A Study to Assess the Effects of Brolucizumab in Adult Patients With Neovascular Age Related Macular Degeneration

Neovascular age-related macular degeneration (nAMD) is characterized by the presence of choroidal neovascularization (CNV). Choroidal neovascularization consists of abnormal blood vessels originating from the choroid and can lead to hemorrhage, fluid exudation, and fibrosis, resulting in photoreceptor damage and vision loss. The safety and efficacy of brolucizumab has been demonstrated in 2 randomized, multicenter, double-masked, active controlled Phase 3 studies in nAMD patients (RTH258-C001 and RTH258-C002). Anatomical changes were evaluated in these studies using spectral domain optical coherence tomography (SD-OCT), which relied on indirect parameters for the diagnosis of active CNV. The OCT-angiography (OCT A) that directly visualize retinal circulation and image CNV and vascular diseases of the retina was not included in previous brolucizumab studies. This single-arm, open-label, multicenter study was performed to evaluate the efficacy and safety of brolucizumab 6 mg in patients with nAMD. OCT-A was used in this study to assess the morphological response of patients to brolucizumab in terms of percentage change in CNV lesion area in the short term (i.e. at Week 12) and in the long term (i.e. at Week 48), as well as changes in other OCT-A features up to Week 48.

This was a prospective, single-arm, open-label, multicenter study to evaluate the efficacy and safety of brolucizumab 6 mg in patients with neovascular age-related macular degeneration (nAMD). Patients were required to attend 6 mandatory study visits: Screening/Baseline Visit (Day 1), Week 4, Week 8, Week 12, Week 16 and Week 48 visits. The timing of the interim visits between Week 16 and Week 48 depended on the patient's injection regimen, i.e. every 12 weeks (q12w) or every 8 weeks (q8w). Patients who consented and met all the inclusion and none of the exclusion criteria were screened to evaluate eligibility. After confirmation of eligibility, patients were included and treated with brolucizumab 6 mg. The maximum study duration for 1 patient was 48 weeks, including Screening. There were 2 periods in this study: * Open-label treatment period: from Screening/Baseline (Day 1) to Week 40/Week 44 (depending on assigned regimen) * Follow-up period: Week 40/Week 44 to Week 48 A Safety Review Committee (SRC) was established for this study to provide an independent, systematic, standardized and unbiased assessment of the review of intraocular inflammation (IOI), retinal vasculitis (RV) and/or retinal vascular occlusion (RO).