Active clinical trials for "Macular Edema"

The knowledge of the pathogenesis of retinal affections, a major cause of blindness, has greatly benefited from recent advances in retinal imaging. However, optical aberrations of the ocular media limit the resolution that can be achieved by current techniques. The use of an adaptive optics system improves the resolution of ophthalmoscopes by several orders of magnitude, allowing the visualization of many retinal microstructures: photoreceptors, vessels, bundles of nerve fibers. Recently, the development of the coupling of the two main imaging techniques, the Adaptive Optics Ophthalmoscope with Optical Coherence Tomography, enables unparalleled three-dimensional in vivo cell-scale imaging, while remaining comfortable for the patients. The purpose of this project is to evaluate the performance of this system for imaging micrometric retinal structures.

The goal of this clinical trial is to to evaluate the changes in retinal microvasculature secondary to intra-ocular pressure changes post intra-vitreal injection in patients with diabetic macular oedema highlighting the effect of prior anterior chamber paracentesis on such changes if present . The main question[s]it aims to answer are: •[is there any effect of post intra-vitreal injection IOP spikes on retinal microvasculature?] •[is there any effect of Prior Anterior Chamber Paracentesis?] Participants in group A will be subjected to an identified approved treatment( intra-vitreal injection)& Participants in group B will be subjected to a prior ACP with the intra-vitreal injection . ]

Diabetic macular oedema (DME) is the main cause of visual impairment (or visual acuity) in patients with diabetic retinopathy, as it leads to progressive thickening of the retina, which in the long term leads to progressive death of the photoreceptor cells. It is therefore important to continue to treat macular oedema that has been progressing for several months or even years (resistant DME). The management of DME necessarily involves controlling diabetes (improving glycated haemoglobin levels) and blood pressure, but this is often not enough. Thus, when DME is significant and leads to a decrease in visual acuity, treatments are administered directly into the eye (intravitreal injections). For some years now, corticosteroids have been injected into the vitreous body (the gel that fills the eyeball) through the white of the eye for their anti-inflammatory properties. Indeed, these drugs improve the permeability of the retinal vessels and thus reduce oedema. These intravitreal implants are most often used in patients who have already undergone cataract surgery (pseudophakic) because corticosteroids also tend to aggravate a cataract. Currently, there are two implants containing corticosteroids that can be injected: the dexamethasone implant and the fluocinolone acetonide implant. These two implants have different properties, particularly with regard to their duration of action. Today, the overall management at 3 years and the quality of life associated with the treatments deserve to be evaluated. This study is the first multicenter controlled trial comparing the two reference corticosteroid treatments in terms of overall cost of treatment and follow-up and patient quality of life, while considering their efficacy and side effects. This evaluation will make it possible to precisely define the respective place of each implant in the management of resistant DME.

The purpose of this clinical trial is to evaluate the safety and tolerability of suprachoroidal microcatheterization with the Oxulumis® device for a randomized treatment with two dose levels of Triesence® in subjects with Diabetic Macular Edema.

The purpose of this study is to evaluate the efficacy and safety of OCS-01 ophthalmic suspension versus vehicle alone in subjects with DME

This study will evaluate the efficacy, safety, and pharmacokinetics of the Port Delivery System with Ranibizumab (PDS) in Participants with Diabetic Macular Edema (DME) when treated every 24 weeks (Q24W) compared with intravitreal ranibizumab 0.5 mg every 4 weeks (Q4W).

Retinal vein occlusion (RVO) is one of the most common causes of vision loss due to retinal vascular disease. Incidence of RVO has been raised in the last years due to increased coexisting systemic vascular risk factors as arterial hypertension, obesity, diabetes mellitus and COVID-19. Macular edema (ME) is a major sight-threatening complication of branch retinal vein occlusion (BRVO) and central retinal vein occlusion (CRVO). BRVO and CRVO have the same pathology, an elevation in the intravascular pressure in the occluded vein leading to vascular wall damage causing leakage of fluid and release of inflammatory cytokines as vascular endothelial growth factor (VEGF), respectively. In the past, the standard treatment for BRVO-related ME was grid laser photocoagulation and for CRVO-related ME was observation. But subsequent randomized controlled trials demonstrated significant functional and anatomical improvements among patients with ME secondary to BRVO or CRVO treated with intravitreal injections of vascular endothelial growth factor (VEGF) inhibitors or corticosteroids compared to those treated with laser only. Anti-VEGF therapy decrease intravenous pressure, enhance blood flow and improve venous diameter and tortuosity. Also, intravitreal corticosteroid injection has been shown to improve vision and central macular thickness (CMT). Dexamethasone intravitreal implant (Ozurdex®, Allergan Inc., Irvine, CA, USA) has potent antiangiogenic and anti-inflammatory effects. Also it decreases the vascular permeability playing an important role in treating ME secondary to RVO. However, majority of eyes have been treated previously then shifted to dexamethasone implant as a second line for treatment of refractory RVO related ME.

Researchers are looking for a better way to treat people who have diabetic macular edema (DME). Diabetic macular edema (DME) is a complication of diabetes. Consistently high blood sugar due to poor glucose control over time can damage small blood vessels in the body, including the eye. Damaged blood vessels in the eye may lead to leakage of the fluid into the central part of the retina at the back of the eye (also called macula) where sharp, straight-ahead vision occurs. Fluid accumulation makes the macula swell and results in reduced vision. If not treated, DME can result in complete loss of central detailed vision. The study treatment intravitreal aflibercept (also called BAY865321) works by blocking VEGFR-1 receptor activity. Intravitreal aflibercept is already approved in over 105 countries for doctors to prescribe to people with DME. In India, aflibercept is approved conditionally for people with DME. The reason for this is that the sponsor was asked to collect more safety data for intravitreal aflibercept in Indian people with DME. The main purpose of this study is to collect more data to learn how safe intravitreal aflibercept is in Indian people with DME. To see how safe intravitreal aflibercept is, the researchers will collect the information/data on the medical problems the participants may have during the study, and which may or may not be related to the study treatment. These medical problems are also known as "adverse events" (AEs). AEs will be categorized according to relatedness, seriousness, discontinuation of therapy, action taken and outcome. The study participants will receive aflibercept as an injection directly into the space in the back of the eye once every 4 weeks in the first 5 months, followed by one injection every 8 weeks for the rest of the study duration. Only one eye per participant to be treated with aflibercept will be considered for the study. Each participant will be in the study for approximately 52 weeks. The treatment duration will be 48 weeks. For each participant 11 visits to the study site are planned. The study team will perform additional safety calls 16 to 36 hours after each visit starting at visit 2. Alternatively, an additional safety visit can be arranged/planned for the day after treatment. During the study, the study team will: take blood and urine samples examine the participants' eyes do physical examinations examine heart health using ECG check vital signs ask the participants questions about how they are feeling and what adverse events they are having. in- administer the study drug At the end of the study the participants will be switched to commercially available treatment if recommended by the study doctor/if the participant still benefits from the treatment.

This study is designed as a Multi-center, open-label, dose escalation phase I trial to evaluate the safety and tolerability of a single and multiple intravitreal injections of IBI324 in subjects with DME

This trial is a phase II, multi-center, single-masked (assessors) dose-ranging study designed to evaluate the comparative safety and preliminary efficacy of two dosage regimens of the IBE-814 IVT Dexamethasone Implant in patients with DMO and RVO.