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ABSTRACT: Purpose
To characterize relationships between Consensus on Neovascular Age-Related Macular Degeneration Nomenclature (CONAN) Study Group classifications of macular neovascularization (MNV) and visual responses to ranibizumab in patients with neovascular age-related macular degeneration (nAMD).Methods
This was a post hoc analysis of the phase 3 HARBOR trial of ranibizumab in nAMD. Analyses included ranibizumab-treated eyes with baseline multimodal imaging data; baseline MNV; subretinal and/or intraretinal fluid at screening, baseline, or week 1; and spectral-domain optical coherence tomography images through month 24 (n = 700). Mean best-corrected visual acuity (BCVA) over time and mean BCVA change at months 12 and 24 were compared between eyes with type 1, type 2/mixed type 1 and 2 (type 2/M), and any type 3 MNV at baseline.Results
At baseline, 263 (37.6%), 287 (41.0%), and 150 (21.4%) eyes had type 1, type 2/M, and any type 3 lesions, respectively. Type 1 eyes had the best mean BCVA at baseline (59.0 [95% CI: 57.7-60.3] letters) and month 24 (67.7 [65.8-69.6] letters), whereas type 2/M eyes had the worst (50.0 [48.6-51.4] letters and 60.8 [58.7-62.9] letters, respectively). Mean BCVA gains at month 24 were most pronounced for type 2/M eyes (10.8 [8.9-12.7] letters) and similar for type 1 (8.7 [6.9-10.5] letters) and any type 3 eyes (8.3 [6.3-10.3] letters).Conclusion
Differences in BCVA outcomes between CONAN lesion type subgroups support the use of an anatomic classification system to characterize MNV and prognosticate visual responses to anti-vascular endothelial growth factor therapy for nAMD.Trial registration
ClinicalTrials.gov identifier: NCT00891735. Date of registration: April 29, 2009.
SUBMITTER: Freund KB
PROVIDER: S-EPMC8891431 | biostudies-literature | 2022 Aug
REPOSITORIES: biostudies-literature
Freund K Bailey KB Staurenghi Giovanni G Jung Jesse J JJ Zweifel Sandrine A SA Cozzi Mariano M Hill Lauren L Blotner Steven S Tsuboi Min M Gune Shamika S
Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie 20220303 8
<h4>Purpose</h4>To characterize relationships between Consensus on Neovascular Age-Related Macular Degeneration Nomenclature (CONAN) Study Group classifications of macular neovascularization (MNV) and visual responses to ranibizumab in patients with neovascular age-related macular degeneration (nAMD).<h4>Methods</h4>This was a post hoc analysis of the phase 3 HARBOR trial of ranibizumab in nAMD. Analyses included ranibizumab-treated eyes with baseline multimodal imaging data; baseline MNV; subre ...[more]