Effect of NGM282, an FGF19 analogue, in primary sclerosing cholangitis: a multicenter, randomized, double-blind, placebo-controlled phase II trial

Gideon M. Hirschfield, Olivier Chazouillères, Joost P. Drenth, Douglas Thorburn, Stephen A. Harrison, Charles S. Landis, Marlyn J. Mayo, Andrew J. Muir, James F. Trotter, Diana J. Leeming, Morten A. Karsdal, Mark J. Jaros, Lei Ling, Kathline H. Kim, Stephen J. Rossi, Ransi M. Somaratne, Alex M. Depaoli, Ulrich Beuers

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Background & Aims: Primary sclerosing cholangitis (PSC) is an inflammatory, cholestatic and progressively fibrotic liver disease devoid of effective medical intervention. NGM282, an engineered, non-tumorigenic FGF19 analogue, potently regulates CYP7A1-mediated bile acid homeostasis. We assessed the activity and safety of NGM282 in patients with PSC. Methods: In this double-blind, placebo-controlled phase II trial, 62 patients who had PSC confirmed by cholangiography or biopsy and an elevated alkaline phosphatase (ALP) >1.5 × the upper limit of normal were randomly assigned 1:1:1 to receive NGM282 1 mg, 3 mg or placebo once daily for 12 weeks. The primary outcome was the change in ALP from baseline to week 12. Secondary and exploratory outcomes included changes in serum biomarkers of bile acid metabolism and fibrosis. Efficacy analysis was by intention-to-treat. Results: At 12 weeks, there were no significant differences in the mean change from baseline in ALP between the NGM282 and placebo groups, and therefore, the primary endpoint was not met. However, NGM282 significantly reduced levels of 7alpha-hydroxy-4-cholesten-3-one (a marker of hepatic CYP7A1 activity, LS mean differences −6.2 ng/ml (95% CI −10.7 to −1.7; p = 0.008) and −9.4 ng/ml (−14.0 to −4.9; p <0.001) in the NGM282 1 mg and 3 mg groups, respectively, compared with placebo) and bile acids. Importantly, fibrosis biomarkers that predict transplant-free survival, including Enhanced Liver Fibrosis score and Pro-C3, were significantly improved following NGM282 treatment. Most adverse events were mild to moderate in severity, with gastrointestinal symptoms more frequent in the NGM282 treatment groups. Conclusions: In patients with PSC, NGM282 potently inhibited bile acid synthesis and decreased fibrosis markers, without significantly affecting ALP levels.
Original languageEnglish
JournalJournal of Hepatology
Early online date9 Nov 2018
Publication statusE-pub ahead of print - 9 Nov 2018


  • FGF19
  • alkaline phosphatase
  • collagen
  • fibrogenesis
  • enhanced liver fibrosis
  • Pro-C3


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