Efficacy and Safety Study of Ixoberogene Soroparvovec (Ixo-vec) in Participants With Neovascular Age-Related Macular Degeneration

The primary objective of this study is to evaluate the non-inferiority in efficacy of a single intravitreal (IVT) injection of Ixo-vec 6 x 10\^10 vector genome (vg)/eye compared to an active comparator. Neovascular or wet age-related macular degeneration (nAMD) is a degenerative ocular disease associated with the infiltration of abnormal blood vessels in the retina from the underlying choroid layer and is a leading cause of blindness in patients over 65 years of age. The abnormal angiogenic process in nAMD is stimulated and modulated by vascular endothelial growth factor (VEGF). Treatment of nAMD requires frequent intravitreal (IVT) injections of VEGF inhibitors (anti-VEGF) administered every 4-16 weeks. Ixo-vec (also known as ADVM-022 or AAV.7m8-aflibercept) is a gene therapy product being developed for the treatment of nAMD. Ixo-vec is designed to reduce the current treatment burden which often results in undertreatment and vision loss in patients with nAMD receiving anti-VEGF therapy in clinical practice. This study will be considered fully enrolled when randomization has been completed. Safety, tolerability, and efficacy will be evaluated throughout this study. The primary endpoint of this study is the mean change in best corrected visual acuity (BCVA) of Ixo-vec compared to an active comparator measured at an average of Weeks 52 and 56 post-treatment. After completing the Week 56 visit, participants will continue in the long-term follow-up period for 4 additional years (a total of 5 years on study).