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Showing 1-20 of 49 trials
NCT05407636
ABBV-RGX-314 (also known as RGX-314 and surabgene lomparvovec (sura-vec)) is being developed as a novel one-time gene therapy for the treatment of neovascular (wet) age-related macular degeneration (wet AMD). Wet AMD is characterized by loss of vision due to new, leaky blood vessel formation in the retina. Wet AMD is a significant cause of vision loss in the United States, Europe and Japan, with up to 2 million people living with wet AMD in these geographies alone. Current anti-vascular endothelial growth factor (VEGF) therapies have significantly changed the landscape for treatment of wet AMD, becoming the standard of care due to their ability to prevent progression of vision loss in the majority of patients. These therapies, however, require life-long intraocular injections, typically repeated every four to 12 weeks in frequency, to maintain efficacy. Due to the burden of treatment, patients often experience a decline in vision with reduced frequency of treatment over time. ABBV-RGX-314 is being developed as a potential one-time treatment for wet AMD.
NCT07308639
The main goal of this study is to find out how common certain eye diseases are in Germany and how they have changed over time. The diseases being studied are: nAMD (neovascular age-related macular degeneration): a condition that affects the central part of the retina and can cause vision loss in older adults. DME (diabetic macular edema): a swelling in the central part of the retina caused by diabetes, which can also lead to vision problems. RVO (retinal vein occlusion): a blockage of the veins in the retina, which can cause sudden vision loss. Researchers will look at data collected from 2009 to 2024 to see how often these diseases occur (incidence) and how many people have them at a given time (prevalence). They will use two large sets of health data from Germany, called FDZ and FDGP. The main question is: How do the numbers of new and existing cases of nAMD, DME, and RVO compare between the two data sources (FDZ and FDGP) in Germany from 2009 to 2024? The study also wants to find out if factors like age, other health problems, and medications affect how common these eye diseases are. Another goal is to see how many people with these eye diseases are treated with a type of medicine called anti-VEGF, which is used to slow down or stop vision loss. In summary, this study will help us understand how these eye diseases affect people in Germany, how they are treated, and whether different groups of people are more likely to get them.
NCT06704009
Phase 1/2 Trial NT-101 Topical Ophthalmic Solution in Patients with Wet Age-Related Macular Degeneration (AMD)
NCT06668064
This is a phase 3 randomized, double -masked study comparing the efficacy of EYP-1901 against Aflibercept.
NCT07481500
This randomized controlled trial compares two techniques for eyelid retraction during intravitreal injection (IVI) of anti-VEGF agents: the standard wire eyelid speculum (Group A) versus cotton-tipped applicator retraction (Group B) in patients with neovascular AMD, diabetic macular edema, or retinal vein occlusion. The study evaluates four outcomes: (1) patient pain perception measured by a 10-cm visual analogue scale immediately after injection; (2) procedure duration from retraction device placement to removal; (3) patient satisfaction assessed by a 5-item Likert scale; and (4) safety including rates of subconjunctival hemorrhage, corneal abrasion, endophthalmitis, and intraocular pressure elevation. A novel syringe cap technique using the Terumo 31G insulin syringe plastic cap as an injection-site marker (3.5 mm for pseudophakic eyes, 5.0 mm for phakic eyes from the limbus) is employed in both groups, replacing the traditional caliper. Randomization is stratified by diagnosis and prior injection history using permuted block randomization (block sizes 4 and 6). The target sample size is 120 patients (60 per group) at Walailak University Hospital, Nakhon Si Thammarat, Thailand.
NCT06929143
This is an observational study in which data already collected from participants with neovascular age-related macular degeneration (nAMD) or diabetic macular edema (DME) is studied. In observational studies, only observations are made without participants receiving any advice or any changes to healthcare. The eye disorders, nAMD and DME, affect the macula, the central part of the retina at the back of the eye. This leads to blurry vision or blind spots, making everyday activities like reading or sewing difficult. While nAMD is linked to aging, DME is related to diabetes. Both conditions require similar treatment to help improve vision. Aflibercept 8 milligrams (mg) is already approved in Japan for doctors to prescribe to people with nAMD or DME. It is a drug injected into the eye. It works by blocking a protein called vascular endothelial growth factor (VEGF), which causes abnormal growth and leakage of blood vessels at the back of the eye. The participants in this study are already receiving treatment with aflibercept 8 mg as part of their regular care from their doctors. There is limited data available on the use of aflibercept 8 mg in Japan. Data from routine medical practice will inform treatment in Japanese and other Asian populations. The main purpose of this study is to learn more about the disease and patient characteristics of Japanese participants with nAMD and/or DME who receive aflibercept 8 mg during their routine healthcare, and how they use it. To learn this, the study will use 2 methods: Method 1: Researchers will study the health details of participants when they first started aflibercept 8 mg. Method 2: Researchers will study the participants' data collected over 1 year to see how they used aflibercept 8 mg. The data will come from a claims database called DeSC Healthcare Inc. The data will be collected from April 2023 to March 2025 for Method 1, and from April 2023 to March 2026 for Method 2. Researchers will only look at the information from participants in Japan. In this study, only available data from routine care are collected. No visits or tests are required as part of this study.
