Metformin beyond type 2 diabetes: Emerging and potential new indications

Area of Science:

• Pharmacology and Endocrinology
• Metabolic Diseases
• Oncology

Background:

• Metformin is a widely used medication primarily for type 2 diabetes.
• Its established benefits extend to polycystic ovarian syndrome, gestational diabetes, prediabetes prevention, and adjunct therapy in type 1 diabetes.
• Some current uses are off-label due to historical trial data predating modern evidence-based medicine standards.

Purpose of the Study:

• To review the established and emerging clinical applications of metformin beyond type 2 diabetes.
• To highlight ongoing research into metformin's repurposing for various conditions.
• To underscore the drug's long-standing clinical utility and future potential.

Main Methods:

• Review of existing clinical data and ongoing investigational studies.
• Analysis of metformin's mechanisms of action, including effects on insulin sensitivity and weight.
• Examination of evidence for both established and potential therapeutic indications.

Main Results:

• Metformin is clinically utilized for polycystic ovarian syndrome, gestational diabetes, prediabetes, and as an adjunct in type 1 diabetes.
• Emerging research investigates metformin for cancer prevention, renal protection, Alzheimer's disease, fatty liver disease, and healthy aging.
• Established uses are supported by long-term clinical experience, though some predate contemporary evidence-based medicine.

Conclusions:

• Metformin possesses a broad therapeutic spectrum extending significantly beyond type 2 diabetes management.
• Ongoing research continues to uncover novel applications, suggesting a substantial future role for metformin in diverse medical fields.
• The drug's established safety profile and multifaceted mechanisms support its continued investigation and clinical application.