FDA OKs Gene Therapy for Retinal Disease

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FDA has approved a Neurotech Pharmaceuticals BLA for Encelto (revakinagene taroretcel-lwey) for treating macular telangiectasia Type 2 (MacTel), a neurodegenerative disease of the retina in adults that causes progressive and irreversible vision loss. The gene therapy uses an “encapsulated cell therapy technology designed to continually deliver therapeutic doses of ciliary neurotrophic factor (CNTF) to the retina to assist in slowing the progression of the disease,” the company says.

Approval is based on data from two Phase 3 trials which demonstrated that the implant significantly slowed the loss of macular photoreceptors in MacTel patients over 24 months, Neurotech says. The most common adverse reactions observed in the trial were conjunctival hemorrhage, delayed dark adaptation, foreign body sensation, eye pain, suture related complications, miosis, conjunctival hyperemia, eye pruritus, ocular discomfort, vitreous hemorrhage, blurred vision, headache, dry eye, eye irritation, cataract progression or formation, vitreous floaters, severe vision loss, eye discharge, anterior chamber cell, and iridocyclitis, it says.

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