Active clinical trials for "Diabetic Retinopathy"

Primary objective of this trial will be to evaluate the safety and efficacy of intravitreal injections of Macugen (pegaptanib sodium) when given at least 7-14 days prior to vitrectomy in subjects with tractional retinal detachment (with or withoutmacular involvement) secondary to proliferative diabetic retinopathy. Secondary objective is to evaluate regression of neovascularization and progression of macular traction utilizing OCT and fundus photographs.

To evaluate the safety and determine the efficacy of PRP monotherapy or combination therapy (pegaptanib 0.3 mg plus PRP) in patients with Type I or Type II diabetes mellitus and with high risk proliferative diabetic retinopathy.

The purpose of this study is to determine if intravitreal injection of Vitrase (ovine hyaluronidase) clears vitreous hemorrhage

This study will provide preliminary data on the dose and dose interval related effects of intravitreally administered Avastin on retinal thickness and visual acuity in subjects with Diabetic Macular Edema (DME) to aid in planning a phase 3 trial. In addition, this study will provide preliminary data on the safety of intravitreally administered Avastin in subjects with DME.

The use of intravitreal injections of corticosteroid (triamcinolone acetonide) appears to be a promising treatment for a variety of ocular diseases associated with inflammation. To date, the only drug available, "Kenalog-40 Injection" produced by Bristol Myers Squibb, has not been formulated for intraocular use. The purpose of this study is to evaluate the long-term safety and potential efficacy of novel intravitreal injections of a preservative-free formulation of triamcinolone acetonide (TAC-PF) at two dosage levels (4 mg and 8 mg) compared to anterior sub-tenon injections of TAC-PF at 20 mg. The study will be a masked, randomized Phase I study that will enroll 120 participants with one of the following diseases: age-related macular degeneration (AMD), diabetic macular edema (DME), central retinal vein occlusion (CRVO), branch retinal vein occlusion (BRVO), or any other retinal disease with associated macular edema. At least 21 participants will be enrolled in the four designated disease strata: AMD, DME, CRVO, and BRVO. The remaining 36 participants may have one of these diseases or may be enrolled with another retinal disease. Within each disease strata, at least seven participants will be randomized to each dosing group. The participants will be randomly assigned to one of the three treatment groups. The primary outcome will be an assessment of post-injection intraocular toxicity-related events during the 3-year follow-up, including cataract formation, development of glaucoma, and any adverse event preventing retreatment. The secondary outcomes will be an improvement in best-corrected visual acuity (BCVA, EVA) and decreases in retinal thickening and area of leakage, from baseline to year 1.

Certain percent of the eyes with proliferative diabetic retinopathymay require pars plana vitrectomy (PPV) due to vitreous haemorrhage, proliferative membrane, and tractional retinal detachment. This study will compare intravitreal injection of anti-vascular endothelial growth factor (ranibizumab) versus sham injection before vitrectomy for PDR. The main focus is to see if pre-operative injection of ranibizuman can reduce peri-operative hemorrahge related complications.

The purpose of this study was to demonstrate that the change of best corrected visual acuity (BCVA) was comparable in patients treated with ranibizumab at the discretion of the investigator vs. treatment according to a standard of care scheme (pro re nata, as needed).

This is a one month pre post intervention study. Subjects with diabetic macular edema were given intravitreal anti VEGF (Aflibercept) injection. Central retinal thickness, macular electrophysiology, and visual acuity were observed one week and one month after injection was given to the eye to describe early anatomical, physiological, and clinical changes. We hypothesized that changes to these outcomes can be found and documented.

The present study is a semi-experimental clinical trial that 20 patients (40 eyes) with PDR underwent PRP with ARC with a spot number of 1,200 to 1,500 per eye and spot size 500 micron with a duration of 200 ms. The variables of contrast sensitivity, macula thickness under fovea , BCVA, the width of thyroid under fovea , RNFL thickness in the four areas around the disc, and the quality of life questionnaire of all patients were recorded at the beginning of the study.Retinal and choroid under fovea thickness and RNFL thickness were assessed in four areas, one week and one month after the end of treatment, and all the variables mentioned earlier were evaluated three months after PRP surgery. This study is single group that the outcomes are compared before and after the intervention

Ultra-wide field fluorescein angiography can detect the response of anti VGEF therapy such as Avastin on retinal ischemia in the setting of diabetic macular edema.