The 2017 FDA approval of Luxturna (voretigene neparvovec-rzyl, Roche Holding AG) spurred a race to create the next gene therapy for the eye. The organ is very amenable to gene therapy given that it's a confined space with post-mitotic cells that has immune privilege and requires substantially smaller amounts of viral vector compared to systemic treatments.
Earlier this month, an update on phase I/IIa data rolled out from Rockville, Md.-based Regenxbio Inc. with RGX-314 for age-related wet macular degeneration (AMD). The company has a pivotal program in subretinal delivery of the compound set to start by the end of this year, and questions about routes of administration – always an issue in AMD – continue to simmer.
Following FDA approval of Novartis AG's VEGF-A inhibitor, Beovu, in wet age-related macular degeneration earlier this month, speculation immediately started on how much market share that new therapeutic will capture at the expense of Regeneron Pharmaceutical Inc.'s Eylea.