89bio announced that data from cohorts 1-6 in the the Phase 1b/2a proof-of-concept study evaluating pegozafermin for the treatment of nonalcoholic steatohepatitis was published online in The Lancet Gastroenterology & Hepatology. Study results showed statistically significant absolute reductions in hepatic fat fraction at week 13 with pegozafermin administered every week or every two weeks compared to placebo. Up to 88% of patients had at least a 30% reduction in hepatic fat fraction, which has been shown to correlate with reduced fibrosis progression. Furthermore, improvements in liver transaminases, measures of fibrosis and lipids were observed with pegozafermin compared to placebo. In this study, pegozafermin was well tolerated with no treatment-related serious adverse events observed. "Patients with NASH, a complex disease, are in urgent need of disease-modifying treatments that are effective in improving their overall liver health and address key underlying metabolic issues and cardiovascular disease risk factors," said Rohit Loomba MD, MHSc, Director, NAFLD Research Center, University of California San Diego, primary investigator of the Phase 1b/2a study and lead author of The Lancet Gastroenterology & Hepatology paper. "I am very encouraged by the published study results showing pegozafermin was highly potent in reducing liver fat and was associated with clinically meaningful changes in liver health and beneficial effects on lipids and cardiovascular markers. The benefits of pegozafermin were observed across all doses and most prominently at the highest tested doses."
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