View clinical trials related to Geographic Atrophy.
Filter by:Age-related macular degeneration is one of the leading causes of blindness worldwide. The factors that induce the progression of geographic atrophy, the advanced form of dry age-related macular degeneration, remain poorly understood. The aims of this study are to describe the natural history of geographic atrophy and identify potential risk factors associated with a faster spread of atrophy that may be used to develop rational therapies.
To conduct a precision study to assess the microperimetry function of the Spectral OCT/SLO. The study will assess variability across measurements taken by three different operator-device configuration across clinical sites, variability between subjects within a given operator-device configuration, and variability within a subject for a single operator-device configuration.
To investigate pathomorphological and functional variations of choroidal neovascularization (CNV) in age-related macular degeneration (AMD) in a Chinese population using optical coherence tomography (OCT) to find which kinds of Fundus characteristics indicated exudative AMD.
The purpose of this Phase I/II study is to investigate the safety and preliminary efficacy of unilateral subretinal transplantation of HuCNS-SC cells in subjects with geographic atrophy secondary to age-related macular degeneration.
This study was conducted in two parts; Part A and Part B: Part B was initially planned to include two cohorts. Cohort 2 was cancelled following an interim analysis for efficacy in Part A of the study, and not due to any safety issues or concerns. Cohort 2 is not referred to again and part B cohort 1 is referred to as part B alone in the remainder of the document and is the subject of this report. Part B was conducted to assess the safety and tolerability of a single intravitreal (IVT) LFG316 10 mg/100 µL injection. There was no efficacy evaluation in Part B. The study employed a multicenter, randomized, sham - controlled, single masked design. Eight patients with advanced AMD were planned to be randomized in a 3:1 ratio to receive a single IVT dose of LFG316 (10 mg/100 µL) or sham injection. Patients assigned to a sham injection were treated the same as those assigned to LFG316, except that the hub of an empty syringe (without needle) was placed against the eye instead of the IVT injection.
This study will determine whether a drug called sirolimus is safe to give to people with geographic atrophy (GA) and if it can help preserve vision in patients. GA is an advanced form of dry age-related macular degeneration (AMD). AMD affects the macula, the central part of the retina at the back of the eye needed for sharp, clear vision. There are two types of AMD, wet and dry. In dry AMD, cells in the macula die. GA may be partially caused by inflammation. Sirolimus helps prevent inflammation and therefore may help people with GA. Researchers want to see whether sirolimus can help prevent vision loss in people with GA. People at least 56 years of age who have GA related to AMD in both eyes may be eligible for this study. This study requires at least 8 visits to the National Eye Institute over 1 year. Study visits will be every 2 months for 1 year. Participants will undergo the following procedures: - Participants will be screened with a medical history and physical exam. They will also have blood and urine tests, and eye exams. One eye will be selected as the study eye to receive the sirolimus injections. - Participants will have a sirolimus injection into the study eye at the first visit and every 2 months thereafter unless contraindicated. There will be a follow-up eye exam 1 month after the first injection.
The purpose of this study is to determine the safety and efficacy of GSK933776 in the treatment of geographic atrophy secondary to age-related macular degeneration.
The objective of this study is to compare Cirrus HD-OCT automated measurements of the illumination area under the retinal pigment epithelium (RPE) to expert manual measurements of areas of hypofluorescence typical of geographic atrophy in fundus autofluorescence (FAF) images.
This is a Phase Ib/II, multicenter, randomized, single-masked, sham-injection-controlled study of safety, tolerability, and evidence of activity of FCFD4514S intravitreal injections administered monthly or every other month in patients with geographic atrophy.
The main purpose of this study to evaluate the safety and tolerability of CNTO 2476 administered subretinally (beneath the retina) using the iTrack Model 275 micro catheter in patients with visual acuity (acuteness or clearness of vision) impairment associated with the geographic atrophy (GA: partial or complete wasting away of retinal layer below the retina) manifestation of age-related macular degeneration (AMD: medical condition which usually affects older adults and results in a loss of vision in the center of the visual field [the macula] because of damage to the retina).