Novel Drug & Emergent Therapeutics | Pharma |  Rare Diseases | Inborn Errors of Metabolism

FDA approves brain injection for L-amino acid decarboxylase (AADC) deficiency
 
 Time to read: 01:10

Published on MedED: 18 November  2024
Originally published: 24 September 2024
Source: FDA Press Release

Type of article: Novel Drug & Emergent Therapy News
MedED Catalogue Reference: MNDR003
Category: Rare Diseases
CrossreferenceInborn Errors of Mebolism
Category tags: RD, AADC, Injectables, gene therapy


 

 

Product Category        Product Name Company Status

Pharmaceuticals

Kebilidi
(eladocagene exuparvovec-tneq) 

PTC Therapeutics, Inc

FDA Approved

14 November 2024, FDA Press Release 
 
 
The U.S. Food and Drug Administration (FDA) has approved Kebilidi (eladocagene exuparvovec-tneq), a groundbreaking gene therapy for treating aromatic L-amino acid decarboxylase (AADC) deficiency. 
 
AADC, a rare genetic disorder, disrupts neurotransmitter production, resulting in developmental delays, weak muscle tone, and cognitive impairments. 
 
Kebilidi is the first FDA-approved gene therapy for AADC deficiency, receiving Priority Review, Orphan Drug designation, and a rare paediatric disease priority review voucher.
 
Administered through four infusions during a single brain surgery session, Kebilidi delivers a gene that restores AADC enzyme activity, boosting dopamine production. The treatment is restricted to specialized pediatric neurosurgical centers.
 
The safety and efficacy of Kebilidi were demonstrated in an open-label, single-arm clinical study involving 13 pediatric patients diagnosed with AADC deficiency. At baseline, all participants exhibited the most severe form of the condition, characterized by an absence of gross motor function and reduced AADC enzyme activity in the plasma.

Treated patients were compared to historical data from untreated individuals. By week 48 post-treatment, motor milestone assessments were available for 12 of the 13 participants. Improvements in gross motor function were observed in 8 of these 12 treated patients, a milestone not seen in untreated patients with severe AADC deficiency.
 
Common adverse effects include involuntary movements, fever, low blood pressure, and anaemia, while contraindications include immature skull development. 
 
This approval marks a significant milestone in gene therapy and offers new hope for patients and families affected by AADC deficiency.



Access Original Press Release
14 November 2024 FDA Approves First Gene Therapy for Treatment of Aromatic L-amino Acid Decarboxylase Deficiency

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