NCT06683742
This is a phase 3 randomized, double -masked study comparing the efficacy of EYP-1901 against Aflibercept.
NCT06075147
This is an observational study in which only data are collected from people who have already been prescribed aflibercept 8 mg by their own doctors. In this study, data from adults with visual impairment due to neovascular age-related macular degeneration (nAMD) or diabetic macula edema (DME) will be collected and studied. Visual impairment is any degree of vision loss that affects a person's ability to perform daily activities. nAMD is an eye disorder that causes vision loss due to the growth of abnormal blood vessels that leak blood or retinal fluid into the macula (the central part of the retina). nAMD is a leading cause of vision loss for people aged 50 and older. DME is a diabetes-related eye disorder. In DME, the macula swells up due to fluid leakage from damaged blood vessels, resulting in vision problems. Aflibercept 8 mg is a drug that is injected into the eye. It works by blocking a protein called vascular endothelial growth factor (VEGF) which causes abnormal growth and leakage of blood vessels at the back of the eye. Aflibercept 8 mg has been submitted for approval for the treatment of visual impairment due to nAMD and DME based on the results from 2 studies called PHOTON and PULSAR. This study will begin once approval is obtained. Currently, no real-world data are available for aflibercept 8 mg. The main purpose of this study is to collect more information about how well aflibercept 8 mg injection works in people with nAMD and DME. This study will include participants who have not received any prior treatment for nAMD or DME and participants who have. The main information that researchers will collect: the change in vision test scores called the best corrected visual acuity (BCVA) after 12 months of treatment. Data will be collected from February 2024 to September 2027 and will cover a period of up to 24 months per participant. The data will be collected using medical records and by interviewing the patients during regular visits that take place in routine practice. Researchers will observe participants from the first injection of aflibercept 8 mg until the end of the observation. In this study, only available data from regular visits will be collected. No visits or tests are required as part of this study.
NCT04514653
This interventional study is being conducted with an investigational gene therapy treatment called ABBV-RGX-314 (also known as RGX-314) and is being developed as a potential one-time gene therapy treatment for neovascular (wet) age-related macular degeneration (wet AMD or nAMD). The typical treatment for nAMD is frequent injections of anti-VEGF therapy. Researchers are testing ABBV-RGX-314 to see if it has similar effects as the current approved standard of care, such as Lucentis® or Eylea® injections. The duration of this study will be up to 52 weeks or for ranibizumab control participants who cross over to ABBV-RGX-314 after week 52, up to 80 weeks post-randomization. The primary outcome measure for this investigational study is to evaluate the mean change in best-corrected visual acuity (BCVA) for ABBV-RGX-314 compared with ranibizumab monthly at the Week 40 visit.
NCT07424235
Geographic atrophy (GA) is an advanced form of dry age-related macular degeneration that leads to progressive and irreversible vision loss. The course of visual decline varies widely among patients, and it is not always clear which anatomical features of the retina are associated with faster loss of vision. This retrospective observational study aims to describe the natural history of vision loss in patients with geographic atrophy who have characteristics similar to those enrolled in the ARCHER II clinical trial. The study will analyze previously collected clinical and imaging data from patients followed during routine clinical care at a single center. The main goal of the study is to evaluate the relationship between changes in visual function and retinal anatomical features, such as the size and location of atrophic lesions and retinal layer integrity, using fundus autofluorescence and optical coherence tomography images. No treatments or study procedures are performed as part of this research. All data used in the study were collected during standard clinical practice and analyzed retrospectively.
NCT05562947
This study will evaluate the efficacy, safety, and PK of ranibizumab 100 milligrams per milliliter (mg/mL) delivered every 24 weeks (Q24W) via the PDS implant compared with ranibizumab 0.5 milligrams (mg) delivered every 4 weeks (Q4W) as intravitreal (IVT) injection in chinese participants with nAMD.
