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Summary
Phenformin improved diabetes control in insulin-treated patients, significantly lowering blood sugar levels and reducing variability. Some patients experienced hypoglycemia and reduced insulin dosage.
Area of Science:
- Endocrinology
- Metabolic Diseases
Background:
- Diabetes mellitus management requires effective glycemic control.
- Insulin therapy is common, but optimizing blood glucose stability remains a challenge.
Purpose of the Study:
- To evaluate the efficacy of phenformin in improving glycemic control in diabetic patients on insulin.
- To assess the impact of phenformin on insulin dosage and blood sugar variability.
Main Methods:
- A double-blind, placebo-controlled, cross-over trial was conducted.
- Forty-one insulin-treated diabetic patients received phenformin (100mg daily) or placebo for six weeks each.
Main Results:
- Phenformin significantly decreased blood sugar levels and reduced weekly blood sugar variability.
- Eleven patients required insulin reduction due to hypoglycemia, averaging a 20% decrease.
- No significant changes were observed in ketosis, cholesterol, or body weight.
Conclusions:
- Phenformin demonstrates efficacy in enhancing glycemic control for diabetic patients on insulin.
- It can lead to reduced insulin requirements in a subset of patients, without adverse effects on weight or lipids.