Correlation between improvement in visual acuity and QOL after Ranibizumab treatment for age-related macular degeneration patients: QUATRO study.
2020
BACKGROUND To evaluate the correlation between visual acuity improvement and vision-related QOL after ranibizumab treatment in Japanese patients with AMD. METHODS In this one-year prospective, interventional, open-label, multicenter study involving four sites, patients with neovascular AMD were enrolled and observed for 12 months. Treatment-naive patients received 0.5 mg ranibizumab as needed after three initial monthly doses. The best corrected visual acuity (BCVA) and central macular thickness (CMT) were measured at every visit. Evaluations with the 25-item National Eye Institute Visual Function Questionnaire (NEI-VFQ-25) and patient satisfaction questionnaire were performed at baseline and 3 and 12 months after initial treatment. The primary endpoint was change in BCVA and QOL 3 months after ranibizumab treatment. QOL outcomes were also assessed in the better and poor BVCA subgroups. RESULTS The study enrolled 100 patients. The mean logMAR BCVA after treatment improved significantly from 0.43 to 0.30 at 3 months (p 0.6, p=0.1) at 3 months. There were no significant differences in the satisfaction questionnaire score from baseline to at 3 months (p=0.54) and 12 months (p=0.23). The average CMT improved significantly from 340 to 264 μm at 3 months (p< 0.0001) and to 268 μm at 12 months (p< 0.0001). CONCLUSIONS Intravitreal ranibizumab treatment resulted in improvement in visual acuity, anatomical change, and visual function change in Japanese AMD patients. Significant improvement was seen in patient visual function, and this was correlated with changes in VA, except immediately after loading dose treatment in patients with higher baseline VA. The patients' satisfaction with the treatment remained unchanged during the study period. TRIAL REGISTRATION This study is registered at UMIN Clinical Trials Registry ( UMIN000012013 ). Registered October 10, 2013, as prospective study.
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