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Treatment with an FGF19 analogue aldafermin, previously known as NGM282, led to a significantly reduced liver fat content (LFC) in patients with nonalcoholic steatohepatitis (NASH), according to a study presented at ILC 2020.

Aldafermin significantly reduces liver fat in patients with NASH

Elaine Soliven
11 Sep 2020

Treatment with the FGF19 analogue aldafermin, previously known as NGM282, led to significantly reduced liver fat content (LFC) in patients with nonalcoholic steatohepatitis (NASH), according to a study presented at ILC 2020.

The researchers conducted a 24-week, double-blind, placebo-controlled, phase II (cohort 4) trial involving 77 patients with biopsy-proven NASH (NAFLD* activity score [NAS] of ≥4 points), stage 2 or 3 liver fibrosis, and absolute LFC of ≥8 percent. Participants were randomized to receive either subcutaneous aldafermin 1 mg (n=52; mean age 53.0 years, mean BMI 35.8 kg/m2) or placebo daily (n=25; mean age 54.1 years, mean BMI 36.8 kg/m2). [ILC 2020, abstract LBO01]

At week 24, patients treated with aldafermin achieved a statistically significant reduction in LFC from baseline, as measured by MRI-PDFF**, compared with placebo (-39.0 percent vs -13.0 percent; p=0.002).

In addition, a significantly higher percentage of patients on aldafermin achieved an LFC reduction of ≥5 percent (absolute reduction 68.0 percent vs 24.0 percent; p<0.001) and ≥30 percent (relative reduction 66.0 percent vs 29.0 percent; p=0.004) than those on placebo. “Consistent response on LFC [was observed] across cohorts 1–4,” said lead author Dr Stephen Harrison from the University of Oxford in Oxford, UK, and Pinnacle Clinical Research in San Antonio, Texas, US.

More patients in the aldafermin (n=50) vs placebo arm (n=22) experienced a ≥1 stage improvement in fibrosis with no worsening of NASH (38.0 percent vs 18.0 percent) and resolution of NASH without worsening of fibrosis (24.0 percent vs 9.0 percent) at week 24.

Overall, significantly more patients treated with aldafermin achieved both ≥1 stage improvement in fibrosis and NASH resolution compared with placebo at week 24 (22.0 percent vs 0.0 percent; p=0.015).

Significantly more patients treated with aldafermin than placebo also achieved a NAS reduction of ≥2 points with no worsening of fibrosis (62.0 percent vs 9.0 percent; p<0.001).

Among patients with stage 3 fibrosis, those treated with aldafermin had ≥1 stage improvement in fibrosis without worsening of NASH (30.0 percent vs 0.0 percent) and LFC reduction of ≥30 percent (46.0 percent vs 0.0 percent) compared with placebo.

A significant decrease from baseline in alanine aminotransferase (ALT) levels was observed in the aldafermin vs placebo arm at week 24 (-49.0 percent vs -6.0 percent; p<0.001; ALT levels decreased from 73 to 31 IU/L and from 55 to 49 IU/L in the aldafermin and placebo arms, respectively), which was near normal ALT levels, Harrison noted.

All NASH patients with cholesterol elevation of >10 points from baseline in either placebo or aldafermin arms (32 percent) were treated with rosuvastatin. The researchers found that those in the aldafermin arm showed a -3.0 percent reduction in 10-year ASCVD*** risk score, while the placebo arm only had a -1.0-percent reduction. Overall, the cardiovascular risk between the aldafermin and placebo arms was well managed, said Harrison.

Treatment-emergent adverse event (AE) rates were generally comparable between the aldafermin and placebo arms (86.8 percent vs 88.0 percent), with two serious AEs (rectal bleeding and liver biopsy procedure-related complication) occurring in the aldafermin arm. However, these were not considered treatment related by the site investigator.

“Ultimately, the primary endpoint was met,” noted Harrison. “Cohort 4 data [also] suggest that the histological effects previously observed at 12 weeks are durable and potentially amplified with extended treatment [of 24 weeks, with] … a favourable tolerability profile that appears to be safe and … well tolerated.”

“Clinically significant improvements in histology regulatory endpoints of fibrosis improvement, resolution of NASH, and the composite endpoint requiring achievement of both are very positive,” he highlighted.

 

*NAFLD: Nonalcoholic fatty liver disease

**MRI-PDFF: Magnetic resonance imaging-proton density fat fraction
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Most Read Articles
Pearl Toh, 02 Sep 2020
Proton beam radiotherapy (PBT) was noninferior to radiofrequency ablation (RFA) for local progression-free survival (LPFS) in patients with recurrent hepatocellular carcinoma (rHCC), in addition to showing a tolerable safety profile, according to the APROH trial presented during the 2020 digital ILC.
Elaine Soliven, 11 Sep 2020
Treatment with an FGF19 analogue aldafermin, previously known as NGM282, led to a significantly reduced liver fat content (LFC) in patients with nonalcoholic steatohepatitis (NASH), according to a study presented at ILC 2020.