Clinical trials: Visual Impairments
Albinism, Vision Loss
Nitisinone for Type 1B Oculocutaneous Albinism
Background: Oculocutaneous albinism, type 1B (OCA1B) is a genetic disease caused by problems in the gene that makes tyrosine. Tyrosine is an amino acid needed to produce pigment in the skin, hair, and eyes.
- Trial name
- NCT01838655
- Testing
- Nitisinone
- Where
- United States
- Volunteers
- 5 people
- Sponsor
- National Eye Institute (NEI)
Macular Edema, Macular Degeneration
Efficacy and Safety of Lucentis® Use in Patients With Diabetic Macular Edema Evaluating a Spaced Out Follow-up After Intensive Treatment Phase
The study was designed to assess the efficacy and safety of Lucentis® (ranibizumab 0.5 mg) in diabetic patients presenting with reduced visual acuity due to diabetic macular edema and evaluating spacing out of follow-up after…
- Conditions
- Macular Edema, Macular Degeneration, Diabetes
- Trial name
- CONSTELLATION (NCT02032173)
- Testing
- Ranibizumab 0.5mg
- Where
- 10 sites in France
- Volunteers
- 31 people
- Sponsor
- Novartis Pharmaceuticals
Visual Impairment, Amblyopia Suspect
DigiVis: Self-testing Vision App for Telephone Consultations
This trial aims to assess the accuracy and test-retest variability of a new digital app which enables community visual acuity testing without requirement of an trained examiner.
- Trial name
- NCT04482387
- Testing
- DigiVis visual acuity app
- Where
- United Kingdom
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Cambridge University Hospitals NHS Foundation Trust
Macular Degeneration, Wet Macular Degeneration
Aflibercept After Ranibizumab in Exudative Age-related Macular Degeneration
The purpose of the current study is to evaluate the ability of Eylea to induce a regression of PED height on patients previously extensively treated by Lucentis.
- Conditions
- Macular Degeneration, Wet Macular Degeneration, Retinal Degeneration, Retinal Diseases
- Trial name
- ARI2 (NCT02157077)
- Testing
- Aflibercept
- Where
- 9 sites in France
- Volunteers
- 84 people
- Sponsor
- Centre Hospitalier Intercommunal Creteil
Diabetic Macular Edema, Visual Impairment
A 12-month, Randomized, Efficacy and Safety Study of 0.5 mg Ranibizumab vs Laser in Chinese Diabetic Macular Edema (DME) Patients
Study of efficacy and safety of 0.5 mg ranibizumab in Chinese patients with diabetic macular edema (DME)
- Trial name
- REFINE (NCT02259088)
- Testing
- Ranibizumab (RFB002), Laser
- Where
- 28 sites in China
- Volunteers
- 384 people
- Sponsor
- Novartis Pharmaceuticals
Neovascular Age-Related Macular Degeneration
Study of Brolucizumab in Adult Patients With Suboptimal Anatomically Controlled Neovascular Age-related Macular Degeneration
Neovascular age-related macular degeneration is characterized by the presence of choroidal neovascularization (CNV), which consists of abnormal blood vessels originating from the choroid that can lead to hemorrhage, fluid…
- Trial name
- SWIFT (NCT04264819)
- Testing
- RTH258/Brolucizumab
- Where
- 51 sites in France
- Volunteers
- 295 people
- Sponsor
- Novartis Pharmaceuticals
Problem With Vision Blindness, Intraocular Pressure
Intraocular Pressure During Abdominal Aortic Aneurysm (AAA) Repair
The objective of this study will be to answer a clinical question that has not already been investigated; that is, what are the effects of aortic infra-renal clamping and unclamping on intraocular pressure during Abdominal Aortic…
- Conditions
