• Senthil K Palaniappan, Nan Nitra Than, Aung Win Thein, and Indra van Mourik.
• NHS trust, Department of Medicine, University Hospitals of Leicester, Leicester Royal Infirmary, Leicester, UK, LE1 5WW.
• Cochrane Db Syst Rev. 2020 Mar 30; 3: CD012056.

BackgroundCystic fibrosis is an autosomal recessive inherited defect in the cystic fibrosis transmembrane conductance regulator (CFTR) gene resulting in abnormal regulation of salt and water movement across the membranes. In the liver this leads to focal biliary fibrosis resulting in progressive portal hypertension and end-stage liver disease in some individuals. This can be asymptomatic, but may lead to splenomegaly and hypersplenism, development of varices and variceal bleeding, and ascites; it has negative impact on overall nutritional status and respiratory function in this population. Prognosis is poor once significant portal hypertension is established. The role and outcome of various interventions for managing advanced liver disease (non-malignant end stage disease) in people with cystic fibrosis is currently unidentified. This is an updated version of a previously published review.ObjectivesTo review and assess the efficacy of currently available treatment options for preventing and managing advanced liver disease in children and adults with cystic fibrosis.Search MethodsWe searched the Cochrane Cystic Fibrosis Trials Register, compiled from electronic database searches and handsearching of journals and conference abstract books. Date of last search: 19 November 2019. We also searched the reference lists of relevant articles and reviews and online trials registries. Date of last search: 01 January 2020.Selection CriteriaAny published and unpublished randomised controlled trials and quasi-randomised controlled trials of advanced liver disease in cystic fibrosis with cirrhosis or liver failure, portal hypertension or variceal bleeding (or both).Data Collection And AnalysisAuthors independently examined titles and abstracts to identify potentially relevant trials, but none were eligible for inclusion in this review.Main ResultsA comprehensive search of the literature did not identify any published eligible randomised controlled trials.Authors' ConclusionsIn order to develop the best source of evidence, there is a need to undertake randomised controlled trials of interventions for preventing and managing advanced liver disease in adults and children with cystic fibrosis.Copyright © 2020 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd.

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