GSK’s efimosfermin wins FDA/EMA priority designations

27 April 2026

UK pharma major GSK (LSE: GSK) today announced that efimosfermin, a once-monthly investigational liver therapy, has been granted Breakthrough Therapy designation by the US Food and Drug Administration (FDA) and Priority Medicines (PRIME) designation by the European Medicines Agency (EMA) for the treatment of metabolic dysfunction-associated steatohepatitis (MASH).

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