argenx SE

ARGX: XBRU (BEL)

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Argenx: Positive Vyvgart Data in Autoimmune Indication Supports Growth; FB102 Broadens Portfolio

Rachel Elfman

Aug 18, 2026

Argenx announced positive top-line results from its phase 3 trial of Vyvgart in autoimmune myositis, or IIM, with the study meeting its primary endpoint at week 52 in the combined patient population of immune-mediated necrotizing myopathy and dermatomyositis. Shares soared 16% on Aug. 17.

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argenx SE

Argenx: Positive Vyvgart Data in Autoimmune Indication Supports Growth; FB102 Broadens Portfolio

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