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Extension of maximum interval in treat-and-extend regimen using aflibercept for wet age-related macular degeneration Yosuke Arai 1 , Hidetaka Matsumoto 1 , Masahiro Morimoto 1 , Ryo Mukai 1 , Maki Takahashi 1 , Kazuki Nagai 1 , Kosuke Nakamura 1 , Mayuko Takayama 1 , Kensuke Mimura 1 , Shunsuke Tokui 1 , Tomoko Miyakubo 1 , Hideo Akiyama 1 1Department of Ophthalmology, Gunma University School of Medicine pp.913-919
Published Date 2019/7/15
DOI https://doi.org/10.11477/mf.1410213204
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Abstract Purpose:To evaluate the safety of treat-and-extend(TAE)regimen in extension of maximum interval using aflibercept for neovascular age-related macular degeneration(AMD).

Subjects and Methods:We treated 129 eyes of 127 patients with treatment-naïve typical AMD(tAMD)or polypoidal choroidal vasculopathy(PCV)by a TAE regimen with intravitreal aflibercept. The maximum interval of intravitreal aflibercept was 12 weeks. If no recurrence was observed for the first 2 years, the maximum interval was extended to 16 weeks in the third year. In eyes without recurrence for the first 2 years, the rate of recurrence, best corrected visual acuity(BCVA), exudative change, and number of injections in the third year were analyzed.

Results:Total 129 eyes included 68 eyes with tAMD and 61 eyes with PCV. Forty-three(33.3%)of 129 eyes showed no recurrence for the first 2 years. Forty eyes, including 14 eyes with tAMD and 26 eyes with PCV, showed no recurrence for the first 2 years and completed the 3-year follow up. Recurrence in the third year was observed in 6 eyes(15%, 2 eyes with tAMD and 4 eyes with PCV). Shortening of interval of intravitreal aflibercept enabled to improve the exudative changes. BCVA(average±SE)in patients with or without recurrence in the third year was 0.17±0.18 or 0.15±0.06 at 2 years, and 0.21±0.18 or 0.17±0.18 at 3 years after the initial treatment. There was no significant difference of BCVA change between the two groups. In the eyes with recurrence, the number of injections was 3.7±0.17 in the third year.

Conclusion:The maximum interval of aflibercept was extended to 16 weeks in the third year. Some patients showed recurrence of the lesion. Shortening the interval could prevent the deterioration of BCVA and exudative change.


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