Description
GGF2 is a recombinant human neuregulin-1 in development for chronic heart failure. Phase 1 clinical trials of GGF2 were put on hold when transient elevations in serum aminotransferases and total bilirubin were observed in 2 of 43 subjects receiving GGF2. However, aminotransferase elevations were modest and not typical of liver injury sufficient to result in elevated serum bilirubin. Several translational approaches were used to understand the liver response associated with GGF2.