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Arrowhead Pharmaceuticals Presents New Clinical Data on RNAi-based Obesity and MASH Candidate ARO-INHBE at EASL 2026

$ARWRPress releaseMay 27, 2026, 7:00 AM ETRead the release

Arrowhead presented interim Phase 1/2a data for ARO-INHBE at EASL 2026, showing a 44% placebo-adjusted reduction in liver fat content in obese patients with baseline liver fat >8%. The RNAi therapy also demonstrated dose-dependent Activin E reductions of up to 85.3% and enhanced visceral fat reduction when combined with low-dose tirzepatide.

Key figures

Drug Name
ARO-INHBE
Phase Of Trial
Phase 1/2a
Study population size
78
Activin e reduction max
85.3%
Liver fat reduction placebo adjusted
44%

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