The FDA issued its first stamp of approval for a cell or gene therapy back in 2017 to Novartis' Kymriah. | The gene therapy has already been approved to treat AADC deficiency in Europe and the U.K., among other countries,

Nov 13 (Reuters) - The U.S. Food and Drug Administration approved PTC Therapeutics' (PTCT.O), opens new tab gene therapy to treat a potential fatal enzyme deficiency disorder, the company said on Wednesday, sending its shares up about 2% in aftermarket trade.

PTC Therapeutics (NASDAQ:PTCT) has received FDA approval for its gene replacement therapy Kebilidi for the treatment of children and adults with AADC deficiency, a rare genetic disorder that impairs the ability to generate dopamine,

Kebilidi is the first gene therapy approved by the FDA for administration directly into the brain, given via a cannula during a surgical procedure, and replaces the human dopa decarboxylase (DDC) gene that is mutated in the disease, allowing dopamine synthesis to take place.