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New IMPACT Phase 2b Data Highlight Concurrent Improvements Across Multiple Non-Invasive Markers and qFibrosis-Measured Fibrosis Regression with Pemvidutide in MASH at EASL 2026

$ALTPress releaseMay 27, 2026, 8:00 AM ETRead the release

Altimmune presented new analyses from its IMPACT Phase 2b trial showing pemvidutide drives concurrent improvements in liver fat, inflammation, and fibrosis markers at 24 weeks. AI-based digital pathology using qFibrosis confirmed significant antifibrotic effects, with 68.6% of patients on the 1.2 mg dose achieving at least one stage of fibrosis regression versus 29.6% on placebo.

Key figures

Drug Name
pemvidutide
Phase Of Trial
Phase 2b
Enrollment count
212
Trial duration weeks
48
Analysis timepoint weeks
24
Fibrosis regression 1.2mg
68.6%
Fibrosis regression 1.8mg
54.5%
Fibrosis regression placebo
29.6%
Concurrent improvement 1.2mg
37.8%
Concurrent improvement 1.8mg
22.7%
Concurrent improvement placebo
8.3%

AI analysis

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    ALT: New IMPACT Phase 2b Data Highlight Concurrent Improvements Across Multiple Non-Invasive Markers and qFibrosis-Measured Fibrosis Regression with Pemvidutide in MASH at EASL 2026 — AI Analysis | Signal8