HTD1801 Demonstrates Promising Potential for Histologic Improvements in MASH in Both a Preclinical and Phase 2 Study.

Berberine ursodeoxycholate (HTD1801) has been shown to significantly reduce liver fat content (LFC) in an 18-week, placebo-controlled Phase 2 study in patients with metabolic dysfunction-associated steatohepatitis (MASH) and type 2 diabetes (T2DM). The purpose of this assessment was to establish proof of concept in liver histologic improvement with HTD1801 treatment based on preclinical and clinical evidence. The efficacy of HTD1801 was evaluated in a preclinical MASH/dyslipidemia model (golden hamsters fed a high fat diet, eight/group) after six weeks of daily treatment. Additionally, in a secondary analysis of a Phase 2 clinical study, 100 patients with presumed MASH were evaluated by multiple noninvasive markers associated with MASH resolution and/or fibrosis improvement. These include magnetic resonance imaging proton density fat fraction (MRI-PDFF; ≥30% LFC reduction), iron-corrected T1 (≥80 ms reduction), alanine aminotransferase (≥17 U/L reduction), weight loss (≥5% reduction), Fibrosis-4 index (shift to <1.3), and MASH Resolution Index (achieving ≥‑0.67). Preclinical findings in the MASH/dyslipidemia hamster model showed that HTD1801 significantly improved histologic fibrosis and the Nonalcoholic Fatty Liver Disease Activity Score to such a degree that improvements approximated the appearance of the normal controls. In the clinical study, 52% of HTD1801-treated patients achieved MRI response criteria compared to 24% of placebo (p<0.05). Dose-dependent improvements were observed across biomarkers, with more HTD1801-treated patients achieving response criteria associated with improvements in the histologic features of MASH. These findings suggest that HTD1801 has strong potential to produce histological improvements in patients with MASH.