The effects of hydroxychloroquine on insulin sensitivity, insulin clearance and inflammation in insulin‐resistant adults: A randomized trial
Open Access
- 2 February 2021
- journal article
- research article
- Published by Wiley in Diabetes, Obesity and Metabolism
- Vol. 23 (6), 1252-1261
- https://doi.org/10.1111/dom.14333
Abstract
Aim To determine the effect of hydroxychloroquine (HCQ) on skeletal muscle and liver insulin sensitivity, insulin clearance, inflammation and adipokines. Methods Insulin‐resistant adults without rheumatic disease were randomized to 13 weeks of HCQ (400 mg/day) versus placebo (double‐blinded). Primary outcomes were changes in skeletal muscle and liver insulin sensitivity assessed by hyperinsulinaemic‐euglycaemic clamp and stable‐isotope tracer methods. Secondary outcomes included insulin clearance, inflammation biomarkers and adipokines. Results Compared with placebo, HCQ significantly improved skeletal muscle insulin sensitivity by 26% (p = .019) and enhanced systemic glucose clearance (p = .025). By contrast, HCQ had no effect on hepatic insulin sensitivity. HCQ did not affect insulin clearance but decreased circulating IL‐6 (p = .01) and increased adiponectin (p = .045). There were no effects on leptin, RBP‐4, FGF‐21 or C‐reactive protein. Conclusions HCQ selectively enhances insulin sensitivity and glucose disposal in skeletal muscle, without affecting hepatic insulin sensitivity or insulin clearance. These findings offer a mechanistic explanation for the antidiabetic properties of HCQ and suggest that this medication might be useful in conditions linked to insulin resistance such as type 2 diabetes.Funding Information
- American Diabetes Association
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