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Updated: Jul 11, 2025

Encapsulated Cell Technology for the Delivery of Biologics to the Mouse Eye
Published on: March 30, 2020
Efficacy of Pegylated Interferon Alpha-2a in Uveitic Macular Edema Refractory to Biologic Agents
Mohammad Avarand1, Mine Esen Baris2, Leila Taheri2
1School of Medicine, Ege University, Izmir, Turkey.
Purpose:
To report the efficacy of pegylated interferon alpha-2a (Roferon, Hoffmann-La Roche brands, Switzerland) in uveitic macular edema refractory to biologic agents.
Methods:
Herein, we present two cases of non-infectious uveitis with cystoid macular edema (CME) who were unresponsive to immunosuppressant treatment, and whose uveitis and macular edema recurrences were prevented with subcutaneous injections of pegylated interferon α-2a.
Results:
Two young males (27- and 30-year-old) diagnosed with non-infectious uveitis and CME were on immunosuppressive treatment. Although both received systemic steroids and biologic agents, macular edema persists. After initiation of pegylated interferon alpha-2a (Pegasys, Genentech, USA) CME regressed significantly and did not occur during their follow-ups of 14 and 12 months.
Conclusion:
Pegylated interferon-alpha-2a can be used as an effective alternative to interferon alpha-2a in uveitic macular edema cases, resistant to other immunosuppressive agents.

