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Changes of intraocular cytokines including vascular endothelial growth factor (VEGF) will be measured in recurrence of polypoidal choroidal vasculopathy (PCV) during treatment of ranibizumab.
PCV is regarded as a subtype of age-related macular degeneration (ARMD), but has several different features such as polypoidal terminal of new vessels, and relative resistance to anti-VEGF treatment. Other cytokines then VEGF are thought to be associated with development and progression of the disease. The aim of the this study is to investigate intraocular cytokines related to recurrence of polypoidal choroidal vasculopathy. Aqueous humor will be sampled from the anterior chamber at baseline, after loading injections of ranibizumab and at recurrence. The concentration of various cytokines will be measured in the aqueous humor.
Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Basic Science
Exudative Age-related Macular Degeneration
Pusan National University Yangsan Hospital
Korea, Republic of
Not yet recruiting
Pusan National University Hospital
Published on BioPortfolio: 2016-11-30T15:45:35-0500
This is a 24 week open label study to assess the efficacy of bi-weekly ranibizumab for patients with retinal fluid due to exudative macular degeneration refractory to monthly therapy.
The investigators will evaluate the concentrations of cytokeratin 8 in aqueous humor in eyes with exudative age-related macular degeneration (AMD) before therapy with intravitreal Ranibizu...
This is an open-label study assessing electrophysiologic testing of the retina with Electoretinogram (ERG) /Electrooculogram (EOG) tests in patients with exudative age-related macular dege...
Angiogenesis plays a key role in the development of choroidal neovascularizations (CNV) in age-related macular degeneration. Vascular endothelial growth factor (VEGF) is the most important...
Neovascular age-related macular degeneration (AMD) is the leading cause of severe vision loss in the Western world. Intravitreal ranibizumab has recently become the treatment of choice for...
The present study compared the efficacy of aflibercept for neovascular age-related macular degeneration (NV-AMD) in patients with complete ranibizumab resistance and tachyphylaxis.
To assess the efficacy of a combination therapy of intravitreal ranibizumab together with a dexamethasone implant in comparison with ranibizumab monotherapy in neovascular age-related macular degenera...
To evaluate the 6-month safety and efficacy of ziv-aflibercept intravitreal injections for treating exudative age-related macular degeneration.
To evaluate the effect of intravitreal bevacizumab on the macular choroidal volume and the subfoveal choroidal thickness in treatment naïve eyes with exudative age-related macular degeneration.
To investigate the course of inflammatory and angiogenic cytokines in the aqueous humor of patients with persistent/recurrent neovascular age-related macular degeneration (nAMD) under ranibizumab mono...
A form of MACULAR DEGENERATION also known as dry macular degeneration marked by occurrence of a well-defined progressive lesion or atrophy in the central part of the RETINA called the MACULA LUTEA. It is distinguishable from WET MACULAR DEGENERATION in that the latter involves neovascular exudates.
Specialized ophthalmic technique used in the surgical repair and or treatment of disorders that include retinal tears or detachment; MACULAR HOLES; hereditary retinal disease; AIDS-related retinal infections; ocular tumors; MACULAR DEGENERATION; DIABETIC RETINOPATHY; and UVEITIS.
A retrogressive pathological change in the retina, focal or generalized, caused by genetic defects, inflammation, trauma, vascular disease, or aging. Degeneration affecting predominantly the macula lutea of the retina is MACULAR DEGENERATION. (Newell, Ophthalmology: Principles and Concepts, 7th ed, p304)
A form of RETINAL DEGENERATION in which abnormal CHOROIDAL NEOVASCULARIZATION occurs under the RETINA and MACULA LUTEA, causing bleeding and leaking of fluid. This leads to bulging and or lifting of the macula and the distortion or destruction of central vision.
Degenerative changes in the RETINA usually of older adults which results in a loss of vision in the center of the visual field (the MACULA LUTEA) because of damage to the retina. It occurs in dry and wet forms.