2021 approved Efgartigimod (Vyvgart) for myasthenia gravis: (binds neonatal Fc receptor, stops Ig recirculation): pts w/ AChR Abs respond best (68% vs 30%). Common AEs include URI, UTI, HA; other AE: eyelid swelling, rash, and SOB. https://t.co/wQKZuAlXoR