Active clinical trials for "Neovascularization, Pathologic"

The primary objective: *To measure the difference in the number of Ranibizumab therapies needed in 12 months in the Posterior Vitreous Detachment (PVD) positive and Posterior Vitreous Detachment (PVD) negative group. Secondary Objective: To measure the mean change in visual acuity from Baseline to Month 12. To measure the mean change in central retinal thickness per OCT from Baseline to Month 12

This study will investigate the safety and efficacy of treatment of choroidal neovascularization (CNV) due to age-related macular degeneration (AMD) with a combination of ranibizumab (Lucentis) and verteporfin PDT (Visudyne), as compared with ranibizumab monotherapy.

Angiogenesis and fibrosis lie at the heart of a number of fundamental processes responsible for cardiovascular disease. In this proposal, the investigators intend to build upon a highly successful programme of studies exploring the cardiovascular applications of positron emission tomography. Specifically, the investigators will explore the potential role of a novel radiotracer, 18F-fluciclatide, which is a highly selective ligand for the αvβ3 and αvβ5 integrin receptors that are up regulated during angiogenesis, and tissue fibrosis and remodelling. This tracer has been successfully used to assess angiogenesis in metastatic tumours and its uptake is suppressed by anti-angiogenic therapies. The investigators here propose to describe the pattern of uptake of 18F-fluciclatide in cardiovascular diseases, specifically acute myocardial infarction and aortic atherosclerosis. The investigators will correlate 18F-fluciclatide uptake with in vivo measures of angiogenesis and fibrosis. If successful, this novel radiotracer could provide an extremely important non-invasive method of assessing in vivo angiogenesis, plaque vulnerability, and tissue remodelling as well as potential applications in developing stem cell therapies.

This study will quantify the intraocular pressure elevation in the immediate time period following intravitreous injection. With more widespread use of intravitreous injections in patients that may require several injections per year, it is important to document the sudden increase in intraocular pressure, including the maximum intraocular pressure and the time required for the intraocular pressure to return to baseline. This data may be useful in stimulating additional studies to evaluate the long term ocular effects of repeated intravitreous injections. We hypothesize that the intraocular pressure increases significantly following intravitreous injection and then returns to baseline during the initial thirty minutes following ranibizumab injection.

The objectives of this study are to investigate the safety and effectiveness of EYLEA.

This was a prospective, case-control study investigating aqueous levels of VEGF and PEDF in eyes with mCNV treated with IVB.

Corneal transplantation is the most commonly performed human tissue transplant worldwide. Over 40,000 corneal transplants occur in the US each year. . This study will determine specific corneal neovascularization (CN) patterns in human corneal allograft recipients to determine the characteristics that worsen the prognosis for graft survival. We will test the hypothesis that specific characteristics of CN are prognostic for corneal allograft rejection.

Age-related macular degeneration (AMD) is the chief cause of severe and irreversible loss of vision in developed countries. The prevalence of AMD increases dramatically with age. The early stage (or dry AMD) is associated with minimal visual impairment and is characterized by large drusen and pigmentary abnormalities in the macula. The late stage is a neovascular, exudative form. This so called exudative AMD includes serous or hemorrhagic detachment of retinal pigment epithelium and choroidal neovascularization leading to severe loss of vision (20/200 or worse). Patients with unilateral CNV (choroidal neovascularisation) have a significant risk of CNV developing in the second eye. Choroidal blood flow is of great importance for normal visual function. Several reports have provided evidence suggesting that choroidal blood flow is decreased in subjects with AMD. In late stages of AMD angiogenesis leads to the formation of choroidal neovascularization that can cause severe visual impairment by disrupting normal macular function. The purpose of this evaluation is to investigate a possible link between alterations in choroidal blood flow and the development of CNV and serous detachment in the fellow eye of patients with AMD and unilateral neovascular maculopathy. This longitudinal study may provide important findings with respect to natural history and visual prognosis of patients with neovascularized AMD. Ocular blood flow will be determined by non-invasive methods, including laser Doppler flowmetry and laser interferometry

The purpose of the study is to assess the effect of Sunitinib on tumor vascularization and necrosis in patients with metastatic renal cell cancer.

The aim of study is to compare the evaluation of dark halo area of macular neovascularization (MNV) between indocyanine green angiography (ICGA) and optical coherence tomography angiography (OCTA) in order to identify OCTA as effective and useful biomarker in MNV