The purpose of this study is to evaluate the safety and tolerability of intravitreal injections of ranibizumab in the treatment of AMD variants and other choroidal neovascularization (CNV) related conditions (Coats' disease, idiopathic perifoveal telangiectasia, retinal angiomatous proliferation, polypoidal vasculopathy, pseudoxanthoma elasticum, pathological myopia, multi-focal choroiditis, rubeosis iridis) using the incidence and severity of adverse events. Limited forms of treatment are available that limit the loss of visual acuity. However, the patients may not have any substantial improvement in acuity or function. Therefore there remains a significant unmet need for therapeutic options managing the neovascularization and its consequences. Lucentis (ranibizumab) injection will be considered as an attempt to control the growth of the abnormal vessels because of evidence suggesting that angiogenic factors, such as vascular endothelial growth factor (VEGF), play a role in the pathogenesis of neovascular non-AMD conditions. The rationale for the study design is as follows: A 0.5 mg dose of Lucentis (ranibizumab), a commercially available preparation that is Food and Drug Administration (FDA) approved and labeled for intravitreal injection use for neovascular (wet) age-related macular degeneration will be used. In AMD variants and other CNV related conditions, vascular endothelial growth factor (VEGF) plays a role in the pathogenesis as in neovascular AMD. Intravitreal injection of ranibizumab delivers maximal concentration of the antibody fragment to the vitreous cavity with minimal systemic exposure. The dosing schedule, based on considerations of the half-life and the clinical response in patients with neovascularization suggests that a 1-month interval is optimal.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
18
ranibizumab 10mg mg/ml. , 0.3ml/vial, 0.05 ml./injection intravitreally for 3months then prn for the next 21 months.
Lenox Hill Hospital/Manhattan Eye Ear and Throat Institute
New York, New York, United States
Lenox Hill Hospital/Manhattan Eye, Ear & Throat Institute
New York, New York, United States
Safety and tolerability of intravitreal injections of ranibizumab in the treatment of non-AMD variants and other CNV related conditions
Time frame: 24 months
Mean change in central retinal thickness as measured by OCT at month 12 compared to baseline
Time frame: 24 months
Change in leakage area seen during fluorescein angiography at month 12 as compared with baseline
Time frame: 24 months
Number of additional injections required following the initial 3 injections
Time frame: 24 months
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