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Showing 1-20 of 48 trials
NCT05747430
This is a randomized, double-masked study to evaluate the tolerability and safety of IRX-101 versus 5% povidone-iodine (PI) in subjects receiving intravitreal anti-VEGF injections. The study will be conducted in up to 15 centers in the United States (US).
NCT05750589
This is a randomized, double-masked study to evaluate the tolerability and safety of IRX-101 versus 5% povidone-iodine (PI) in subjects receiving intravitreal anti-VEGF injections.
NCT07270133
A considerable hurdle to the development of novel, more effective therapies for diabetic retinal disease is the limited number of primary endpoints available for use in regulatory trials. Current endpoints necessitate long trial durations and a greater number of participants to show efficacy. Thus, a better understanding of the structural and functional changes in the retina occurring in people with diabetes is essential for developing primary endpoints and validating surrogate and clinical endpoints.
NCT07401459
This study is a multicenter randomized controlled trial evaluating the effectiveness and safety of EyeAgent, a multimodal artificial intelligence (AI) agent designed to assist ophthalmologists in clinical decision-making. Participants will be recruited from ophthalmology clinics and hospitals in Hong Kong and mainland China. The AI agent acts as a digital co-pilot, analyzing patient images and clinical history to provide diagnostic and management recommendations. The trial aims to determine whether the use of the AI agent improves diagnostic accuracy, treatment decision-making performance, report generation, workflow efficiency, and user satisfaction compared to standard clinical practice.
NCT03846193
This was an open label first in human Phase I/II multicentre study of GT005 in subjects with Macular Atrophy due to Age-related macular degeneration (AMD).
NCT07338461
The goal of this pilot study is to compare image quality between the investigational devices (R1 and HighRes OCT) and the SPECTRALIS (cleared) in adult participants with normal and/or pathology eyes. Participants will be imaged with different imaging modalities and scan protocols on all study devices.
NCT06789445
Study OpCT-001-101 is a Phase 1/2a first-in-human, multisite, 2-part interventional study to evaluate the safety, tolerability, and the effect on clinical outcomes of OpCT-001 in up to approximately 54 adults with primary photoreceptor (PR) disease. Phase 1 will focus on safety and features a dose-escalation design. Phase 2 is designed to gather additional safety data and assess the effect of OpCT-001 on measures of visual function, functional vision, and anatomic measures of engraftment in different clinical subgroups.
NCT06380075
The goal of this research study is to compare two ultrawide field cameras to the gold standard imaging system to evaluate the back of the eye. The main question it aims to answer is the same results and information can be acquired from all of the cameras for evaluating and monitoring inherited retinal diseases (IRDs). Participants will: * undergo pupillary dilation * have photographs taken of the inside of the eyes using three different cameras
NCT03713268
The overall five-year goals of the project are to develop novel technology to provide actionable new information through provision of live volumetric imaging during surgery, improving surgical practice and outcomes. The investigators believe this technology will enable novel ophthalmic and other microsurgeries not possible due to current limitations in surgical visualization.
NCT06841575
The goal of the current study is to conduct a pilot study to test a new version of the handheld OCT device capable of auto-alignment to image the retina in adult volunteers, and adult and pediatric patients in clinic.
NCT07165626
The goal of this interventional study is to assess the dynamics of structural and functional retinal changes in eyes with epiretinal membrane (ERM) after pars plana vitrectomy (PPV). Other study objectives include: * Identification of preoperative prognostic factors associated with better postoperative outcomes. * Evaluation of the utility of advanced, highly specialized retinal function testing as diagnostic-prognostic tools in patients after ERM surgery. * Definition of updated qualification criteria and surgical indications for vitrectomy in patients with ERM. Researchers will compare a laser-treated group (additional subthreshold micropulse yellow laser (577 nm) at 1 month post-PPV) with a nonlaser group (no additional laser) to see whether early postoperative subtreshold micropulse laser therapy (SMLT) affects selected functional and morphometric retinal parameters after ERM peeling. This prospective, randomized, controlled, single-center study includes 100 pseudophakic patients scheduled for surgical ERM removal. Eligibility requires a visually significant ERM with metamorphopsia and/or reduced best-corrected visual acuity. Participants are classified preoperatively by OCT-based Govetto staging and randomized 1:1 to either the laser-treated group or the non-laser (control) group. All patients undergo standard 25-gauge PPV with ERM peeling, followed by ILM peeling and SF₆ gas tamponade, performed by a single experienced vitreoretinal surgeon. Follow-up visits occur preoperatively, and at 1 and 4 months postoperatively; SMLT is performed at 1 month in the laser arm. Baseline questionnaire captures metamorphopsia presence (yes/no) and duration (\<6, 6-12, \>12 months). Assessments include: * best corrected visual acuity (BCVA) \[Snellen and ETDRS charts\] * enhanced depth imaging optical coherence tomography (EDI-OCT) \[retinal thickness in the nine Early Treatment Diabetic Retinopathy Study (ETDRS) subfields (μm); total retinal volume (mm³); subfoveal choroidal thickness (μm); choroidal area (mm²)\] * OCT angiography (OCTA) \[foveal avascular zone (FAZ) area in both the superficial (SVC) and deep vascular complexes (DVC) (mm²)\] * multifocal electroretinography (mfERG) \[P1-wave retinal response density (nV/deg²) in rings R1-R6; P1-wave implicit (peak) time in rings R1-R6 (ms)\] * microperimetry (average threshold (dB); fixation stability P1/P2; fixation variability via 63% and 95% bivariate contour ellipse area (BCEA)\] * wide-field fundus imaging Statistical analyses will be performed at a significance level of p\<0.05, using appropriate parametric or nonparametric methods selected based on data distribution and measurement scale.
