4D-150 demonstrated consistent and durable benefit across all three patient cohorts as evidenced by maintenance of visual acuity, control of retinal anatomy and reduction of treatment burden at all time points with up to 2 years of follow-upStrong dose response in favor of Phase 3 dose (3E10 vg/eye) continues to be demonstrated4D-150 continues to be well tolerated with no new safety or intraocular inflammation findings, consistent with previous updates, with up to 3.5 years of follow-up4FRONT-1 Phase 3 enro ...