Repository Corticotropin Therapy for Refractory Noninfectious Inflammatory Ocular Diseases

<b>Objectives</b>: To describe the outcomes of patients with refractory noninfectious ocular inflammatory diseases who underwent treatment with repository corticotropin injection (RCI). <b>Methods</b>: A retrospective cohort study was conducted. Patients who failed treatment with corticosteroids and were subsequently treated with RCI were included. Primary outcome measures were intraocular inflammatory activity, intraocular pressure (IOP), and the development of complications. <b>Results</b>: A total of 19 eyes from 10 patients were included. Most of the patients were women (70.0%) and the median age at presentation was 49.0 years (30.0-84.0 years). The ocular diagnoses were anterior/intermediate uveitis, intermediate/posterior uveitis, panuveitis, ocular cicatricial pemphigoid, and anterior scleritis. Seventeen (89.5%) eyes had active disease. The median duration of RCI treatment was 16.0 months (6.0-28.0 months). Nine (90.0%) patients, representing 17 (89.5%) eyes, achieved disease inactivity and remained quiescent at the last visit. No patient was on systemic corticosteroids at the last evaluation. The mean IOP was lower under RCI than corticosteroid at one month (16.0 mmHg ± 6.1 vs. 20.8 mmHg ± 9.5, <i>p</i> = 0.033) and four months (15.6 mmHg ± 2.9 vs. 17.8 mmHg ± 3.7, <i>p</i> = 0.046); however, the overall difference was not significant (16.2 mmHg ± 1.1 vs. 17.3 mmHg ± 1.8, <i>p</i> = 0.057). Incidence rates were the highest for posterior subcapsular cataracts (44.4% per eye-year). Relative risk analysis (RR) showed a 40.0% risk reduction for cystoid macular edema (RR = 0.60, <i>p</i> = 0.054). <b>Conclusions</b>: RCI may be an alternative treatment for refractory noninfectious ocular inflammatory diseases in patients who have failed treatment with corticosteroids.