Empagliflozin is associated with improvements in liver enzymes potentially consistent with reductions in liver fat: results from randomised trials including the EMPA-REG OUTCOME® trial
Abstract
AIMS/HYPOTHESIS: In addition to beneficial effects on glycaemia and cardiovascular death, empagliflozin improves adiposity indices. We investigated the effect of empagliflozin on aminotransferases (correlates of liver fat) in individuals with type 2 diabetes.
METHODS: Changes from baseline alanine aminotransferase (ALT) and aspartate aminotransferase (AST) were assessed in the EMPA-REG OUTCOME® trial (n = 7020), pooled data from four 24-week placebo-controlled trials (n = 2477) and a trial of empagliflozin vs glimepiride over 104 weeks (n = 1545). Analyses were performed using data from all participants and by tertiles of baseline aminotransferases.
RESULTS: In the EMPA-REG OUTCOME® trial, mean ± SE changes from baseline ALT at week 28 were -2.96 ± 0.18 and -0.73 ± 0.25 U/l with empagliflozin and placebo, respectively (adjusted mean difference: -2.22 [95% CI -2.83, -1.62]; p < 0.0001). Reductions in ALT were greatest in the highest ALT tertile (placebo-adjusted mean difference at week 28: -4.36 U/l [95% CI -5.51, -3.21]; p < 0.0001). The adjusted mean difference in change in ALT was -3.15 U/l (95% CI -4.11, -2.18) with empagliflozin vs placebo at week 24 in pooled 24-week data, and -4.88 U/l (95% CI -6.68, -3.09) with empagliflozin vs glimepiride at week 28. ALT reductions were largely independent of changes in weight or HbA1c. AST changes showed similar patterns to ALT, but the reductions were considerably lower.
CONCLUSIONS/INTERPRETATION: These highly consistent results…
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design. Reported size: 7,020 participants or records.
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