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Category: Gene Therapy

FDA Approves First-Ever siRNA Therapy

Today FDA approved the first-ever “small interfering RNA” (siRNA) product, marking a significant milestone in the story of RNA interference (RNAi) technology and clearing the way for a new type of therapeutic.  Alnylam® secured approval and Orphan Drug Designation for its siRNA product Onpattro (patisiran), a therapy for the rare hereditary disease transthyretin-mediated amyloidosis in adult patients.  The disease is caused by mutations in a protein called “transthyretin” which leads to symptoms of neuropathic pain, loss of sensation in the hands and feet, and wheel-chair confinement.  In Alnylam’s Phase III clinical trial, Onpattro improved multiple clinical manifestations of the disease and demonstrated safe administration of a siRNA product.

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FDA Approves the First Gene Therapy to Treat an Inherited Disease

On December 19, 2017, FDA approved Spark Therapeutics’ gene therapy Luxturna (voretigene neparvovec-rzyl), the United States’ first gene therapy approved to treat an inherited genetic disease.  This approval follows that of Novartis’ Kymriah (tisagenlecleucel) and Gilead Sciences’ Yescarta (axicabtagene ciloleucel), both gene therapies approved earlier this year to treat certain forms of cancer.  Gene therapy has arrived, and although the genetic material central to these new treatments is not expressly listed in the statutory definition of “biological product,” FDA is regulating these products as biologics, giving them twelve-year non-patent exclusivity.

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