Clinical trials: Pigment Deposition
Retinal Dystrophies, Age-related Macular Degeneration
Retinal Imaging by Adaptive Optics in Healthy Eyes and During Retinal and General Diseases
Using an adaptive optics imaging device, retinal structures are observed in healthy and diseased subjects.
- Conditions
- Retinal Dystrophies, Age-related Macular Degeneration, Arterial Hypertension, Diabetes
- Trial name
- iPhot (NCT01546181)
- Where
- France
- Volunteers
- 256 people, healthy volunteers welcome
- Sponsor
- Institut National de la Santé Et de la Recherche Médicale, France
LCA (Leber Congenital Amaurosis), RP (Retinitis Pigmentosa)
Safety/Proof of Concept Study of Oral QLT091001 in Subjects With Leber Congenital Amaurosis (LCA) or Retinitis Pigmentosa (RP) Due to Retinal Pigment Epithelial 65 Protein (RPE65) or Lecithin:Retinol Acyltransferase (LRAT) Mutations
The purpose of this study is: to evaluate the safety of oral QLT091001 to evaluate whether 7-day treatment with oral QLT091001 can improve visual function in subjects with LCA or RP due to RPE65 or LRAT mutations to evaluate…
- Trial name
- NCT01014052
- Testing
- QLT091001
- Where
- 7 sites in United States, Canada and 3 more
- Volunteers
- 32 people
- Sponsor
- QLT Inc.
Pigment Dispersion, Mosaicism
Characterize Metzker Pigmentary Disorders
Metzker pigmentary disorders are frequent cause of consultation in pediatric dermatology. The investigators can describe 4 patterns.
- Trial name
- NCT04966533
- Where
- France
- Volunteers
- 74 people
- Sponsor
- University Hospital, Montpellier
Macular Pigmentation, Skin Pigment
Macular Pigment Measurements in Eye & Other Tissues
The purpose of this study is to understand the role of nutrition and its effects on the eye and other tissues. The investigators propose to study this by validating and correlating various non-invasive measurement methods of…
- Trial name
- NCT03022773
- Testing
- Carotenoid measurements
- Where
- United States
- Volunteers
- 10,000 people, healthy volunteers welcome
- Sponsor
- University of Utah
Diabetic Retinopathy, DR
Epivascular Glia Regression and Macular Pigment Restoration After Faricimab in Diabetic Retinopathy
The aim of the study is to evaluate in diabetic patients affected by diabetic retinopathy epivascular glia regression and macular pigment restoration after faricimab injection in diabetic retinopathy in a 1 year follow up
- Trial name
- GLIA-MAC (NCT07526857)
- Testing
- Faricimab Injection [Vabysmo], Aflibercept (2.0 mg)
- Where
- Italy
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Federico II University
Leber Congenital Amaurosis (LCA), Retinitis Pigmentosa (RP)
Natural History Study in Inherited Retinal Disease Subjects Caused by Mutations in RPE65 or LRAT
To evaluate the natural history of visual function in subjects with IRD phenotypically diagnosed as Leber congenital amaurosis (LCA) or retinitis pigmentosa (RP) caused by RPE65 or LRAT gene mutations.
- Trial name
- NCT02575430
- Testing
- No treatment: retrospective chart review
- Where
- 9 sites in United States, Canada and 5 more
- Volunteers
- 59 people
- Sponsor
- QLT Inc.
Diabetes, Diabetes Mellitus
Thrombospondin-1 and Pigmented Epithelium Derived Factor Levels in Patients With Diabetes Mellitus.
You are being asked to be in a research study to determine blood levels and vitreous levels of compounds called thrombospondin 1 (TSP1) and pigment epithelium derived factor (PEDF). These compounds exists naturally in your body.
- Trial name
- PEDF (NCT01809093)
- Testing
- Blood draw
- Where
- United States
- Volunteers
- 90 people
- Sponsor
- MidAtlantic Retina
Leber Congenital Amaurosis
Safety Study in Subjects With Leber Congenital Amaurosis
The purpose of this study is to determine whether gene transfer will be safe and effective in the treatment of Leber Congenital Amaurosis (LCA).
- Trial name
- NCT00516477
- Testing
- voretigene neparvovec-rzyl
- Where
- United States
- Volunteers
- 12 people
- Sponsor
- Spark Therapeutics, Inc.
Glaucoma, Glaucoma, Open-Angle
Pigment Dispersion Syndrome With and Without Glaucoma
To compare patients having PDS without and with OH or GL by documenting and following the clinical features and course of their disease and evaluating the patient's performance on a variety of diagnostic tests.
