U.S. FDA Approves KYGEVVI, the First and Only Treatment for Ultra-Rare Mitochondrial Disease TK2d

UCB News

The U.S. FDA granted approval to KYGEVVI for treating adults and children with Thymidine Kinase 2 Deficiency (TK2d), an ultra-rare, life-threatening mitochondrial disease. Developed by UCB, KYGEVVI is the first and only approved therapy for TK2d, demonstrating a profound 86% reduction in the risk of death and significant improvement in motor function for patients with early-onset disease.