Clinical Research Directory

Study of ALK-001 on the Progression of Stargardt Disease

This study evaluates the efficacy and safety of investigational study drug ALK-001 in participants 8 to 45 years of age, inclusive, with symptoms and signs of autosomal recessive Stargardt disease (STGD)

A Phase 2/3 Trial to Assess the Efficacy and Safety of OCU410ST for Stargardt Disease

Phase 2/3 Pivotal Confirmatory Clinical Trial is a randomized, outcome assessor-masked, multicenter study, that will enroll fifty-one (51) subjects. Subjects will be enrolled in a 2:1 ratio to either the treatment group (n=34 subjects) or to an untreated control group (n=17 subjects). Phase 1 is complete and closed for enrollment. It was a multicenter, open-label, dose ranging/dose escalation study that enrolled 9 subjects. OCU410ST Phase 1- Retinal Structure and Visual Function Data Results * Safety: Favorable safety and tolerability profile No SAE deemed related to OCU410ST including intraocular inflammation, exudation, endophthalmitis, anterior ischemic optic neuropathy (AIONs) or vasculitis. * Primary Endpoint: Structural Improvement Atrophic lesions grew slower by 48% at 12M in evaluable treated eyes when compared to untreated eyes * Secondary Endpoint: Visual Function (BCVA) 100% evaluable treated eyes demonstrated stabilization or improvement when compared to untreated eyes in visual function OCU410ST Phase 1- Structural and Functional Outcomes at 12M Data Results * The GARDian3 clinical trial for ABCA4- related retinopathies including Stargardt disease builds upon encouraging results and positive data from the Phase 1 GARDian trial, which demonstrated 48% slower lesion growth at 12-month follow-up in evaluable treated eyes compared to untreated eyes * Additionally, evaluable treated eyes showed a statistically significant (p=0.031) and clinically meaningful improvement of nearly 2-line/9-letter gain in best corrected visual acuity (BCVA) at 12-month follow-up when compared to untreated eyes.

Restoration of Central Vision With PRIMA in Patients With Photoreceptor Degeneration

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.

Development and Evaluation of Functional Visual Field and Navigation Endpoints in Moderate to Profound Inherited Retinal Disease (DEFINE-IRD)

The Vision Research and Assessment Institute (VRAI) was established with the purpose of serving as a testing facility for efficacy endpoints for patients with Low Vision. The mission of the VRAI is to enable the highest quality, standardized efficacy testing of patients with visual impairment. The VRAI facilitates the development and refinement of existing endpoints specifically for testing patients with Low Vision.

Prescreening Study to Identify Potential Stargardt Participants for ACDN-01 Clinical Trials (STARPATH)

This is an observational prescreening study. Individuals who are eligible for prescreening will undergo testing procedures that may be used to determine eligibility in ACDN-01 clinical trials.

A Study of AAVB-039 in Participants With Stargardt Disease (STGD1)

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.

A Study to Learn How Stargardt-type Eye Conditions Progress in Children and Adults

Macular dystrophies are a group of inherited eye conditions that affect the macula. The macula is in the center of the retina, the light sensitive part at the back of the eye. In people with macular dystrophies, some of the cells in the macula gradually stop working and may die over time. This leads to vision loss in the center of the eye. Side vision (peripheral vision) is mostly unaffected. Stargardt disease (STGD) is a type of macular dystrophy which is caused by 1 faulty gene (ABCA4). Vision loss most typically happens in childhood, but many people do not develop it until they are adults. As well as STGD, there are other macular dystrophies that look very similar to STGD but that are caused by many other different genes. Together, STGD and STGD-like conditions can be called STGD-type macular dystrophies. This is because they look the same clinically and have similar symptoms. Since different genes can cause these conditions, genetic testing is the only way to be sure which specific condition a person has. In this study, researchers want to learn if the disease progresses in a similar way in people with STGD and STGD-like macular dystrophies. People taking part in the study will continue to manage their condition, as agreed with their own doctor. People will visit their clinic every 6 months to have various standard eye tests and imaging. The information collected will include questions about people's wellbeing, general health, medication and supplements taken, and daily activities. Children over 6 years old and adults with STGD-type macular dystrophies may take part in this study. They will be in the study for up to 24 months (2 years). The study sponsor (Astellas) will not decide how people's condition is managed. However, the sponsor will provide instructions on when people visit their clinic and what is recorded during the study. If available, medical records, clinical and imaging data from previous visits going back 24 months will also be reviewed.

