Krystal Biotech gains FDA approval for its rare skin-disorder gene therapy Vyjuvek

22 May 2023
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The US Food and Drug Administration on Friday approved Vyjuvek (beremagene geperpavec-svdt), a herpes-simplex virus type 1 (HSV-1) vector-based gene therapy, for the treatment of wounds in patients six months and older with dystrophic epidermolysis bullosa (DEB) with mutation(s) in the collagen type VII alpha 1 chain (COL7A1) gene. Kids with the illness are called “butterfly children.”

Vyjuvek is Krystal Biotech’s (Nasdaq: KRYS) first approved product, and the company expects it to be available by this year’s third quarter. News of the approval pushed the firm’s shares up almost 10% to $96.06.

The company says it will begin the promotion of the therapy immediately. Sell-side consensus from Evaluate Pharma has previously forecasts 2026 sales of Vyjuvek at $462 million

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