UCB S.A.’s Rystiggo has won a US Food and Drug Administration green light to treat two major subtypes of generalized myasthenia gravis (gMG), making it the second human neonatal Fc receptor (FcRn) inhibitor to reach the market just after rival argenx N.V.’s Vyvgart.
UCB’s Rystiggo Becomes Second FcRn Inhibitor Treatment For gMG
Following FDA Approval
The Belgian firm’s Rystiggo may be the second drug of its class to win approval, but a broad label encompassing two major patient groups in generalized myasthenia gravis could set it apart as work starts for a launch later this year.
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