Phase 1/2 Open-Label Dose-Escalation Study to Evaluate Safety of a Single Intravitreal Injection of RTx-021 in Patients With Stargardt Disease

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.

A Study of DC6001 Tablet in Healthy Chinese Adult Subjects

This study adopts a randomized, double-blind, parallel placebo-controlled dose-escalation design, consisting of two parts: Part 1 includes a single ascending dose (SAD) study plus a food effect (FE) study, and Part 2 is a multiple ascending dose (MAD) study.

Wide Field OCTA in Ocular Diseases

The main retinal diseases, whether or not associated with specific mutations genetic, cause progressive degeneration of vascular retinal structures and not vascular, resulting in decreased visual function. Often, such diseases affect the noblest part of the retina, called macula. Many retinal diseases can be complicated by choroidal neovascularization which causes frequent bleeding and fluid leakage that accumulates in the subretinal and intraretinal spaces. Although the investigators know many details of each disease affecting the retina, very often the correct diagnostic framework can be complicated, given the presence of morphological elements common to the different pathologies. Similarly, predicting the effect of treatment and the patient's outcome is a constant challenge for the ophthalmologists. Most of the current research has been focused on the assessment of vascular alterations localized in the macula. However, growing evidence highlight the importance of peripheral vascular changes on the outcome of retinal diseases. These changes can be detected only be wide field OCT devices. On the other hand, ocular inflammation and hyperemia represent major assessments in anterior segment disorders, such as dry eye disease. The current grading systems of ocular inflammation, redness and hyperemia are characterized by several limitations, thus making these evaluations still mainly confined to the subjective assessment performed by the ophthalmologist. However, the new generation OCT devices may include also an anterior segment module which can reconstruct anterior segment vessels, non-invasively, using the same technology described for retinal diseases. The main goal of the study is to evaluate the diagnostic contribution of a new generation wide field OCTA device in ocular diseases, which has recently received CE marking. In particular, the investigators will evaluate this new generation device both in retinal and anterior segments diseases, testing for common points and differences with the standard of care non-invasive diagnostic devices. Secondary outcomes include the assessment of the correlation between the patient's visual function (visual acuity) and morphological changes (standard of care imaging assessment) highlighted by the wide field OCT device, with particular attention to microstructural differences between major ocular diseases and the possible development of non-invasive biomarkers, useful for the diagnosis and follow-up of such pathologies.

Inherited Retinal Diseases: Natural History and Genotype-Phenotype Correlations

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.

Study to Evaluate ACDN-01 in ABCA4-related Stargardt Retinopathy (STELLAR)

This study is an open-label, single ascending dose clinical trial in participants who have ABCA4-related retinopathies. This is the first-in-human clinical trial in which ACDN-01 will be evaluated for safety, tolerability, and preliminary efficacy following a single subretinal injection of ACDN-01.

Oral Metformin for Treatment of ABCA4 Retinopathy

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....

The Effects of Disulfiram (Antabuse®) on Visual Acuity in Patients With Retinal Degeneration

Oral disulfiram (Antabuse®) has been shown to improve image-forming vision in animal models with retinal degeneration due to its ability to decrease Retinoic Acid synthesis and consequently reduce hyperactivity in the inner retina. The investigator will aim to evaluate the impact of oral disulfiram on the vision of patients with retinal degeneration who are being treated with the drug in the management of their concurrent alcohol use disorder.

