View clinical trials related to Diabetic Retinopathy.
Filter by:This study is designed to evaluate the prevalence of different stages of diabetic retinopathy and diabetic macular edema among patients suffering from type 1 diabetes (DM1) for 5 to 25 years and have been treated with intensified insulin therapy aiming near-normal blood glucose levels for the whole duration of disease. Prevalence of different stages of diabetic retinopathy and diabetic macular edema is assessed using the modified Airlie House classification and the Early Treatment Diabetic Retinopathy Study (ETDRS) retinopathy severity scheme. Results of this study will provide the basis for designing further studies as well as staging and screening guidelines for diabetic retinopathy/diabetic macular edema.
The aim of this study is to evaluate the monitoring of moderate diabetic retinopathy by tele-expertise
To evaluate the safety and efficacy of intravitreal conbercept after vitrectomy for the management of early-stage proliferative diabetic retinopathy (PDR). Hypothesis: intravitreal conbercept therapy may promote functional and anatomic recovery from PDR. intravitreal conbercept therapy may be a useful and safe method for improving visual outcomes of surgery for early-stage PDR.
This study is directed to evaluate the role of Optical Coherence Tomography Angiography (OCT-A) in the evaluation of the perifoveal vascular network in type 1 diabetic patients, and to investigate the relationship between OCT-A-derived parameters and demographic and clinical factors, as metabolic control and duration of the disease.
This study proposes to carefully examine the hypothesis that human inducible pluripotent stem cells (iPSCs) can be effectively employed as a future therapeutic option for individuals with diabetic retinopathy and macular ischemia. iPSCs will be generated from the peripheral blood cells of subjects with diabetes and age matched controls. The human iPSC cells will be used to generate mesoderm cells for injection into the vitreous cavity of diabetic rodents and primate eyes. The ability of mesoderm cells to generate endothelial cells and pericytes in areas of degenerated capillaries will be examined. The human iPSCs will also be used to generate hematopoietic CD34+CD45+ cells. The combination of CD34+CD45+ cells derived from iPSCs and iPSC derived mesoderm will be examined in combination for their potentially beneficial effect to enhance the vessel formation.
Results from large clinical trials demonstrate a strong association between lipid abnormalities and progression of the most common microvascular complication, diabetic retinopathy (DR). We found that activation of a master regulator of cholesterol metabolism, the nuclear hormone receptors liver X receptors (LXRα/LXRβ), prevents DR in rodent models. In this application, we seek to understand the mechanisms responsible for the beneficial effects of LXR agonists on retina and on bone marrow (BM) to preserve the function of reparative cells while reducing inflammatory cell.
The purpose of this study is to determine if the reparative cells of blood vessels called endothelial progenitor cells(EPC) are defective in people with diabetes.
Comparison of OCTA to conventional imaging modalities for the diagnosis of eye diseases in children
Comparison between retinal measurements, done by the Notal-OCT imaging and a commercial OCT (Optical Coherence Tomography)
Despite improved glycemic and systemic control for many patients with diabetes, over the past several decades, diabetic retinopathy (DR) develops and progresses in a large proportion of patients, and visual loss from diabetic eye complications continues to be a leading cause of blindness in the US and other developed countries worldwide. Thus, even a modest ability to prevent DR onset or to slow DR worsening might substantially reduce the number of patients at risk for diabetes-related vision loss worldwide. Widespread use of an oral agent effective at reducing worsening of DR might also decrease the numbers of patients who undergo treatment for DR and diabetic macular edema (DME) and who are consequently at risk for side effects that adversely affect visual function. Two major studies of fenofibrate, the Fenofibrate Intervention and Event Lowering in Diabetes (FIELD) and The Action to Control Cardiovascular Risk in Diabetes (ACCORD)-eye study, have demonstrated clinically important reduction in progression of retinopathy in patients with diabetes assigned to fibrate compared with placebo. However, despite the positive clinical trial results, fenofibrate has not gained wide acceptance as a preventive agent by either ophthalmologists or primary diabetes care providers. Thus, it is important to provide further evidence demonstrating whether or not selectively increasing peroxisome proliferator-activated receptor alpha (PPARα) activity reduces progression of retinopathy in patients with diabetes and non-proliferative diabetic retinopathy at baseline. Pemafibrate is a more potent and selective PPARα modulator than fenofibrate. Its efficacy is currently being evaluated in the Pemafibrate to Reduce Cardiovascular OutcoMes by Reducing Triglycerides IN patiENts With diabeTes (PROMINENT) study for prevention of cardiovascular events in patients with type 2 diabetes. Given the large study cohort with a substantial proportion likely to have DR and the multi-year duration of the PROMINENT trial, this study represents a unique opportunity to assess effects of chronic PPARα activation through pemafibrate therapy on DR outcomes. Primary Study Objective: To assess whether treatment with pemafibrate (0.2 mg orally BID) compared with placebo reduces the hazard rate of diabetic retinopathy worsening in adults with type 2 diabetes and diabetic retinopathy without neovascularization in at least one eye who are participating in the parent PROMINENT trial.