- Problem With Vision Blindness, Intraocular Pressure, Ischemic Optic Neuropathy
- Trial name
- NCT00450294
- Where
- Canada
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Manitoba
Diabetic Retinopathy
A Multicenter, Randomized Study in Participants With Diabetic Retinopathy Without Center-involved Diabetic Macular Edema To Evaluate the Efficacy, Safety, and Pharmacokinetics of Ranibizumab Delivered Via the Port Delivery System Relative to the Comparator Arm
Study GR41675 is a Multicenter, Randomized Study in Participants with Diabetic Retinopathy (DR) Without Center-Involved Diabetic Macular Edema (CI-DME) to Evaluate the Efficacy, Safety of the Port Delivery System with Ranibizumab…
- Trial name
- PAVILION (NCT04503551)
- Testing
- PDS Implant Pre-Filled with 100 mg/mL Ranibizumab, Intravitreal Ranibizumab 0.5 mg Injection
- Where
- 65 sites in United States, Puerto Rico
- Volunteers
- 174 people
- Sponsor
- Hoffmann-La Roche
Mild Cognitive Impairment, Metabolic Syndrome
Dietary Ketosis: Fatty Acids Activate AMPK Energy Circuits Modulating Global Methylation
The study explores whether selective memory complaints (SMC), mild cognitive impairment (MCI) and the comorbidity of Metabolic Syndrome symptomatic of peripheral and cerebral hypo-metabolism with corresponding epigenetic shifts…
- Trial name
- NCT03319173
- Testing
- Dietary intervention
- Where
- United States
- Volunteers
- 98 people, healthy volunteers welcome
- Sponsor
- Bristlecone Health, Inc.
Blindness
Virtual Reality Mobility Training System for Veterans With Vision Loss
This is a two-year proof-of-concept study to evaluate a new Virtual Reality (VR) "holographic" sound system for use as an audiological Orientation and Mobility (O\&M) training tool
- Trial name
- NCT00333879
- Testing
- Virtual Sound System
- Where
- United States
- Volunteers
- 4 people, healthy volunteers welcome
- Sponsor
- US Department of Veterans Affairs
Retinitis Pigmentosa, Usher Syndrome Type 2
Study to Evaluate the Efficacy Safety and Tolerability of QR-421a in Subjects With RP Due to Mutations in Exon 13 of the USH2A Gene With Early to Moderate Vision Loss (Celeste)
The purpose of this study is to evaluate the efficacy safety and tolerability of QR-421a administered via intravitreal injection (IVT) in subjects with Retinitis Pigmentosa (RP) due to mutations in exon 13 of the USH2A gene with…
- Conditions
- Retinitis Pigmentosa, Usher Syndrome Type 2, Deaf Blind, Retinal Disease
- Trial name
- NCT05176717
- Testing
- QR-421a
- Where
- 3 sites in United States, United Kingdom
- Volunteers
- 5 people
- Sponsor
- Laboratoires Thea
Decrease in Night Vision, Disturbance; Vision, Loss
Single Dose Study of Phentolamine Mesylate Eye Drops in Patients With Severe Night Vision Disturbances
The objectives of this study are: To assess the effect of ophthalmic phentolamine mesylate in mesopic conditions on the four endpoints: 1. Contrast sensitivity 2. Low contrast visual acuity 3. Wavefront aberrometry 4.
- Trial name
- SNV (NCT04004507)
- Testing
- Phentolamine Mesylate Ophthalmic Solution 1%
- Where
- United States
- Volunteers
- 24 people
- Sponsor
- Opus Genetics, Inc
Visual Acuity, Geographic Atrophy
A Study to Evaluate the Safety and Clinical Response of Subretinal Administration of CNTO 2476 in Participants With Geographic Atrophy
The purpose of this study is to evaluate the safety and performance profile of the suprachoroidal surgical approach and the Delivery System.
