The edition · Gastroenterology & Hepatology
Resmetirom worked as well in MASH patients carrying high-risk genotypes as in those without
A prespecified MAESTRO-NASH analysis finds no reason to genotype before prescribing. Also: a GnRH agonist for polycystic liver disease stopped early for side effects without shrinking livers, and how machine perfusion damps inflammation after liver transplantation.
The edition in brief
In a prespecified analysis of 738 genotyped, twice-biopsied patients in the phase 3 MAESTRO-NASH trial, resmetirom's effects on MASH resolution, fibrosis improvement, MRI-PDFF and biomarkers at 52 weeks were similar in carriers and non-carriers of high-risk PNPLA3, HSD17B13, TM6SF2, MTARC1 and MBOAT7 variants, alone or combined; the study was not powered for small interactions. In an open-label trial of 14 premenopausal women with severe polycystic liver disease, leuprorelin-induced menopause did not significantly slow liver growth (median 4.0% vs 11.0% a year, p = 0.15), did not improve quality of life, and caused far more adverse events (38 vs 9), so the trial was stopped. A mechanistic substudy of 47 extended-criteria liver transplants randomised to static cold storage, hypothermic oxygenated perfusion or normothermic perfusion found that both perfusion methods reduced neutrophil infiltration during early reperfusion injury.
Leuprorelin did not shrink polycystic livers and caused heavy menopausal side effects
Do not offer leuprorelin for polycystic liver disease; the trial showed no clear benefit and substantial harm.
Machine perfusion reduced neutrophil-driven inflammation in transplanted livers
Expect machine perfusion to feature more in transplanting marginal livers; this study explains part of its benefit.
Stage fibrosis in MASLD with FIB-4 first, then elastography
Use FIB-4 then elastography to find the MASLD patients with significant fibrosis who need specialist care.
Common MASH risk genotypes did not blunt the response to resmetirom
Prescribe resmetirom on fibrosis stage and licence criteria, not on genotype.
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