Safety and Efficacy of rAAV2tYF-GRK1-RPGR in Subjects With X-linked Retinitis Pigmentosa Caused by RPGR Mutations

This protocol includes a non-randomized, open-label, Phase 1/2 study (HORIZON). Approximately 30 participants will be enrolled into the dose escalation study (HORIZON). Each participant will receive the study agent by subretinal injection in one eye on a single occasion. Enrollment will begin with the lowest dose and will proceed to higher doses only after review of safety data by a Data and Safety Monitoring Committee (DSMC). There are a total of 15 visits over approximately 36 months, and long-term follow-up evaluations annually at years 4 and 5.