GSK has agreed to acquire efimosfermin alfa, a phase III-ready liver disease drug, from Boston Pharmaceuticals in a deal worth up to $2 billion.
GSK has agreed to acquire efimosfermin alfa from Boston Pharmaceuticals for $1.2 billion upfront, with potential additional milestone payments of $800 million, strengthening its hepatology pipeline.
Boston Pharmaceuticals' efimosfermin alfa demonstrated statistically significant fibrosis improvement in MASH patients, with 45.2% showing at least a one-stage improvement compared to 20.6% in the placebo group.
Efimosfermin alfa demonstrated statistically significant improvement in liver fibrosis without worsening of MASH compared to placebo over 24 weeks.
GSK has agreed to acquire Boston Pharmaceuticals' phase 3-ready liver disease candidate efimosfermin alfa for $1.2 billion upfront, with potential milestone payments bringing the total to $2 billion.