The European Association for the Study of the Liver (EASL) 2026 Congress opens in Barcelona on Wednesday May 27 and runs through Saturday May 30. The peptide-MASH slate is the most concentrated single-meeting hepatic data dump in 2026.
Novo Nordisk's ESSENCE Phase 3 program leads with semaglutide 2.4 mg liver-safety subgroup analyses including the dedicated Japanese MASH cohort and women-in-menopause subset, building on the August 2025 FDA MASH-with-fibrosis approval. Eli Lilly's retatrutide MASLD Phase 3 (NCT06859268) enrollment status updates anchor on the 86% Phase 2 liver-fat reduction baseline ahead of an H1 2027 topline. Boehringer Ingelheim's survodutide SYNCHRONIZE-1 Phase 3 MASH data is anticipated late 2026 — pre-EASL talks may give preview color. MetaVia's vanoglipel (DA-1241, GPR119 agonist) Phase 2a + resmetirom MASH combination work anchors the dual-mechanism MASH therapy thesis.
EASL 2026 lands two days before ASCO 2026 opens in Chicago on May 29 — the back-to-back conference schedule concentrates the most peptide-mechanism data of any week in 2026. Stories here cover trial readouts, regulatory milestones, and the broader cardiometabolic-peptide hepatic disease landscape. See #mash, #retatrutide, and #survodutide for adjacent threads.
EASL 2026 Day 1 in Barcelona delivered the most concentrated MASH-therapeutics data cycle of 2026. The peptide-mechanism cohort: Altimmune pemvidutide qFibrosis fibrosis regression (LBP-036), MetaVia DA-1726 48 mg Phase 1 noninvasive liver assessment, Novo Nordisk ESSENCE Japanese/menopausal subgroups. The non-peptide-mechanism cohort: Arrowhead ARO-INHBE RNAi (Activin E/ALK7 pathway), Galectin Therapeutics belapectin NAVIGATE (galectin-3 inhibitor), Sagimet Biosciences denifanstat + resmetirom combination (FASN inhibitor + Madrigal's Rezdiffra), Madrigal eight-poster Rezdiffra data drop on cardiovascular and portal hypertension markers. The combined cycle reframes MASH as a multi-mechanism battleground rather than a single-class indication — GLP-1/glucagon peptides compete against thyroid-hormone-receptor agonism, RNAi, galectin-3 inhibition, FASN inhibition, and emerging combinations. Thursday May 28 brings the Altimmune pemvidutide oral presentation at 17:00 CEST; Friday May 29 brings ASCO opening in Chicago to anchor the parallel peptide-oncology cycle.
Altimmune confirmed the IMPACT Phase 2b 48-week analysis on pemvidutide in MASH was selected as a 'Best of EASL 2026' abstract — the highest-tier curated designation at the European Association for the Study of the Liver Congress. The oral presentation is scheduled Thursday May 28 at 17:00 CEST in Barcelona, complementing the late-breaking fibrosis-regression poster Wednesday May 27 08:30 CEST. The 'Best of EASL' selection elevates pemvidutide relative to the broader MASH-peptide slate at the meeting (Novo Nordisk's ESSENCE semaglutide liver safety, Boehringer Ingelheim's survodutide SYNCHRONIZE-1 forward-look, Madrigal's Rezdiffra portal hypertension data) and is the meeting committee's editorial signal that the IMPACT Phase 2b data set is among the highest-impact contributions to the congress.
Altimmune presents IMPACT Phase 2b clinical trial data on pemvidutide in metabolic dysfunction-associated steatohepatitis (MASH) at the European Association for the Study of the Liver Congress 2026 (May 27-30 Barcelona). The randomized, placebo-controlled, double-blind Phase 2b trial enrolled 212 biopsy-confirmed MASH patients with fibrosis stages F2 or F3 (with and without diabetes), randomized 1:2:2 to weekly subcutaneous pemvidutide 1.2 mg, 1.8 mg, or placebo for 48 weeks. The late-breaking poster Wednesday May 27 at 08:30 CEST reports the AI-based Liver Explore quantitative digital pathology analysis showing significant reductions in proportionate areas of early, advanced, and total liver fibrosis at 24 weeks. The non-invasive PRO-C3:CTX-III ratio reduced consistent with fibrosis regression. Pemvidutide is a GLP-1/glucagon dual-action peptide with FDA Fast Track designation for MASH plus Breakthrough Therapy Designation. The approach competes directly with Boehringer Ingelheim's survodutide and Eli Lilly's retatrutide on the GLP-1/glucagon arm for MASH.
