We are a leading clinical-stage gene therapy company focused on developing and commercializing novel one-time treatments for patients suffering from rare inherited retinal diseases that would otherwise progress to blindness. Leveraging our expertise in ophthalmology, gene therapy and drug development, we are developing a pipeline of proprietary product candidates that are designed to substantially modify or halt the progression of inherited retinal diseases for which there are no currently approved treatments. Our lead product candidate, NSR-REP1, for the treatment of choroideremia, or CHM, is entering Phase 3 clinical development in the first half of 2018 and represents the most clinically advanced product candidate for this indication worldwide. We are also conducting a Phase 1/2 clinical trial with our second product candidate, NSR-RPGR, for the treatment of X-linked retinitis pigmentosa, or XLRP. Our third product candidate, NSR-BEST1, is in preclinical development for the treatment of Best vitelliform macular dystrophy, or Best disease.