Role of rifaximin in the management of alcohol‐associated hepatitis: A systematic review and meta‐analysis

Abstract

Background and Aim Alcohol‐associated hepatitis (AAH) is an acute, inflammatory liver disease with severe short‐term and long‐term morbidity and mortality. AAH can lead to severe complications including hepatic failure, gastrointestinal bleeding, sepsis, and the development or decompensation of cirrhosis. Rifaximin is an antibiotic that reduces bacterial overgrowth and gut translocation, and it may have a role in decreasing systemic inflammation and infection in patients with AAH. Therefore, we conducted a systematic review and meta‐analysis to evaluate the role of rifaximin in the management of AAH. Methods A comprehensive search strategy was used to identify studies that met our inclusion criteria in Embase, MEDLINE (PubMed), Cochrane Library, Web of Science Core Collection, and Google Scholar. Outcomes of interest included rates of infection, 90‐day mortality, and overall mortality between the rifaximin versus non‐rifaximin group. Open Meta Analyst software was used to compute the results. Results Three studies with a total of 162 patients were included in the final meta‐analysis. Of the three studies, two were randomized control trials (RCTs), and one was a case–control study. There was a significantly lower rate of infection in the rifaximin group versus the non‐rifaximin group (RR: 0.331, 95% CI: 0.159–0.689, I2 = 0%, P = 0.003). There was no significant difference in 90‐day mortality in the rifaximin versus non‐rifaximin group (RR: 0.743, 95% CI: 0.298–1.850, I2 = 24%, P = 0.523), nor was there a significant difference in overall mortality (RR: 0.624, 95% 95% CI: 0.299–1.3, I2 = 7.1%, P = 0.208). Conclusions The use of rifaximin in AAH is associated with a lower rate of infection rate than the non‐rifaximin group. Additional research is needed to determine whether this effect is more pronounced in patients concurrently being treated with prednisolone. Differences in 90‐day or overall mortality did not reach statistical significance. Further studies, particularly large randomized controlled trials, are needed to establish the role of rifaximin in AAH, especially as an adjunct therapy with prednisolone.

ACG Clinical Guideline: Alcohol-Associated Liver Disease

“…Studies on the use of prophylactic antibiotics in patients with AH have not shown promise for mortality benefit. In a placebo-controlled trial, rifaximin use for 90 days in patients with AH safely reduced infections (0.29 vs 0.62 infections/patient) and liver-related complications (0.43 vs 1.26 complications/patient) and showed a trend for lower 90-day mortality compared with the control arm (184,185). However, a 7-day course of oral vancomycin, gentamycin, and meropenem in 14 patients with AH showed no 90-day survival benefit compared with a reference group of patients with AH receiving standard of care (186).…”