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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.
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.
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.
NCT06116890
The purpose of this study is to evaluate efficacy and safety of KHK4951 eye drops in patients with nAMD.
NCT05210803
This is a prospective, observational study designed to evaluate the long-term safety and efficacy of RGX-314. Eligible participants are those who were previously enrolled in a clinical study of nAMD in which they received suprachoroidal space (SCS) administration of RGX-314. Enrollment of each participant in the current study should occur after the participant has completed either the end of study or early discontinuation visit in the previous (parent) clinical study. Participants will be followed for up to 5 years after RGX-314 administration (inclusive of the parent study). As such, the total study duration for each participant may vary depending on when they enroll in the current study following RGX-314 administration in the parent study.
NCT06817915
This is a research plan from the University of Munich (LMU) that aims to study how the use of AI reports can impact ophthalmologists' decisions regarding treatment for patients with neovascular age-related macular degeneration (nAMD). This disease is a leading cause of vision loss, and while anti-VEGF treatments are effective, they require careful monitoring and retreatment decisions to maximize benefits. The study will involve up to 1000 ophthalmologists with varying levels of expertise. These ophthalmologists will review SD-OCT scans and make treatment decisions before and after reviewing AI-generated reports. The primary objective is to compare these decisions and see how the AI reports influence them. Secondary objectives include assessing the accuracy and safety of the AI reports.
NCT06398080
The purpose of this research study is to observe the patient's clinical care and how EYLEA® HD is used as a treatment in real-world settings. Patients are asked to join the study because they have either neovascular age-related macular degeneration (nAMD/wet age-related macular degeneration \[AMD\]) or diabetic macular edema (DME). Patients cannot have used EYLEA® HD in the past and the doctor must be planning to treat nAMD or DME with a new prescription of EYLEA® HD (aflibercept 8 mg).
NCT06623279
Age-related macular degeneration (AMD) leads to severe and irreversible vision loss, while neovascular AMD (nAMD) accounts for 80-90% of AMD blindness. Current anti-VEGF therapies are the standard of care, but these therapies require life-long repeated intraocular injections. These frequent intravitreal injections increase the risk of complications, including submacular hemorrhage, intraocular hypertension, inflammation, and retinal detachment. Therefore, repeated treatments for nAMD place a substantial burden on healthcare systems, patients, and their caregivers. Additionally, approximately 25-35% of individuals with aggressive nAMD show suboptimal responses to the anti-VEGF therapies, experience treatment-extended failure, or require intensive, frequent intraocular injections, and do not prevent irreversible vision loss. HG202 is a CRISPR/Cas13 RNA-editing therapy delivered through one single AAV vector to partially knock down the expression of VEGFA and thus inhibit CNV formation in AMD. The long-term, stable delivery of HG202 following a one-time gene-editing therapy treatment for nAMD may potentially reduce the frequent injections and the potential risks of currently available anti-VEGF therapies since it does not rely on the long-term expression of anti-VEGF antibodies.