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NCT07161544
The purpose of the 039-101 study is to evaluate the safety and tolerability of a single subretinal injection of AAVB-039 in participants with Stargardt disease secondary to a biallelic mutation of the ABCA4 gene. The study will also assess initial efficacy following AAVB-039 administration.
NCT07439887
A Phase 1/2, open-label, non-randomized, dose-escalation study, where a minimum of 9 and a maximum of 18 eligible patients with Stargardt Disease will be enrolled sequentially in up to 3 dose cohorts of RTx-021. Enrolled patients will receive a single, unilateral intravitreal injection of RTx-021 in the study eye and be followed for 5 years.
NCT07265895
Inherited Retinal Diseases (IRDs) are a heterogeneous group of genetically based degenerative retinal disorders, representing a major cause of visual impairment and blindness in working-age adults. Despite the approval of the first gene therapy for RPE65-related IRD (voretigene neparvovec) in 2017, most IRDs remain untreatable, though many gene therapies are in development. Effective trial design and therapy development require a deep understanding of disease natural history and genotype-phenotype correlations. Over 270 IRD-associated genes are known (e.g., ABCA4, USH2A, RPGR, PRPH2, BEST1), each linked to distinct phenotypes and clinical progression. This retrospective study analyzes clinical, functional, and imaging data (Optical Coherence Tomography, Fundus Autofluorescence, Microperimetry) from a large, genetically characterized IRD cohort at the IRCCS Ospedale San Raffaele up to December 31, 2025. The aims are to describe natural history, define genotype-phenotype relationships, and identify structural and functional outcome measures useful for future clinical trial endpoints, supporting personalized prognosis and trial design.
NCT07266584
The objective of this study is to evaluate the efficacy and safety of the PRIMA Products in participants with inherited retinal degeneration affecting the macula (including but not limited to Stargardt disease, and Retinitis Pigmentosa). Eligible participants will be implanted with the PRIMA Stim implant. The participants will be assessed with various visual function and functional vision tests at defined timepoints throughout the clinical investigation with the PRIMA Products. The purpose of this study is to gather enough clinical data to support the clinical evaluation required for the continuous development to improve the PRIMA Products.
NCT04545736
Background: ABCA4 retinopathy is a genetic disease in which the ABCA4 protein is absent or faulty. It can cause waste material to collect in the eye and may cause cells to die. The cell death can lead to vision loss. Researchers want to see if an oral drug called metformin can help. Objective: To see if metformin is safe and possibly helps to slow the rate of ABCA4 retinopathy. Eligibility: People age 12 and older who have ABCA4 retinopathy and have problems with their vision. Design: Participants will be screened under a separate protocol. Participants will have a medical and family history. They will complete a questionnaire about their vision and daily activities. They will have a physical exam. They may have blood drawn through a needle in the arm. Participants will have an eye exam. Their pupils may be dilated with eye drops. Their retina may be photographed. Participants will have a visual field test. They will sit in front of a large dome and press a button when they see a light within the dome. Participants will have an electroretinogram. It examines the function of the retina. They will sit in the dark for 30 minutes. Then their eyes will be numbed with eye drops. They will wear contact lenses that can sense signals from the retinas. They will watch flashing lights. Participants will have optical coherence tomography. This non-invasive procedure makes pictures of the retina. Participants will have fundus autofluorescence. A bright blue light will be shone into their eye. Participants will take metformin by mouth for 24 months. Participants will have study visits every 6 months. Participation will last for at least 36 months....
NCT06942572
This Phase 1/2 study will evaluate the safety, tolerability, and preliminary efficacy of subretinal SB-007 administration to determine dose selection in subjects with Stargardt's Type 1 (STGD1). This is a multicenter study which will enroll approximately 57 subjects, followed up over a 96 week period post treatment after a single administration of SB-007.
NCT04239625
The purpose of this open-label, multicenter study is to determine the long-term safety, pharmacokinetics and effects of ALK-001 (C20-D3-retinyl acetate) on the progression of Stargardt disease. This study is an extension of NCT02402660 and enrolls participants who are at least 8 years old. Enrollment is by invitation only. Funding Source - FDA OOPD
NCT03772665
The purpose of this study is to determine if emixustat hydrochloride reduces the rate of progression of macular atrophy compared to placebo in subjects with Stargardt disease. Funding Source -- FDA OOPD
NCT01676766
The purpose of this study is to utilize flavoprotein fluorescence and fundus autofluorescence to detect progression of Stargardt macular dystrophy in a pediatric population over the course of a year with the hope of aiding future therapeutic risk-benefit decisions and assessment of outcomes. Stargardt macular dystrophy is the most common of the juvenile-onset macular dystrophies. Despite determination of ABCA4 as the causative gene, clinicians have been challenged by variability in clinical phenotypes. Given the recent initiation of clinical trials to assess novel treatments (e.g. gene therapy), there is a need to identify patients with the worst prognosis. The investigators have observed that pediatric patients lose central visual function faster than their adult counterparts. Thus, they present an ideal cohort with which to determine the utility of novel modalities to detect early change. These include flavoprotein fluorescence, a new imaging technique for detecting mitochondrial dysfunction developed at the University of Michigan. Fundus autofluorescence (FAF) is another commonly utilized technique of evaluating hereditary eye diseases. The investigators have developed a novel means of quantifying FAF signatures that will allow documentation of severity as well as detection of progression.