Answer
Efgartigimod alfa is an engineered human IgG1 antibody fragment that binds with increased affinity to the neonatal Fc receptor (FcRn), reducing circulating IgG, including pathogenic IgG autoantibodies.
Sources for this answer
- Vyvgart 20 mg/mL concentrate for solution for infusionArgenx UK Ltd · emc · SmPC §5.1 Pharmacodynamic properties · Version 5Document updated
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