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Ultragenyx’s gene therapy for rare metabolic disorder secures US FDA nod

By Thomson Reuters Aug 19, 2026 | 4:33 PM

Aug 19 (Reuters) – The U.S. Food and Drug Administration approved Ultragenyx Pharmaceutical’s gene ​therapy to treat a ‌rare metabolic disorder, the company said on Wednesday.

The drug, branded as Genglycos, is approved for ‌glycogen ​storage disease ⁠type Ia (GSDIa), also ⁠known as Von Gierke disease, a rare genetic disorder that impairs the body’s ability ​to release glucose from stored glycogen, causing dangerously ⁠low blood sugar ⁠levels.

Ultragenyx’s Genglycos is ​the first FDA-approved therapy to ​address the underlying cause of ‌the inherited disorder, which affects 1 in 100,000 infants in the United States, ⁠according to National Institutes of Health data.

Several experimental treatments are also in ⁠development, ‌including those from ⁠Moderna and Beam Therapeutics, ​though ‌the candidates remain ​in early ⁠stages of clinical testing.

(Reporting by Padmanabhan Ananthan and Sneha S K in Bengaluru; Editing by Leroy Leo and ​Shinjini Ganguli)