• 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.
• Efimosfermin, a phase III-ready FGF21 analog, has shown promising results in reversing liver fibrosis in patients with metabolic dysfunction-associated steatohepatitis (MASH), with a convenient once-monthly dosing regimen.
• Steatotic liver disease affects approximately 5% of the global population with limited treatment options, and interventions that reduce fibrosis could save the US healthcare system between $40-100 billion over the next two decades.