Real-World Outcomes of the 0.19 mg Fluocinolone Acetonide Intravitreal Implant for Diabetic Macular Edema

Abstract

Purpose: To evaluate the real-world clinical and safety outcomes of a 0.19 mg fluocinolone acetonide intravitreal implant to treat diabetic macular edema (DME). Methods: This retrospective analysis comprised patients treated with a single fluocinolone acetonide intravitreal implant for the clinical indication of ME secondary to diabetic retinopathy. Primary outcomes included changes in best-corrected visual acuity (BCVA), central subfield thickness (CST), and frequency of DME-related treatments 12 months before and up to 36 months after fluocinolone acetonide administration. Safety outcomes were also assessed. Results: One hundred forty-eight eyes (115 patients) were followed for a mean (±SD) of 12.3 ± 4.2 months before and 29.4 ± 14.5 months after fluocinolone acetonide administration. A 0.8-letter decrease in the mean BCVA was observed at month 24. The BCVA was 70 letters (20/40 Snellen equivalent) or more (Early Treatment Diabetic Retinopathy Study) in 20.6% of eyes at baseline and 23.7% 24 months after implant administration. The mean CST was 379.9 μm and 323.7 μm, respectively. The CST was 300 μm or less in 58.7% of eyes at month 24 ( P < 0.001). The mean frequency of intravitreal antivascular endothelial growth factor injections or laser photocoagulation decreased from 4.9 to 1.5 per year after fluocinolone acetonide administration ( P < 0.001). Implant migration to the anterior chamber occurred in 3 eyes, 2 of which were vitrectomized and later required removal. Conclusions: The 0.19 mg fluocinolone acetonide intravitreal implant provided long-term stabilization of VA and macular anatomy in patients with DME, despite a significant reduction in treatment frequency.