A Randomized, Open Label, Controlled, Phase 2 Clinical Study to Evaluate the Efficacy and Safety of RGX-314 AAV Gene Therapy Administered Via Subretinal Delivery in Participants With Center Involved Diabetic Macular Edema

Inclusion Criteria: * Type I or Type II diabetes mellitus with center involving diabetic macular edema with previous treatment * HbA1c ≤12% * BCVA in study eye 78 to 25 ETDRS letters (\~20/32 to 20/320) at screening * Decreased visual acuity attributable primarily due to CI - DME * Demonstrate clinical response to aflibercept injection in the study eye * Provide written informed consent Exclusion Criteria: * Women of childbearing potential * Neovascularization in the study eye from a cause other than DR * Evidence in the study eye of optic nerve pallor on clinical examination * History of p…