ArticleOphthalmology and therapy2024
High-Dose Brolucizumab for Refractory Neovascular Age-Related Macular Degeneration Resistant to Standard-Dose Brolucizumab.
Article in Ophthalmology and therapy, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionThe aim of this study was to evaluate the efficacy and safety of escalating the dosage of intravitreal brolucizumab in patients with refractory neovascular age-related macular degeneration (AMD).
methodsThis retrospective study included 17 eyes of 17 patients with refractory AMD treated with high-dose brolucizumab (12 mg/0.1 ml) for over 12 months. Patients initially received at least one anti-vascular endothelial growth factor (anti-VEGF) agent and were switched to standard-dose brolucizumab (6 mg/0.05 ml). Those who showed a suboptimal response to standard-dose treatment had their dosage of brolucizumab escalated.
resultsVisual acuity was maintained from 68.3 ± 3.4 letters to 70.7 ± 3.2 letters after 12 months of high-dose treatment (P = 0.128). Central subfield thickness was 343.7 ± 17.0 μm before high-dose treatment and 316.7 ± 18.5 μm at 12 months (P = 0.083). The proportions of patients with subretinal fluid and serous pigment epithelial detachment significantly decreased from 82.4% to 41.2% and from 52.9% to 17.6%, respectively, after high-dose treatment (P = 0.039 and P = 0.031, respectively). The treatment interval extended from 7.2 ± 2.4 weeks to 10.2 ± 2.2 weeks after switching to standard-dose brolucizumab (P < 0.001) and was maintained at 13.5 ± 2.8 weeks after increasing the dose (P = 0.154). No severe ocular adverse events were observed.
conclusionsHigh-dose brolucizumab was effective in patients who did not respond to standard-dose brolucizumab after switching from previous anti-VEGF agents. Increasing the dosage could offer sustained disease control and reduce the treatment burden for patients with refractory AMD.
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