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Active clinical trials for "Macular Degeneration"

Results 851-860 of 1337

Rehabilitating Vision Loss in Veterans With Age-Related Macular Degeneration

Age-related Macular Degeneration (AMD)

This study will help develop new methods of rehabilitating Veterans with vision loss due to Age-related macular degeneration.

Not yet recruiting20 enrollment criteria

Effect of Vitrectomy on the Evolution of Refractory Diabetic Macular Edema

EdemaMacular Edema4 more

For patients with at least one eye with non-tractional diabetic edema refractory to 6 months of anti-VEGF injections (anti Vascular endothelial growth factor injections), a randomization is done: one group of patients will receive the standard treatment (anti-VEGF injections, switch to another anti-VEGF drug, additional photocoagulation or any other treatment except vitrectomy during the first 6 months after the randomisation) and the other group of patients will receive vitrectomy (with only additional photocoagulation during the first 6 months, then any treatment from 6 months after the randomization).

Withdrawn30 enrollment criteria

Preparation of Patient Autologous Induced Pluripotent Stem Cell-derived Retinal Cells for AMD

Age-Related Macular Degeneration

This project intends to collect participant somatic cells to prepare autologous induced pluripotent stem cell-derived retinal cells for future cell therapy of age-related macular degeneration patient.

Not yet recruiting28 enrollment criteria

Optical Coherence Tomography Angiography Criteria Of The Choroidal Neovascular Membrane In Wet Age...

Choroidal Neovascular Membrane In Wet Age Related Macular Degeneration And In Pathological Myopia

This study aims to compare choroidal neo-vascular membrane criteria in cases of age-related macular degeneration and cases of pathological myopia.

Not yet recruiting3 enrollment criteria

Use of Self-management Group to Improve Quality of Life in Patients With Low Vision

Age Related Macular Degeneration

120 Patients with visual acuity <6/12 will be randomized to receive either usual care or participate in a 6-week, 2 hour 'Living with Vision Loss' program led by trained leaders. We hypothesize that a structured self-management low-vision rehabilitation program provides a greater improvement in participation in daily activities, and improves quality of life in vision-impaired people compared to the provision of the usual low vision rehabilitation services. We also plan to document barriers that prevent patients with low vision (visual acuity <6/12) from participating in self-management course.

Withdrawn8 enrollment criteria

Genetic Biomarkers for the Response to Anti-VEGF (Vascular Endothelial Growth Factor).Treatment...

Age-Related Macular Degeneration

Age-Related Macular Degeneration (ARMD) is the most common cause of blindness in the adult population of the Western World. It affects the macula - the region of the retina most rich in photoreceptors and responsible for central vision. The ethiology of ARMD remains poorly understood. Population-based studies have demonstrated a complex ethiology, with contributions from a combination of genetic and environmental factors. Two major forms of ARMD are clinically distinguishable: the dry and wet form. The latter represents the more aggressive clinical subgroup, and is characterized by the abnormal growth of new blood vessels (neovascularization) under the macula, thus leading to the accumulation of fluid under the retina, bleeding, progression to fibrosis, and finally loss of central vision. The pathogenesis of this neovascularization is not fully understood, although the VEGF pathway is well known to be involved in angiogenesis and was implicated in the development of the new vessels under the macula. The VEGFs are the most specific and potent stimulators of the angiogenesis. Molecules that bind and inactivate the VEGF have been developed for the treatment of ARMD and they are applied in ARMD clinic through intra vitreal injections.The difference seen in response to anti VEGF treatment for ARMD between the patients is suggestive for the presence of factors influencing the effect of the drug. Some of these could be genetic variants within genes involved in ARMD pathogenesis or VEGF pathway. Few associations with markers within genes previously found to be related with the pathogenesis of ARMD have been found. It remains unknown whether variants involved in the anti VEGF treatment response could influence the therapeutic outcome. The purpose of this trial is to evaluate the association between a panel of selected polymorphic markers in the VEGF pathway and the response to therapy with anti VEGF antibody for ARMD. The hypothesis is that the individual genotype influences the response to the anti VEGF. This can lead to identification of genetic biomarkers allowing treatment individualization and optimization of the visual outcomes.

