HuidaGene Gets Rare Pediatric Drug Status

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FDA has granted HuidaGene Therapeutics a rare pediatric disease designation (RPDD) for HG004 and its use in treating inherited retinal disease caused by RPE65 mutations. Inherited retinal disease is described by the company as a group of rare blinding conditions caused by mutations in any 1 of more than 250 genes.

“Leber’s congenital amaurosis (LCA), severe early childhood-onset retinal dystrophy (SECORD), early-onset severe retinal dystrophy (EOSRD), and retinitis pigmentosa (RP), which may all be grouped under the heading of inherited retinal disease caused by RPE65 mutations (RPE65-IRD), are considered to represent a phenotypic continuum of the same disease,” it says. “The RPE65-IRD with a typical onset between birth and five years of age exhibits several common clinical findings, chiefly night blindness, progressive loss of visual fields, and loss of central vision.  Given the often severe and early visual loss associated with RPE65-IRD, other areas of development, including speech, social skills, and behavior, may also be delayed.”

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