KRYS Begins Dosing With Gene Therapy in Rare Eye Disease, Stock Up

Company Overview - Krystal Biotech (KRYS) announced the dosing of the first patient in a phase I/II study for its eye drop KB801, aimed at treating neurotrophic keratitis (NK), a rare corneal disease [1][7] - KB801 is a redosable gene therapy designed to enhance nerve growth factor (NGF) production in the eye, promoting corneal healing and preventing complications associated with NK [2][8] Market Context - NK affects an estimated 10 to 50 individuals per 100,000, with increasing awareness and diagnosis in the U.S.; claims for NK reached approximately 68,000 in 2024, up from 31,000 in 2020 [3] - Year-to-date, KRYS shares have declined by 5%, while the industry has seen a 2% decline [6] Clinical Development - The EMERALD-1 study is a double-masked, placebo-controlled trial evaluating the safety and tolerability of KB801 in up to 27 adults with NK [7][8] - This study represents a significant step towards providing a simple eye drop treatment option for patients with NK [8] Other Developments - In addition to KB801, Krystal Biotech is also advancing its phase III IOLITE study for KB803, another investigational eye drop treatment for corneal abrasions in dystrophic epidermolysis bullosa (DEB) [9] - The company's only marketed product, Vyjuvek, is FDA-approved for treating DEB in patients aged six months and older [10]