Paris, France, April 3, 2018, 5.35 pm CET — GenSight Biologics (Euronext: SIGHT, ISIN: FR0013183985, PEA - PME eligible), a biopharma company focused on discovering and developing innovative
gene therapies for retinal neurodegenerative diseases and central nervous system disorders, today announced topline results from the REVERSE Phase III clinical trial evaluating the safety and efficacy of a single intravitreal injection of GS010 (rAAV2 / 2 - ND 4) in 37 subjects whose visual loss due to 11778 - ND4 Leber Hereditary Optic Neuropathy (LHON) commenced between 6 and 12 months
prior to
study treatment.