An Observational Study in Subjects to Follow the Progression of Stargardt Disease Type 1 (STGD1) Caused by Bi-Allelic Autosomal Recessive Mutations in the ABCA4 Gene

This is an Observational Study to Follow the Progression of Stargardt Disease Type 1 (STGD1) Caused by Bi-Allelic Autosomal Recessive Mutations in the ABCA4 Gene This is a multicenter study which will enroll approximately 75 subjects

Feasibility and Tolerability Study of Smart Contact Lens With Healthy Subjects and Patients With Stargardt's Disease

Oculometry is becoming increasingly popular in fields such as enhanced reality and healthcare, but remains limited by complex devices that are poorly adapted to the needs of users, particularly the visually impaired. This research proposes to explore a smart contact lens (SCL)-based system to overcome these limitations, particularly for people with central visual deficits such as Stargardt's disease.

An Observational Study in Children and Adults With Stargardt Disease

This multicenter, prospective, longitudinal, observational study in approximately 80 subjects with Stargardt disease secondary to biallelic mutations in the ABCA4 gene (STGD1) aims to evaluate prognostic factors of disease progression, and to further characterize the patient population for future clinical studies.

A Phase 1/2, First-in-Human Dose Escalation/Expansion Study to Evaluate the Safety, Tolerability and Preliminary Efficacy of a Subretinal Injection of SB-007 in Subjects With Stargardt Disease (STGD1)

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.

Phase 2 Tolerability and Effects of ALK-001 on Stargardt Disease

The purpose of this study is to determine the long term safety and tolerability of ALK-001 (C20-D3-retinyl acetate), and to explore the effects of ALK-001 on the progression of Stargardt disease in patients between the ages of 8 and 70 years old. Funding Source - FDA OOPD

Open-Label Extension: Tolerability and Effects of ALK-001 on Stargardt Disease (TEASE)

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

Function and Imaging Assessments for G1961E-associated Stargardt Disease

Some phenotypes of Stargardt disease are rather distinct. This includes the 'bull's eye maculopathy' phenotype associated with the frequent ABCA4 G1961E variant. In anticipation of a treatment trial, this natural history study aims to compare functional and structural outcome measures systematically.

Inherited Retinal Degenerative Disease Registry

The My Retina Tracker® Registry is sponsored by the Foundation Fighting Blindness and is for people affected by one of the rare inherited retinal degenerative diseases studied by the Foundation. It is a patient-initiated registry accessible via a secure on-line portal at www.MyRetinaTracker.org. Affected individuals who register are guided to create a profile that captures their perspective on their retinal disease and its progress; family history; genetic testing results; preventive measures; general health and interest in participation in research studies. The participants may also choose to ask their clinician to add clinical measurements and results at each clinical visit. Participants are urged to update the information regularly to create longitudinal records of their disease, from their own perspective, and their clinical progress. The overall goals of the Registry are: to better understand the diversity within the inherited retinal degenerative diseases; to understand the prevalence of the different diseases and gene variants; to assist in the establishment of genotype-phenotype relationships; to help understand the natural history of the diseases; to help accelerate research and development of clinical trials for treatments; and to provide a tool to investigators that can assist with recruitment for research studies and clinical trials.

Non-interventional Long Term Follow-up Study of Participants Previously Enrolled in the STARLIGHT Study

The current study is a non-interventional long-term safety follow-up of the subjects who completed STARLIGHT, in accordance with FDA guidance on recipients of human gene therapy products.

A Prospective Observational Study to Assess the Reliability and Validity of the MLSDT

The goal of this observational study is to assess the reliability and validity of the 9-object MLSDT for evaluation of participants with moderate to severe vision impairment when tested without a wearable low-vision magnifying aid (eGlasses) and then with eGlasses. These results will be compared to ETDRS testing results for the same participants without eGlasses and then with eGlasses. Two cohorts will consist of participants who have vision loss due to STGD or geographic atrophy (GA) due to age-related macular degenerations (AMD). Normally sighted participants will provide a control group.