- Conditions
- Visual Acuity, Geographic Atrophy, Macular Degeneration
- Trial name
- PRELUDE (NCT02659098)
- Testing
- CNTO 2476 3.0 x 10^5 cells, Subretinal Delivery System
- Where
- 8 sites in United States
- Volunteers
- 21 people
- Sponsor
- Janssen Research & Development, LLC
Diabetic Macular Edema
Multiple Dose Safety and Efficacy of LKA651 in Patients With Diabetic Macular Edema
The primary objectives of this study were to evaluate the safety and efficacy of LKA651 in patients with macular edema from diabetic macular edema (DME),
- Trial name
- NCT03927690
- Testing
- LKA651, Lucentis
- Where
- 22 sites in United States, Germany and 3 more
- Volunteers
- 91 people
- Sponsor
- Novartis Pharmaceuticals
Blindness
Wayfinding Information Access System for People With Vision Loss
The purpose of the project is to find out what kinds of information are most useful to visually impaired people when they are moving around indoors and what kinds of controls will make it easy for visually impaired people to…
- Trial name
- NCT00829036
- Testing
- Wayfinding Prototype
- Where
- United States
- Volunteers
- 24 people
- Sponsor
- US Department of Veterans Affairs
Visual Rehabilitation, Visual Impairment, Autism Spectrum Disorder, Developmental Disabilities, Intellectual Disability, Behavioral Symptoms
Evaluation of a Program to Enhance Ophthalmic Compliance in Children and Adolescents With Special Needs
The goal of this clinical trial is to learn about the effects of the structured program incorporating contextual, behavioral, and cognitive strategies to improve compliance of children and adolescents with special needs during…
- Trial name
- NCT06717282
- Testing
- visual rehabilitation for ophthalmic compliance, Using contextual, behavioral, and cognitive-based stragegies to develop training programs
- Where
- Taiwan
- Volunteers
- 20 people
- Sponsor
- National Taiwan University Hospital
Visual Impairment, Macular Edema
Efficacy and Safety of Ranibizumab Intravitreal Injections Versus Dexamethasone Intravitreal Implant in Patients With Central Retinal Vein Occlusion (CRVO)
This clinical trial is designed to compare ranibizumab in comparison with Dexamethasone implant® after 6 months of treatment. In the study arm Lucentis will be given monthly in a pro re nata scheme whereas the comparator…
- Conditions
- Visual Impairment, Macular Edema, Central Retinal Vein Occlusion
- Trial name
- COMRADE-C (NCT01396083)
- Testing
- Ranibizumab
- Where
- 64 sites in Germany, Hungary and 2 more
- Volunteers
- 243 people
- Sponsor
- Novartis Pharmaceuticals
Retinitis Pigmentosa
Evoked Retinal Response
Retinitis pigmentosa (RP) is the name given to a group of inherited eye diseases that affect the retina (the light-sensitive part of the eye).
- Trial name
- NCT01415453
- Testing
- Ultrasound Stimulus
- Where
- United States
- Volunteers
- 1 people
- Sponsor
- Columbia University
Uveomeningoencephalitic Syndrome, Inflammation
Multimodal Analysis and Electroretinogram in VKH From Acute Onset - Part I
Patients with acute onset Vogt-Koyanagi-Harada disease (VKHD) were prospectively included in this study. They were systematically followed with clinical, posterior segment imaging exams and full-field electroretinogram during a…
- Conditions
- Uveomeningoencephalitic Syndrome, Inflammation, Choroid Disease, Visual Impairment
- Trial name
- NCT03811366
- Testing
- Corticosteroid monotherapy
- Where
- Brazil
- Volunteers
- 12 people
- Sponsor
- University of Sao Paulo
Anterior Ischemic Optic Neuropathy
PDE5 Inhibitor Use and Non-arteritic Anterior Ischemic Optic Neuropathy (NAION)
The primary objective of this study is to determine whether the use of PDE5 inhibitors (vardenafil, sildenafil, or tadalafil) increases the risk for the development of NAION.
- Trial name
- NCT00867815
- Testing
- Diagnostic procedures
- Where
- 13 sites in United States, Australia and 1 more
- Volunteers
- 10 people
- Sponsor
- Bayer