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Combination of Rifaximin and Lactulose Improves Clinical Efficacy and Mortality in Patients With Hepatic Encephalopathy

Combination of Rifaximin and Lactulose Improves Clinical Efficacy and Mortality in Patients With Hepatic Encephalopathy

Zhida Wang, Pei Chu, Wenjin Wang

Drug Des Devel Ther. 2018 Dec 17;13:1-11.

PMID: 30587923

Abstract:

Background:
Rifaximin and lactulose are common effective agents for hepatic encephalopathy (HE). Whether a combination of rifaximin and lactulose improves the efficacy and mortality in patients with HE compared with lactulose alone needs to be analyzed.
Methods:
A systematic search was performed in electronic databases and other sources for possible studies focusing on combination therapy of rifaximin and lactulose for HE between January 2000 and February 2018. A meta-analysis was performed by the method recommended by the Cochrane Collaboration, and estimated effect size was presented as risk difference (RD), 95% CI, and the number needed to treat (NNT). Subgroup analysis, sensitivity analysis, and Trial Sequence Analysis were comprehensively performed to indicate the source of heterogeneity and risk of bias.
Results:
Five randomized and five observational studies involving 2,276 patients were included. Combination therapy had a significant advantage in both clinical efficacy increase (RD 0.26, 95% CI 0.19-0.32, NNT 5) and mortality decrease (RD -0.16, 95% CI -0.20-0.11, NNT 9) in overall analysis. In the pooled analysis of randomized studies, combination therapy showed similar results in clinical efficacy (RD 0.25, 95% CI 0.16-0.35, NNT 4) and mortality (RD -0.22, 95% CI -0.33-0.12, NNT 5). Compared with lactulose, hospital stay was also reduced in combination therapy, and there was no significant difference in treatment-related adverse events between the two groups.
Conclusion:
Combination of rifaximin and lactulose has beneficial effects on HE. Compared with lactulose alone, additional rifaximin increases clinical efficacy and decreases mortality. However, its effects on different types of HE are still uncertain.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP4618182-A	Lactulose		4618-18-2	Price

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