Madrigal Pharmaceuticals announced May 20 that multiple abstracts from its Rezdiffra (resmetirom) development and real-world evidence programs will be presented at EASL 2026 in Barcelona. Headline analyses include cardiovascular risk markers — secondary analysis of Phase 3 MAESTRO-NASH and MAESTRO-NAFLD-1 examining improvements in Lp(a), LDL-C, and ApoB — and portal hypertension risk improvement in compensated MASH cirrhosis (F4c) measured by ANTICIPATE-NASH risk scores. Real-world evidence and noninvasive biomarker analyses round out the slate. Rezdiffra (a thyroid hormone receptor β agonist, not a peptide) was approved March 2024 as the first FDA-approved MASH therapy for noncirrhotic MASH with F2-F3 fibrosis. The EASL data extend the case toward compensated MASH cirrhosis and cardiovascular outcomes — a competitive context for the GLP-1/glucagon peptide programs (semaglutide ESSENCE, pemvidutide IMPACT, survodutide SYNCHRONIZE-1, retatrutide MASLD Phase 3) running on parallel tracks.
Monday May 25 is the US Memorial Day federal holiday; SEC filings, FDA actions, US company press releases pause for the day. The week's news cycle picks up Tuesday with ASCO's embargoed virtual press briefing for credentialed media (a preview of Late-Breaking Abstracts ahead of the May 29 Annual Meeting opening in Chicago) and Wednesday with EASL 2026's opening in Barcelona. The combined Tuesday-Wednesday cycle delivers the most concentrated peptide-mechanism data of any week in 2026 — Altimmune pemvidutide IMPACT MASH, Novo Nordisk ESSENCE liver safety, Madrigal Rezdiffra portal hypertension data, Eli Lilly retatrutide MASLD Phase 3 status, and Boehringer survodutide SYNCHRONIZE-1 preview at EASL plus the peptide-oncology cohort at ASCO (Bicycle, Avacta, BriaCell, BioVaxys, Crinetics, Sapience, Corbus). The Hepcludex approval Friday plus the EASL plus ASCO double-meeting structure makes this the highest-volume peptide-news week of 2026 to date.
The Memorial Day week landing pad in the medical-conference calendar is unusually peptide-heavy. Monday May 25 is the US Memorial Day federal holiday. EASL 2026 (European Association for the Study of the Liver) opens Wednesday May 27 in Barcelona running through Saturday May 30, with Novo Nordisk's ESSENCE Phase 3 liver-safety analyses, Eli Lilly's retatrutide MASLD Phase 3 enrollment status, Boehringer survodutide SYNCHRONIZE-1 forward-look, and MetaVia vanoglipel + resmetirom MASH preclinical work anchoring the peptide-relevant program. ASCO 2026 (American Society of Clinical Oncology) opens Friday May 29 in Chicago running through Tuesday June 2 with the peptide-oncology slate landing across all five days. Combined, the two meetings concentrate the most peptide-mechanism data of any week in 2026 — MASH plus oncology back-to-back. Practitioner press will be split across the two meetings.
The European Association for the Study of the Liver (EASL) Congress 2026 opens Wednesday May 27 in Barcelona with a heavy peptide-MASH slate. Novo Nordisk's ESSENCE Phase 3 program leads with liver-safety subgroup analyses (Japanese MASH cohort, women in menopause), building on the August 2025 FDA approval of semaglutide for MASH-with-fibrosis. Eli Lilly's retatrutide MASLD Phase 3 (NCT06859268) is enrolling on the 86% Phase 2 liver-fat reduction baseline. Boehringer Ingelheim survodutide SYNCHRONIZE-1 Phase 3 MASH data is expected late 2026 with positive results potentially establishing the GLP-1/glucagon dual agonist as standard of care alternative to semaglutide. MetaVia's vanoglipel (DA-1241, GPR119 agonist) Phase 2a + resmetirom combination work presented at ECO 2025 anchors the combination-MASH therapy thesis. The EASL plenaries plus the May 21 TRIUMPH-1 readout reframe MASH as a peptide-mechanism battleground rather than a single-drug indication.
Eight days ahead of EASL Congress 2026 in Barcelona (May 27-30), Novo Nordisk released new analyses from the Phase 3 ESSENCE program showing semaglutide 2.4 mg holds a favorable hepatic safety profile across MASH subgroups, including the first dedicated Japanese MASH cohort and a women-in-menopause subset. Gastrointestinal events remained the leading adverse-event signal, with small discontinuation rates. MASH affects an estimated 250 million people globally with roughly 9 in 10 cases undiagnosed; the trial data reinforce the FDA's August 2025 MASH-with-fibrosis approval and broaden the prescribing case ahead of the EASL plenaries.