The edition · Gastroenterology & Hepatology
Resmetirom worked as well in MASH patients carrying high-risk genes as in those without
A prespecified MAESTRO-NASH analysis found no genotype that blunted response. Also: AASLD's expert view on when liver biopsy still earns its place, a stool microbiome signal for hospital admission in cirrhosis, and a pilot of personalised psychotherapy in IBS.
The edition in brief
Today's gastroenterology and hepatology edition closes on resmetirom and genetics. In a prespecified analysis of 738 patients with non-cirrhotic MASH and fibrosis from the phase 3 MAESTRO-NASH trial, the drug's effects on MASH resolution, fibrosis improvement, liver fat and biomarkers at 52 weeks were similar in carriers of high-risk PNPLA3, HSD17B13, TM6SF2, MTARC1 and MBOAT7 variants, individually or combined; the analysis was not powered for small differences. An AASLD expert practice opinion sets out the three roles that remain for liver biopsy — diagnosis, staging and guiding management — and compares percutaneous, transjugular and EUS-guided approaches. In 679 outpatients with cirrhosis across seven countries, 25% were admitted within 90 days; lower microbial diversity and 19 species were associated with admission, and adding microbiome data raised the AUC of a prediction model from 0.79 to 0.84. A 79-patient pilot of personalised EMDR or gut-directed hypnotherapy for IBS showed the approach was feasible but found no difference between personalised and reverse-personalised allocation. The pearl covers non-invasive fibrosis triage.
AASLD expert opinion: where liver biopsy still matters
Reserve liver biopsy for unclear diagnoses or discordant non-invasive results, and match the route to ascites, coagulation and endoscopy plans.
A stool microbiome signal added to admission prediction in cirrhosis
Treat the microbiome findings as research for now; focus on established admission risks and avoid unnecessary antibiotics and PPIs in cirrhosis.
Personalised psychotherapy for IBS was feasible, but personalising made no clear difference
Offer gut-directed hypnotherapy or CBT for refractory IBS; there is no evidence yet that personalising the choice helps.
FIB-4 first, elastography second, biopsy rarely
Triage fatty liver with FIB-4, then elastography if it is 1.3 or above, and refer high or indeterminate results.
No need to genotype before resmetirom: high-risk MASH genes did not blunt response
Do not delay or withhold resmetirom on the basis of MASH risk genotype; select patients by fibrosis stage.
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