View clinical trials related to Macular Degeneration.
Filter by: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 factor involved in this angiogenetic processes in the eye. This forms the basis for new therapeutic interventions in exudative AMD. Currently two drugs have been approved by the FDA and one drug is used off-label. All these drugs are administered intravitreally. The present study aims to directly compare the effects ranibizumab and bevacizumab in a randomized controlled study in patients with neovascular AMD.
This phase II study was designed to evaluate the safety, tolerability, and efficacy of bevacizumab treatment in conjunction with PDT at the low fluence rate compared with bevacizumab alone or combined with PDT at the standard fluence rate, in patients with all types of choroidal neovascularization secondary to AMD. Hypothesis: bevacizumab in combination with PDT (low and standard fluence rate) will i) delay time to retreatment, ii) reduce the average number of treatments required compared to bevacizumab alone and iii) at low PDT fluence rate will improve long-term safety profile.
The purpose of this study is to determine the association of bevacizumab and PDT is safety and effective in the treatment of exudative AMD
One concern about repeated intravitreal injections of bevacizumab (Avastin) and ranibizumab (Lucentis) in wet age related macular degeneration, is that in addition to blocking the proteins that triggers the development and proliferation of abnormal vessels in the center of the retina, they may also result in changes in the normal vessels that feeds the outer part of the retina. Small vessels with fenestrations (such as those that feed the outer part of the retina, which are called choriocapillaris) appear to be especially sensitive to this protein (called vascular endothelial growth factor, VEGF) withdrawal. It is estimated that global blood flow in the vascular layer under the retina (called choroid) may be indirectly assessed by measuring the amplitude of the ocular pulsation (the pressure inside the eye change according to the cardiac cycle, similar to the change in blood pressure) which is called Ocular Pulse Amplitude (OPA). The Pascal Dynamic Contour Tonometer (Pascal DCT) is a new tonometer (a device which measures the pressure within the eye) designed to measure intraocular pressure and ocular pulse amplitude. No published study has yet assessed the effect of bevacizumab (Avastin) or ranibizumab (Lucentis) treatment for wet AMD (or on any other retinal disease) on OPA. This is our aim in this pilot study, in which we will measure the pressure within the eye just prior to bevacizumab/Ranibizumab treatment, followed by repeated measurements a week and a month after the treatment. For this purpose, up to 60 patients with wet AMD will be recruited.
The Cirrus OCT provides due to the spectral domain technology a 2-fold resolution than Stratus OCT generated in a comparable amount of time. Due to this higher resolution the retinal surface and the retinal pigment epithelium can be identified more clearly, a significantly reduced number of algorithm failures is expected
The study is designed to demonstrate the therapeutic non-inferiority of the recombinant humanized monoclonal VEGF antibody bevacizumab administered by intravitreal injection in the treatment of AMD in comparison to the related fragment ranibizumab.
The purpose of the project is to investigate in eyes with dry AMD, the efficacy and safety as preventive therapy of the immunomodulatory substance named copaxone which had been proven as safe and effective agent for a neurodegenerative disease, in arresting the progression as well as the conversion of dry AMD to wet AMD. The hypothesis that the immunomodulatory agent copaxone proven for a neurodegenerative disease may work in the eye is revolutionary and may open a new avenue of preventive treatment for the disease which is the major cause of legal blindness in the industrial world
The purpose of this study is to determine the benefits, if any, of combination therapy with Lucentis plus reduced fluence photodynamic therapy with Visudyne.
To compare the efficacy and safety of photodynamic therapy (PDT) combined with intravitreal bevacizumab versus combination of photodynamic therapy , intravitreal bevacizumab and intravitreal triamcinolone for neovascular AMD.
The purpose of this study is to explore the safety and efficacy of Macugen given as maintenance therapy in patients who have had initial success with another AMD treatment. Patients must have 1, but not more than 3 prior treatments for Neovascular AMD.