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  • Title: SWITCHING TREATMENT FOR NEOVASCULAR AGE-RELATED MACULAR DEGENERATION FROM BEVACIZUMAB TO RANIBIZUMAB: Who is Likely to Benefit From the Switch?
    Author: Moisseiev E, Katz G, Moisseiev J, Loewenstein A, Goldstein M, Lomnicky Y, Abend Y, Treister G, Goldenberg D, Levkovitch-Verbin H.
    Journal: Retina; 2015 Jul; 35(7):1323-30. PubMed ID: 26102434.
    Abstract:
    PURPOSE: To evaluate the safety and efficacy of switching from bevacizumab to ranibizumab in patients with neovascular age-related macular degeneration. METHODS: Retrospective study of patients with neovascular age-related macular degeneration initially treated with bevacizumab and switched to ranibizumab. Visual acuity and central retinal thickness (CRT) were retrieved at four time points: before the last three bevacizumab injections, at the switch, after the first three ranibizumab injections, and at the end of follow-up. RESULTS: One hundred and fourteen eyes of 110 patients were included. Switching from bevacizumab to ranibizumab did not achieve a significant change in visual acuity, and a significant reduction in CRT was achieved after the first three injections but was not maintained by the end of follow-up. Eyes that lost ≥0.1 logMAR before the switch were more likely to improve in visual acuity (P = 0.013), and eyes with ≥10% increase in CRT before the switch were more likely to improve anatomically (P = 0.0003). In 47.3% of the eyes, the CRT was reduced by ≥10% after the first 3 ranibizumab injections, and the reduction was maintained with additional injections. CONCLUSION: Switching to ranibizumab should be considered in patients with visual acuity decrease or CRT increase, despite monthly bevacizumab injections. The response should be evaluated after the first three injections to guide future treatment.
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