Active Clinical Studies A Randomized Clinical Trial Evaluating Fenofibrate for Prevention of Diabetic Retinopathy Worsening (Protocol AF) OPEN ENROLLMENT An Open-Label Dose Escalation Study to Evaluate the Safety and Efficacy of AGTC-501 (rAAV2tYF-GRK1-RPGR) in Subjects with X-linked Retinitis Pigmentosa caused by RPGR-ORF15 mutations (20172166) A Natural History and Outcome Measure Discovery Study of PRPF31 Mutation–Associated Retinal Dystrophy (20226317) OPEN ENROLLMENT