Completed4 enrollment criteria

Comparison of Cytokine Profiles in Aqueous Humor of Patients With Age Related Macular Degeneration...

Macular DegenerationAge-Related

Age-related macular degeneration (AMD) affects 2 million people in France. It characterized by progressive degeneration of the central area of the retina allowing detailed vision. It is the main cause of irreversible blindness in France. All patients initially present an early form, the latter can evolve in two different ways: the atrophic form, which progresses slowly, and the exudative or neovascular form, of more rapid evolution. While the treatment of exudative AMD has improved dramatically in recent years, there is currently no therapy for atrophic AMD. Recently, it has been demonstrated in atrophic AMD, an accumulation of inflammatory cells, macrophages, in the sub-retinal space. This space is located between the pigment epithelium (PE) and the photoreceptors. It is physiologically devoid of immune cells (immune privilege). Macrophages will secrete many pro-inflammatory molecules, such as cytokines. It has been shown in mouse models that some cytokines (IL-1beta, IL6 et TNFalpha) have a deleterious role on (PE) and photoreceptors. The identification of specific cytokines in the aqueous humor of patients with atrophic AMD would help to better understand this disease and consider potential targeted therapies. This study will be conducted in the ophthalmology department of the Croix-Rousse Hospital in Lyon. 80 patients will be recruited and divided into 4 groups: three experimental groups of 20 patients with : Early / Intermediate AMD, atrophic AMD or exudative AMD, and one control group of 20 patients without signs of AMD. Assays of the markers will be performed using the Luminex® technique on aqueous humor and blood samples collected for all patients during cataract surgery. The concentrations obtained in the aqueous humor will be normalized on their respective blood levels in order to confirm the intraocular secretion of these markers,. The identification of particular cytokine profiles in atrophic AMD compared to other forms of AMD would support emerging hypotheses of involvement of specific inflammatory cells in this pathology. There is currently no treatment available for atrophic AMD. If molecular screening identifies one or more specific biomarkers, targeted therapy may be considered.

Completed21 enrollment criteria

Pharmacokinetics and Pharmacodynamics Study of LBS-008 in Healthy Volunteers Aged 50-85

Healthy VolunteerDry Age-related Macular Degeneration

This is a Phase 1b, parallel single-dose study to evaluate the pharmacokinetics (PK) and pharmacodynamics (PD) of Tinlarebant when administered as an oral dose to elderly healthy volunteers. This study will evaluate 2 dose levels in 2 cohorts comprising up to a total of 16 participants (8 per cohort). Dose levels will be evaluated in parallel.

Completed10 enrollment criteria

Systemic Pharmacokinetics Following Intravitreal Injections of Anti-VEGF

Age-related Macular DegenerationDiabetic Macular Edema1 more

Comparable data for bevacizumab and aflibercept are lacking, as are studies comparing the systemic levels of ranibizumab, bevacizumab, and aflibercept and their relative effects on circulating vascular endothelial growth factor. In the present prospective study, the investigators evaluated serum drug levels and plasma free vascular endothelial growth factor (VEGF) levels in patients with neovascular age-related macular degeneration following intravitreal injections of ranibizumab, bevacizumab and aflibercept.

Completed6 enrollment criteria

Plasma Levels of Vascular Endothelial Growth Factor Before and After Intravitreal Injection of Aflibercept...

Exudative Age-related Macular Degeneration

The purpose of this study is to examine the plasma concentration of vascular endothelial growth factor (VEGF) after standard treatment with one of the newest growth factor inhibitors, aflibercept (Eylea). Patients with exudative age-related macular degeneration (AMD) are treated today with anti-growth factors (anti-VEGF). Eylea appears to have a longer duration of action in the eye and a more powerful effect on the edema in the macula than previously used growth factor inhibitors. This means that the disease can be controlled with fewer number of injections into the eye and the investigators can therefore reduce the risk of complications associated with this type of treatment. It is unclear what the plasma VEGF concentration after treatment with Eylea into the eye in patients with wet age-related macular degeneration is.

Completed21 enrollment criteria
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