Metformin beyond type 2 diabetes: Emerging and potential new indications

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Abstract

Metformin is best known as a foundational therapy for type 2 diabetes but is also used in other contexts in clinical medicine with a number of emerging and potential indications. Many of its beneficial effects may be mediated by modest effects on weight loss and insulin sensitivity, but it has multiple other known mechanisms of action. Current clinical uses beyond type 2 diabetes include: polycystic ovarian syndrome; diabetes in pregnancy/gestational diabetes; prevention of type 2 diabetes in prediabetes; and adjunct therapy in type 1 diabetes. As metformin has been in clinical use for almost 70 years, much of the underpinning evidence for its use in these conditions is, by definition, based on trials conducted before the advent of contemporary evidence-based medicine. As a result, some of the above-established uses are ‘off-label’ in many regulatory territories and their use varies accordingly in different countries. Going forward, several current ‘repurposing’ investigational uses of metformin are also being investigated: prevention of cancer (including in Li Fraumeni syndrome), renal protection, Alzheimer's disease, metabolic dysfunction-associated steatotic liver disease and promotion of healthy ageing. Despite the longevity of metformin and its important current roles beyond type 2 diabetes in clinical medicine, it has further potential and much research is ongoing.

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CITATION STYLE

APA

Petrie, J. R. (2024). Metformin beyond type 2 diabetes: Emerging and potential new indications. Diabetes, Obesity and Metabolism, 26(S3), 31–41. https://doi.org/10.1111/dom.15756

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