NCT07375901
To evaluate the status of the blood-aqueous barrier by objectively measuring protein concentration in the aqueous humor using laser flare photometry (LFP) in patients with exudative age-related macular degeneration (AMD) undergoing anti-angiogenic therapy.
NCT07365371
The goal of this clinical trial is to investigate the efficacy, durability, and safety of aflibercept 8 mg in treating Polypoidal Choroidal Vasculopathy (PCV) in Chinese naive patients. The main questions it aims to answer are: 1. What is the change in Best Corrected Visual Acuity (BCVA) at Week 52 from baseline in different treatment regimens? 2. What proportion of patients achieve sustained disease control after receiving the loading dose? Participants will: * Receive intravitreal aflibercept 8 mg loading doses (3 initial monthly doses). * In Arm A: * Undergo reinjections based on disease activity, with follow-up examinations every 4 weeks until week 48. * Return for an end-of-study visit at week 52. * In Arm B: * Undergo an examination at week 12 and subsequent treatments based on disease activity, with a maximum interval of 20 weeks and a minimum interval of 8 weeks between doses if the disease remains inactive. * Return for an end-of-study visit at week 52. This study will assess the efficacy, safety and durability of aflibercept 8mg in these 2 regimens.
NCT05547633
An inflammatory component associated with AMD has been highlighted by genetic associations of predisposition to AMD, as well as by the recently demonstrated link between AMD and periodontitis. Some patients followed at the Fondation Adolphe de Rothschild Hospital for wet AMD seemed to show an improvement of neovascular activity (less need for intravitreal injections of anti-VEGF) after treatment of their sinusitis. The investigators would therefore like to assess the link between AMD and sinusitis, an infection close to the site of AMD.
NCT05170048
This is a parallel, randomized, open-label, controlled study to evaluate the efficacy and safety of oral EG-301 in patients with intermediate non-exudative (dry) age-related macular degeneration (dAMD). Ninety patients will be randomly allocated in a 2:1 ratio to one of two treatment arms for at least 6 months duration. The two treatment arms are: 1. AREDS2 supplements (Control Group, N=30) 2. AREDS2 supplements plus EG-DPMP-01 150 mg daily (Experimental Group, N=60)
NCT07249307
This observational study aims to establish key technologies for high-throughput, large-model-based AI-assisted diagnosis using optical coherence tomography (OCT) and OCT angiography (OCTA). The study will collect real-world OCT/OCTA images and corresponding clinical information from patients with common blinding retinal and optic nerve diseases at Peking Union Medical College Hospital. A high-throughput diagnostic framework based on large-scale artificial intelligence models will be developed and evaluated. The primary objective is to determine the diagnostic performance of the AI system, including its ability to identify diabetic retinopathy, branch retinal vein occlusion, central retinal vein occlusion, age-related macular degeneration, pathologic myopic choroidal neovascularization, and glaucoma-related optic nerve damage. The results of this study are expected to support the development of standardized, efficient, and scalable AI-assisted diagnostic pathways for OCT imaging in clinical practice.
NCT06116890
The purpose of this study is to evaluate efficacy and safety of KHK4951 eye drops in patients with nAMD.
NCT07143526
The goal of this observational study is to compare swept source optical coherence tomography devices ability to detect macular neovascularisation when there is a large pigment epithelium detachment higher than 250 microns
NCT06737354
The goal of this clinical trial is to evaluate the safety and efficacy of IVB103 injection in subjects with nAMD.
NCT03478865
Background: Age-related macular degeneration (AMD) is an eye disease. It is the leading cause of vision loss in people over 55 in the U.S. Changes in the eye can make it difficult for the eye to adjust to low light. This is known as dark adaptation. Identifying and watching the early to middle stages of AMD and changes in dark adaptation might help researchers develop new treatments to stop the disease before it becomes severe. Taking vitamin A might help improve vision in people with AMD. Objectives: To see if taking 16,000 IU of vitamin A per day improves vision in people with AMD. Also to improve understanding of AMD and associated dark adaptation. Eligibility: Adults ages 50 and older with AMD and normal liver function Design: Participants will be screened with: Medical and eye disease history Eye exam: The pupil will be dilated with eye drops. Pictures will be taken of the retina and the inside of the eye. Including the screening visit, participants will have at least 5 visits. They will be about once a month over 6 months. Visits include: Questions about eye problems in certain light Eye exam Blood and urine tests Dark adaptation protocol: Participants will sit at a machine in a dark room. They will look into the machine and push a button when they see a light. This lasts 20-30 minutes. Participants will take a vitamin A supplement by mouth once a day for 2 months. They will record when they take the pills in a diary.