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Are sulphonylureas all the same? A cohort study on cardiovascular and cancer-related mortality

M Monami1, D Balzi, C Lamanna

  • 1Geriatric Unit, Department of Critical Care, University of Florence Medical School, Florence, Italy.

Diabetes/Metabolism Research and Reviews
|March 27, 2007
PubMed

Insights

Glibenclamide treatment in type 2 diabetes patients showed higher all-cause mortality and malignancy rates compared to gliclazide. Glibenclamide may also increase cardiovascular event risk in patients with pre-existing ischemic heart disease.

Area of Science:

  • Endocrinology
  • Cardiology
  • Pharmacology

Background:

  • Type 2 diabetes management involves various oral hypoglycemic agents.
  • Glibenclamide and gliclazide are commonly prescribed sulfonylureas.
  • Comparative safety and efficacy data are crucial for clinical decision-making.

Purpose of the Study:

  • To compare all-cause, cardiovascular, and non-cardiovascular mortality.
  • To assess cardiac morbidity between glibenclamide and gliclazide treated patients.
  • To evaluate the long-term safety profiles of these two antidiabetic drugs.

Main Methods:

  • Retrospective observational cohort study.
  • Involved 568 type 2 diabetes outpatients.
  • Utilized registry data for mortality and hospital discharge data for cardiac events.

Main Results:

  • Glibenclamide group had significantly higher all-cause mortality (4.3% vs 2.2% yearly).
  • Adjusted analysis revealed increased all-cause mortality (OR 2.1) and malignancy mortality (OR 3.6) with glibenclamide.
  • Glibenclamide was associated with cardiac events only in patients with prior ischemic heart disease.

Conclusions:

  • Glibenclamide use may be linked to elevated mortality from cardiovascular diseases and malignancies compared to gliclazide.
  • These findings suggest a potential differential risk profile between the two sulfonylureas.
  • Further prospective studies are warranted to confirm these safety concerns.
Abstract

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