalization with saxagliptin, so unqualified cardiovascular neutrality for the class overstates the evidence. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Evidence that glucose lowering reduces the rates of cardiovascular events and death has not been convincingly shown.

    “Evidence that glucose lowering reduces the rates of cardiovascular events and death has not been convincingly shown, 4-6”

    From Empagliflozin, Cardiovascular Outcomes, and Mortality in Type 2 Diabetes (2015) · cites this paper as [4]

    The Results (p. 1) report that sitagliptin lowered glycated hemoglobin but did not reduce the primary cardiovascular outcome; Other Secondary Outcomes (p. 4) show no reduction in death from any cause. These findings support the lack of a demonstrated benefit for sitagliptin in this trial, but do not establish the broader claim about glucose lowering generally. (LLM, conf=0.83)

    Experimental — accuracy not yet measured
  • Across trials of DPP-4 inhibitors, there appears to be no interaction by age-group.

    “Across the trials of this drug class, there appears to be no interaction by age-group (110-112).”

    From 13. Older Adults: <i>Standards of Care in Diabetes—2024</i> (2024) · cites this paper as [111]

    The Statistical Analysis section (p. 3) lists age at randomization among the prespecified subgroups, and Subgroup Analyses (p. 6) reports no significant interaction apart from body-mass index. That supports the age-group point for this sitagliptin trial, but the paper does not establish an absence of age-group interaction across trials of DPP-4 inhibitors. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • EXAMINE, TECOS, and CARMELINA did not find a significant increase in risk of heart failure hospitalization with DPP-4 inhibitor use compared with placebo.

    “However, three other cardiovascular outcomes trials-Examination of Cardiovascular Outcomes with Alogliptin versus Standard of Care (EXAMINE) (293), Trial Evaluating Cardiovascular Outcomes with Sitagliptin (TECOS) (294), and the Cardiovascular and Renal Microvascular Outcome Study With Linagliptin (CARMELINA) (295)-did not find a significant increase in risk of heart failure hospitalization with D”

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Research works printed but not linked: 2

  1. [4]4. cardiovascular outcomes in patients with or at risk for type 2 diabetes: a meta-analysis of randomised controlled trials. Lancet Diabetes Endocrinol 2015; 3: 356-66.
  2. [17]17. Bethel MA, Green JB, Milton J, et al. Regional, age and sex differences in baseline characteristics of patients enrolled in the Trial Evaluating Cardiovascular Outcomes with Sitagliptin (TECOS). Diabetes Obes Metab 2015; 17: 395-402. Copyright © 2015 Massachusetts Medical Society. Yellow Weaver, South Africa <!-- image --> Jed Rosenthal, M.D. n engl j med 373;3 nejm.org july 16, 2015

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Authors
Green, J. B., Bethel, M. A., Armstrong, P. W., Buse, J. B., Engel, S. S., Garg, J., Josse, R., Kaufman, K. D., Koglin, J., Korn, S., Lachin, J. M., McGuire, D. K., Pencina, M. J., Standl, E., Stein, P. P., Suryawanshi, S., Van de Werf, F., Peterson, E. D., & Holman, R. R.
Affiliations
  • University of North Carolina at Chapel Hill (US)
  • University of Oxford (GB)
  • University of Alberta (CA)
  • Merck & Co., Inc., Rahway, NJ, USA (United States) (US)
  • Duke University (US)
  • St. Michael's Hospital (CA)
  • George Washington University (US)
  • The University of Texas Southwestern Medical Center (US)
  • Helmholtz Munich (DE)
Venue
New England Journal of Medicine
Published
2015-07-16
Volume
373
Issue
3
Pages
232-242
ISSN
  • 0028-4793 (ISSN-L)
  • 1533-4406
OpenAlex
W2142830692
Cited by
2,577
References
16
Citations by year
2026: 68 · 2025: 121 · 2024: 120 · 2023: 139 · 2022: 170 · 2021: 210 · 2020: 289 · 2019: 267 · 2018: 343 · 2017: 343 · 2016: 378 · 2015: 120 · 2014: 2
FWCI
341.75
Type
journal article
Language
en
Open access
Locations
  • New England Journal of Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (acceptedVersion, cc-by-nc-nd)
  • Carolina Digital Repository (University of North Carolina at Chapel Hill) (submittedVersion)
  • CINECA IRIS Institutial research information system (University of Pisa) (submittedVersion, other-oa)
  • ENLIGHTEN (Jurnal Bimbingan dan Konseling Islam) (submittedVersion)
  • Nova Science Publishers (Nova Science Publishers, Inc.) (submittedVersion)
  • IRIS Research product catalog (Sapienza University of Rome) (submittedVersion)
  • Lithuanian University of Health Sciences (submittedVersion)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (submittedVersion)
  • VUBIR (Vrije Universiteit Brussel) (submittedVersion)
  • UNC Libraries
Funders
South Australian Health and Medical Research Institute
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Heart Failure Treatment and Management
Keywords
sitagliptin, type 2 diabetes, cardiovascular disease, DPP-4 inhibitors, major adverse cardiovascular events, heart failure hospitalization, acute pancreatitis, pancreatic cancer, HbA1c, glycemic control, non-inferiority
MeSH terms
Sitagliptin Phosphate, Administration, Oral, Cardiovascular Diseases, Diabetes Mellitus, Type 2, Double-Blind Method, Drug Therapy, Combination, Follow-Up Studies, Heart Diseases, Heart Failure, Glycated Hemoglobin, Hospitalization, Humans, Hypoglycemic Agents, Pyrazines, Triazoles, Kaplan-Meier Estimate

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