A Study to Evaluate the Safety of CNTO 2476 in Patients With Advanced Retinitis Pigmentosa

The study will be an open-label (all people know the identity of the intervention), first in human safety study. Nine adult men and women with advanced RP with LP only (first 5 participants) or not better than HM bilaterally (subsequent 4 participants) in both eyes will be enrolled. Participant 5 may have combination visual acuity of LP in the treated eye and no better than HM in the fellow eye. Treatment will proceed on a cohort basis ie, Cohort I: Participant 1; Cohort II: Participant 2; Cohort III: Participant 3 and 4; Cohort IV: Participant 5, 6, and 7; and Cohort V: Participant 8 and 9. The initial participants for each cohort must have completed at least 4 weeks of post-treatment follow-up before participants in the next cohort may be treated. There are 2 safety assessment phases in this study: the main phase approximately 12 months from the time the participant is eligible to enter the study and the long-term safety follow-up phase of 4 additional years. The total length of the participation in the study could last up to 5 years (including both the main and safety follow-up phases).