View clinical trials related to Retinal Vein Occlusion.
Filter by:This clinical trial is designed to compare ranibizumab in comparison with Dexamethasone implant® after 6 months of treatment. In the study arm Lucentis will be given monthly in a pro re nata scheme whereas the comparator Dexamethasone implant is given once at Month 0 with sham injections PRN afterwards.
This clinical trial is designed to compare ranibizumab in comparison with Dexamethasone implant after 6 months of treatment. In the study arm Ranibizumab will be given monthly in a pro re nata scheme whereas the comparator Dexamethasone implant is given once at Month 0 with sham injections PRN afterwards.
The purpose of this study is to provide efficacy and safety data of 3 consecutive monthly intravitreal injections with 0.5 mg ranibizumab in Japanese patients with visual impairment due to macular edema secondary to retinal vein occlusion (BRVO or CRVO) to support the applicability of the phase III study results of BRAVO and CRUISE in this indication, in the Japanese ethnic patients.
Recent studies have shown a remarkably positive effect of 6 monthly injections of Ranibizumab on eyes with CRVO. The disease may cause severe sight threatening complications, partly due to restrictions in blood flow and oxygenation . Although Ranibizumab has been shown affective to reduce oedema of the retina, it is not known whether the drug ameliorates or aggravates restrictions in oxygenation. The Oxymap oximeter allows a non-invasive measurement of the oxygen saturation in retinal vessels and thus the state of retinal oxygenation. The primary objective of the study is to evaluate the effects of injections of Ranibizumab on the retinal oxygen saturation in eyes with newly diagnosed central retinal vein occlusion (CRVO), The secondary objective is to evaluate the effects of injections of Ranibizumab on visual acuity and retinal oedema in eyes with different degree of ischemia.
Canadians fear loss of vision more than any other disability. Vision loss has an enormous impact on quality-of-life and is extremely costly from a societal and economic perspective. In 2001, more than 600,000 Canadians were estimated to have severe vision loss, accounting for 17% of total disability in Canada. One in 9 individuals experience severe vision loss by 65 years of age; however, this increases to 1 in 4 individuals by 75 years. The financial cost of vision loss in Canada is $15.8 billion per year. There is a general perception that vision loss is "normal with aging" but 75% of vision loss is estimated to be preventable. The major causes of severe vision loss are age-related macular degeneration (ARMD), glaucoma, particularly primary open-angle glaucoma (POAG), and diabetic retinopathy (DR). Canada is headed for an epidemic of age-related eye disease and, unless something is done to prepare for this, severe vision loss will have significant consequences in terms of societal and economic costs. Through this proposed Research Program, and in conjunction with our international academic and private sector partners, we will build and develop unique quantitative imaging technologies to permit non-invasive assessment of visual changes, structural changes in the thickness of the retina at the back of the eye and also changes in the amount of blood flowing through the blood vessels that feed the retina with oxygen. This research will add to our basic knowledge in predicting the development of sight-threatening change in patients with the three diseases, and facilitate earlier detection of the problem to help us discover earlier treatments for people with these conditions. The reliability of each imaging technology will be assessed by determining its ability to differentiate between diseased and healthy eyes. Cross-sectional analyses at yearly intervals, as well as change over time analyses, will be undertaken.
This study will describe the long-term safety and effectiveness, treatment patterns,and patient reported quality of life associated with ranibizumab treatment in routine clinical practice for all approved indication included in the local product label.
Ranibizumab (Lucentis, Genentech) is an off-label drug used for the clinical treatment of central retinal vein occlusion, which is one of the most common retinal vascular disorders. Despite its clinical effectiveness, concerns remain regarding the systemic effects of the drug and previous studies have noted retinal arteriolar vasoconstriction following a ranibizumab injection. We aim to provide a physiological basis to these observations by assessing retinal blood flow before and after the ranibizumab injections. Specifically, we will assess the blood flow parameters (i.e. retinal vessel diameter, velocity & flow) immediately before the first injection and post-injection over a follow-up continued treatment period.
This is a study designed to determine if the addition of Ozurdex® to bevacizumab (Avastin®) eye injections reduces the need for repeat bevacizumab eye injections in patients with nonischemic central retina vein occlusion.
Obstructive sleep apnea is a common disorder linked to serious long-term adverse health consequences; such as hypertension, metabolic dysfunction, cardiovascular disease. Retinal vascular occlusion is related to many systemic illnesses especially hypertension. Obstructive sleep apnea is also related to vascular endothelial dysfunction and vascular endothelial growth factor elevation which causes vision threatening complications of retinal vascular occlusion. Therefore the relationship between obstructive sleep apnea and retinal vascular occlusion should be studied.
Ozurdex(TM) has recently been FDA approved for use in macular edema secondary to retinal vein occlusion. It remains unclear how quickly the drug works and for how long as the initial studies did not have frequent anatomic monitoring. This study will utilize frequent Spectral domain OCT imaging to better understand the onset of treatment effectiveness and duration of action on the anatomic thickness of the retina, in addition to distinguishing structural abnormalities of responders from non-responders.