NCT06011798
The goal of this clinical trial is to assess the efficacy and safety of multiple doses of foselutoclax (UBX1325) in patients with Diabetic Macular Edema. The main questions the study aims to answer are: * Assess the efficacy of foselutoclax compared to aflibercept * Assess the safety and tolerability of foselutoclax
NCT05797896
An observational study to investigate the natural history and evaluate biomarkers of participants with geographic atrophy secondary to age-related macular degeneration
NCT06305416
Macular edema in diabetes, defined as retinal thickening within two disc diameters of the center of the macula, results from retinal microvascular changes that compromise the blood-retinal barrier, causing leakage of plasma constituents into the surrounding retina and consequently retinal edema. Thickening of the basement membrane and reduction in the number of pericytes are believed to lead to increased permeability and incompetence of the retinal vasculature. This compromise of the blood-retinal barrier leads to the leakage of plasma constituents into the surrounding retina with subsequent retinal edema. Hypoxia produced by this mechanism can also stimulate the production of vascular endothelial growth factor (VEGF). Vascular endothelial growth factor (VEGF) increases retinal vascular permeability, causes breakdown of the blood-retina barrier and results in retinal edema. Diabetic macular edema (DME) is the most common cause of visual reduction in patients with Diabetes Mellitus. The prevalence of DME globally is around 6.8 %. Diabetic Retinopathy (DR) is the most common microvascular complication of diabetes and the leading cause of blindness worldwide. DME is a complication of diabetic retinopathy that affects the macula, which is located at the center of the retina and responsible for central vision. Bangladesh is the 10th country in the world for the number of adults living with diabetes with some 7.1 million (5.3-12.0). In Bangladesh, it is therefore expected that diabetic secondary complications, like DR, will increase along with the rising trend of diabetes mellitus. The use of therapeutic monoclonal antibodies has revolutionized in the treatment of many diseases. In recent years, millions of patients have been successfully treated with these biological agents. Ranibizumab is one such therapeutic monoclonal antibody for intraocular use. Ranibizumab is a humanized, recombinant, immunoglobulin G1 monoclonal antibody fragment against vascular endothelial growth factor A (VEGF-A) and thus prevents choroidal neovascularization. The small size of ranibizumab allows for enhanced diffusion into the retina and choroid.
NCT05921162
This study "A Long-Term Follow-Up Study in Subjects Who Received an Adeno-Associated Viral Vector Serotype 2 Containing the Multi-Characteristic Opsin Gene (vMCO-I) Administered Via Intravitreal Injection" is an observational study and will be conducted following Good Clinical Practice (GCP)- International Conference on Harmonization (ICH) guidelines. Eligible subjects satisfying all inclusion and none of the exclusion criteria will be enrolled. All subject who completed the parent clinical study (NSCT/CT/18/01) will undergo safety and efficacy assessments up to 5 years post study drug injection
NCT03894020
An observational study to evaluate the natural progression of dry AMD in genetically defined subjects
NCT03913130
Subjects completing participation in study PQ-110-001 (EudraCT 2017-000813-22 / NCT03140969) will be given the opportunity to enroll into the extension study for continued dosing if available data support current and/or future benefits for the subject. Study PQ-110-002 will provide long-term safety, tolerability, pharmacokinetic (PK), and efficacy data of QR-110.
NCT06520410
This study aims to study the safety and efficacy of using an 18 mm short vitrectomy probe for pediatric vitreoretinal surgeries and to investigate the surgeon's comfort and reliability of using the shorter probe.
NCT06429969
The goal of this observational study was to learn about metabolomics profiles in vitreoretinal diseases by nuclear magnetic resonance (NMR)using vitreous fluid. The main question it aimed to answer was abnormal biomarkers for common retinal diseases such as idiopathic macular hole(IMH), diabetic retinopathy(DR) and retinal detachment(RD). Participants would not be subjected to any intervention and the investigators would only collect preoperative information and remaining vitreous samples. The investigators divided the participants into groups with appropriate disease names based on the disease diagnosis, such as IMH group, DR group, and RD group. The MH group was used as a control group, investigators compared other groups to see the metabolomic abnormalities.
NCT05664555
This study aims to compare the efficacy and safety of fluorescein angiography using 1mL versus 3mL of 10% fluorescein dye.