Active clinical trials for "Retinal Diseases"

This study is a prospective, randomized, multicentre, open label study that intents to compare the efficacy and safety of ranibizumab 0.5 mg Intravitreal (ITV) injections plus Panretinal Photocoagulation versus Panretinal Photocoagulation alone in the regression of the neovascularization area in patients with High Risk Proliferative Diabetic Retinopathy over a 12-month treatment period. One of the major complications of the diabetes mellitus is Diabetic Retinopathy (DR), one of the leading causes of visual impairment in working age in industrialized countries. Longer diabetes duration and poor glycaemic and blood pressure control are strongly associated with Diabetic Retinopathy. The overall prevalence of any form of Diabetic Retinopathy is 34.4% and 6.96% corresponds to Proliferative Diabetic Retinopathy (PDR). Therefore, approximately 93 million people have Diabetic Retinopathy and 17 million of them have Proliferative Diabetic Retinopathy. It has been shown that treatment with repeated injections of ranibizumab can improve visual acuity in patients with PDR. Further, , the standard PRP treatment of PDR remains unsatisfactory. The knowledge of the mechanisms of this retinal complication is incomplete and, therefore, efforts should be done to understand and characterize patients' eyes response to combined treatments. Therefore, the purpose of this study is to compare the standard treatment for PDR (i.e. Panretinal Photocoagulation) with Panretinal Photocoagulation treatment combined with ITV injections of ranibizumab since it is expected that anti-vascular endothelial growth factor (VEGF) treatment with ITV injections will increase the rate of success of Panretinal Photocoagulation in regression of neovascularization with improved final visual acuity.

In this feasibility/pilot study, we will develop, refine, and evaluate the feasibility of a novel mental health/ophthalmologic intervention called, "Collaborative Care for Depression and Diabetic Retinopathy" (CC-DDR), which aims to treat depression and lower HbA1C in older African Americans with mild-to-moderate diabetic retinopathy (DR) and comorbid depression.

The purpose of this is study is to assess the efficacy of pre-operative intravitreal bevacizumab (IVB) (Genentech, South San Francisco CA) in improving visual acuity, reducing operative time, complications, intra-operative and post-operative hemorrhage following small gauge pars plana vitrectomy (PPV) (23-gauge, 25-gauge or 27-gauge ) compared to small gauge PPV (23-gauge, 25-gauge or 27-gauge) alone in eyes with tractional retinal detachment (TRD) secondary to proliferative diabetic retinopathy (PDR). Hypothesis: Preoperative IVB may be beneficial for membrane dissection in diabetic tractional retinal detachment with minimally invasive vitreoretinal surgery (23-gauge transconjunctival sutureless vitrectomy [TSV]). In addition, post-operative rebleeding may be decreased.

The purpose of this study is to look at how effective, safe, and well tolerated Intravitreal Aflibercept Injection is in subjects with Central Retinal Vein Occlusion (CRVO) or Proliferative Diabetic Retinopathy (PDR).

This study is investigating if the oral beta antagonist propranolol can induce regression of retinal neovascularization associated with proliferative diabetic retinopathy.

To show the non-inferiority of EGRIFTA® vs. placebo in the development or progression of Diabetic Retinopathy in HIV-infected subjects with concomitant abdominal lipohypertrophy and Type 2 diabetes mellitus (T2DM).

The purpose of this study was to assess the efficacy and safety of the anti-Vascular Endothelial Growth Factor (VEGF) agent ranibizumab (0.5 mg) with or without Panretinal laser photocoagulation (PRP) compared to PRP alone in patients with Proliferative Diabetic Retinopathy (PDR).

In premature infants, propranolol (Prop) treatment might suppress continuing neo-vascularization (NV) and decelerate the progression of retinopathy of prematurity (ROP) towards its severe stages (III-V), thus avoiding the need of interventions (CRYO and/or LASER photo-coagulation of the ischemic retina and preventing severe ocular sequelae. We therefore plan to prospectively investigate the influence of prop versus placebo in VLBW infants with ROP stage 1 (zone I), with stage 2 or higher (any zone) or with Plus disease, along with close follow up regarding safety of prop administration and its effect on ROP.

This study evaluates a new investigational treatment regimen of three consecutive monthly doses of ranibizumab followed by an as-needed treatment regimen, with monthly follow-up for the first three months then two-monthly follow-up until 18 months in patients with visual impairment due to diabetic macular oedema.The aim of the study is to determine if this treatment regimen is effective and safe in these patients.

Recently, intravitreal bevacizumab (Avastin) injection has gained popularity as a potential treatment of intraocular neovascularization (CNV) associated with age related macular degeneration and diabetic retinopathy. The efficacy of the drug is thought to be related with its pharmacologic blockade of VEGF. The purpose of this study is to determine the effect of the intravitreal bevacizumab on the fibrovascular membrane associated with proliferative diabetic retinopathy by objective histologic evaluation. The patients scheduled for vitrectomy for tractional fibrovascular membrane due to proliferative diabetic retinopathy will be randomized into two treatment groups. The one will receive conventional vitrectomy and the other group will receive intravitreal bevacizumab injection one week before the scheduled vitrectomy. The fibrovascular membrane will be excised during surgery and fixated for histologic examinations. The expression of VEGF and PEDF, a potent inhibitor of angiogenesis, will be evaluated in the fibrovascular membrane by immunohistochemistry. The results will be compared between two treatment groups.