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UCB: US Approval of Kygevvi in Ultra-Rare Disease Helps Expand Portfolio Amid Generic Pressure

Rachel Elfman

Dec 3, 2025

UCB received approval from the US Food and Drug Administration for Kygevvi, for adults and children living with thymidine kinase 2 deficiency, a rare genetic mitochondrial disease that causes muscle weakness.

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UCB SA

UCB: US Approval of Kygevvi in Ultra-Rare Disease Helps Expand Portfolio Amid Generic Pressure

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