Tiarnan D Keenan1, Susan Vitale2, Elvira Agrón2, Amitha Domalpally3, Andrew N Antoszyk4, Michael J Elman5, Traci E Clemons6, Emily Y Chew2. 1. Division of Epidemiology and Clinical Applications, National Eye Institute, National Institutes of Health, Bethesda, Maryland. Electronic address: tiarnan.keenan@nih.gov. 2. Division of Epidemiology and Clinical Applications, National Eye Institute, National Institutes of Health, Bethesda, Maryland. 3. Fundus Photographic Reading Center, University of Wisconsin, Madison, Madison, Wisconsin. 4. Charlotte Eye, Ear and Throat, Charlotte, North Carolina. 5. Elman Retina Group, Baltimore, Maryland. 6. The Emmes Corporation, Rockville, Maryland.
Abstract
PURPOSE: To analyze best-corrected visual acuity (BCVA) outcomes after anti-vascular endothelial growth factor (VEGF) treatment for neovascular age-related macular degeneration (AMD). DESIGN: Prospective cohort study of participants enrolled in a clinical trial oforal supplements and receiving anti-VEGF therapy in routine clinical practice. PARTICIPANTS: Age-Related Eye Disease Study 2 (AREDS2) participants (50-85 years of age) whose eyes met AREDS2 inclusion criteria at baseline (no late AMD, BCVA ≥20/100, no previous anti-VEGF injections) but received atleast 1 anti-VEGF injection for incident neovascular AMD during follow-up. METHODS: Participants underwent refracted BCVA testing, ophthalmoscopic examination, and stereoscopic color fundus photography at baseline and annual study visits over 5 years. Self-reports of anti-VEGF injections (numbers, dates, and names of drug) were collected at baseline and annual study visits and during telephone calls every 6 months. MAIN OUTCOME MEASURES: Primary outcome measures were mean refracted BCVA and proportions of eyes with BCVA of 20/40 or better and 20/200 or worse. An exploratory outcome measure was the mean number of self-reported anti-VEGF injections. RESULTS:One thousand one hundred five eyes of 986 AREDS2 participants met the inclusion criteria; of these, 977 participants (99.1%) underwent at least 1 posttreatment visit. At the first and subsequent annual examinations after the first injection, mean refracted BCVAs were 68.0 letters (Snellen equivalent, 20/40), 66.1 letters, 64.7 letters, 63.2 letters, and 61.5 letters (Snellen equivalent, 20/60). Proportions of eyes with BCVA of 20/40 or better were 59.3%, 55.1%, 53.5%, 50.6%, and 49.7%, and those with BCVA of 20/200 or worse were 5.5%, 8.6%, 9.4%, 12.4%, and 14.4%. Mean annual numbers of self-reported anti-VEGF injections per eye were 2.9, 3.9, 3.3, 3.1, and 3.0. CONCLUSIONS: Refracted BCVA data were obtained in a clinical trial environment but were related to anti-VEGF treatment administered in normal clinical practice. Visual outcomes declined slowly with increased follow-up time: mean BCVA decreased by approximately 1.5 to 2 letters per year. At 5 years, half of eyes achieved BCVA of 20/40 or better, but approximately one sixth showed BCVA of 20/200 or worse. These data may be useful in assessing the long-term effects of anti-VEGF therapy. Published by Elsevier Inc.
RCT Entities:
PURPOSE: To analyze best-corrected visual acuity (BCVA) outcomes after anti-vascular endothelial growth factor (VEGF) treatment for neovascular age-related macular degeneration (AMD). DESIGN: Prospective cohort study of participants enrolled in a clinical trial of oral supplements and receiving anti-VEGF therapy in routine clinical practice. PARTICIPANTS: Age-Related Eye Disease Study 2 (AREDS2) participants (50-85 years of age) whose eyes met AREDS2 inclusion criteria at baseline (no late AMD, BCVA ≥20/100, no previous anti-VEGF injections) but received at least 1 anti-VEGF injection for incident neovascular AMD during follow-up. METHODS:Participants underwent refracted BCVA testing, ophthalmoscopic examination, and stereoscopic color fundus photography at baseline and annual study visits over 5 years. Self-reports of anti-VEGF injections (numbers, dates, and names of drug) were collected at baseline and annual study visits and during telephone calls every 6 months. MAIN OUTCOME MEASURES: Primary outcome measures were mean refracted BCVA and proportions of eyes with BCVA of 20/40 or better and 20/200 or worse. An exploratory outcome measure was the mean number of self-reported anti-VEGF injections. RESULTS: One thousand one hundred five eyes of 986 AREDS2 participants met the inclusion criteria; of these, 977 participants (99.1%) underwent at least 1 posttreatment visit. At the first and subsequent annual examinations after the first injection, mean refracted BCVAs were 68.0 letters (Snellen equivalent, 20/40), 66.1 letters, 64.7 letters, 63.2 letters, and 61.5 letters (Snellen equivalent, 20/60). Proportions of eyes with BCVA of 20/40 or better were 59.3%, 55.1%, 53.5%, 50.6%, and 49.7%, and those with BCVA of 20/200 or worse were 5.5%, 8.6%, 9.4%, 12.4%, and 14.4%. Mean annual numbers of self-reported anti-VEGF injections per eye were 2.9, 3.9, 3.3, 3.1, and 3.0. CONCLUSIONS: Refracted BCVA data were obtained in a clinical trial environment but were related to anti-VEGF treatment administered in normal clinical practice. Visual outcomes declined slowly with increased follow-up time: mean BCVA decreased by approximately 1.5 to 2 letters per year. At 5 years, half of eyes achieved BCVA of 20/40 or better, but approximately one sixth showed BCVA of 20/200 or worse. These data may be useful in assessing the long-term effects of anti-VEGF therapy. Published by Elsevier Inc.
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