Impact of GLP-1 Receptor Agonist Use in Patients With Steatotic Liver Disease and Type 2 Diabetes: A Retrospective Cohort Study

Background: Glucagon-like peptide 1 receptor agonists (GLP-1 RAs) help manage type 2 diabetes (T2DM) and may have efficacy in steatotic liver disease. Objective: To determine the prevalence and clinical impact of GLP-1 RA use in patients with T2DM and liver disease. Methods: This was a retrospective study of adult patients with T2DM and nonalcoholic fatty liver disease (NAFLD), nonalcoholic fatty liver (NAFL), or nonalcoholic steatohepatitis (NASH) between 1/1/21-12/31/21. Patients with hepatitis B or C, or on pioglitazone were excluded. Eligible patients treated with a GLP-1 RA were compared to controls. The primary outcome was change in Fibrosis-4 (FIB-4) score, with NAFLD Fibrosis Score (NFS) as a secondary outcome. Follow-up scores were calculated from labs within 3 to 15 months after baseline. Results: Of 242 eligible patients, 79 patients (32.6%) were treated with a GLP-1 RA. At baseline, FIB-4 score was lower and NFS was higher in the GLP-1 RA group vs controls (1.80 vs 2.33; P = .101, .36 vs −.47, P < .001; respectively). At follow up, FIB-4 score decreased to 1.77 in the GLP-1 RA group and increased to 2.71 in controls (P = .045). Follow up NFS was stable in the GLP-1 RA group and increased in the control group (.36 vs −.43; P = .308). Conclusion: Patients treated with GLP-1 RAs had less evidence of liver fibrosis progression compared to no treatment, although the differences were small. These results suggest that treatment with GLP-1 RAs may have clinical impact on slowing liver fibrosis, however results should be confirmed in a larger, more diverse sample.