- Conditions
- Glaucoma, Glaucoma, Open-Angle, Ocular Hypertension
- Trial name
- NCT00001152
- Where
- United States
- Volunteers
- 175 people
- Sponsor
- National Eye Institute (NEI)
Retinitis Pigmentosa, Usher Syndromes
Prospective Open Clinical and Genetic Study of Patients With Retinitis Pigmentosa
This study is aimed to characterize Russian population of Retinitis Pigmentosa
- Trial name
- RU-RP (NCT03901391)
- Testing
- Whole Exome Sequencing
- Where
- 2 sites in Russia
- Volunteers
- 130 people
- Sponsor
- Sensor Technology for Deafblind
Psoriasis
Levels of Pigment Epithelium-derived Factor in Patients With Psoriasis.
Psoriasis is an immune-mediated chronic inflammatory skin disease associated with increase interaction of inflammatory mediators like adipokines.
- Trial name
- NCT05252741
- Testing
- serum samples and punch skin biopsies
- Where
- Egypt
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- Sohag University
Hypoxemia, Skin Pigment
Skin Pigment/Pulse Oximeter in Congenital Heart Disease (CHD)
Recent retrospective studies have demonstrated differences between pulse oximeter values (SpO2) and measured arterial oxygen saturation (SaO2) in patients identifying as Black or Hispanic.
- Conditions
- Hypoxemia, Skin Pigment, Congenital Heart Disease
- Trial name
- NCT06575270
- Where
- United States
- Volunteers
- 24 people
- Sponsor
- Icahn School of Medicine at Mount Sinai
Healthy
Normal Human Electro-Oculogram
This study will measure the normal range of the human electro-oculogram (EOG) in people of various age groups. EOGs are recordings of electrical signals generated by the retina (the light-sensitive tissue in the back of the eye)…
- Trial name
- NCT00001610
- Where
- United States
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- National Eye Institute (NEI)
Sunburn, Sun Damaged Skin
Natural Sunlight Protection and Simulated Sunlight Protection Offered by Sunscreens and Fabrics
The purpose of this study is to assess how human skin reacts and how sunscreens and sun protection fabrics protect in natural sunlight compared to their labeled claims, indoor testing methods (existing or modified) and…
- Conditions
- Sunburn, Sun Damaged Skin, Overexposure to Sun Rays
- Trial name
- NCT03007589
- Testing
- otc sunscreens, sun protection fabrics, Optical Filters
- Where
- 5 sites in United States, Chile and 1 more
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Sun Protection Foundation
Inherited Retinal Dystrophy Due to RPE65 Mutations, Leber Congenital Amaurosis
Safety and Efficacy Study in Subjects With Leber Congenital Amaurosis
The study is a Phase 3, open-label, randomized controlled trial of gene therapy intervention by subretinal administration of AAV2-hRPE65v2 (voretigene neparvovec-rzyl).
- Trial name
- NCT00999609
- Testing
- AAV2-hRPE65v2,voretigene neparvovec-rzyl
- Where
- 2 sites in United States
- Volunteers
- 31 people
- Sponsor
- Spark Therapeutics, Inc.
Retinal Disorder
Safety and Efficacy of Zuretinol Acetate in Subjects With Inherited Retinal Disease
To evaluate the efficacy of ZA oral solution in subjects with IRD caused by biallelic recessive RPE65 or LRAT gene mutations and phenotypically diagnosed as Leber's Congenital Amaurosis (LCA) or Retinitis Pigmentosa (RP).
- Trial name
- NCT04311112
- Testing
- ZA Low dose, ZA high dose
- Where
- United States
- Sponsor
- Retinagenix Holdings
Melasma
Fractional Photothermolysis for Treating Melasma
In several observational studies, non-ablative fractional photothermolysis (FP) has been reported to bridge the gap between efficacy and tolerability in the treatment of melasma.
- Trial name
- NCT01245881
- Testing
- Non-ablative fractional photothermolysis laser, broad-spectrum sunblock (SPF 50+)
- Where
- Germany
- Volunteers
- 51 people
- Sponsor
- Laserklinik Karlsruhe
Inherited Retinal Dystrophy Primarily Involving Sensory Retina, Inherited Retinal Dystrophy Primarily Involving Retinal Pigment Epithelium
Study on the Effects of Mutations Under Inherited Retinal Disease in Korean
To develop comprehensive genetic maps of inherited retinal diseases in Korean Establishment of comprehensive genetic database in Koreans with inherited retinal diseases including frequently mutated genes, genotype-phenotype…
- Trial name
- NCT03613948
- Where
- South Korea
- Volunteers
- 280 people
- Sponsor
- Gangnam Severance Hospital
Pigment Dispersion Syndrome
Pigment Dispersion Syndrome: Natural History and Possible Protective Effect of a YAG Laser Iridotomy
STUDY AIMS 1. To determine the 10-year conversion rate from pigment dispersion syndrome (PDS) to pigmentary glaucoma (PG) 2. To evaluate the possible protective effect of a Yag-laser iridotomy
- Trial name
- NCT01053416
- Testing
- Yag laser iridotomy
- Where
- Italy
- Volunteers
- 72 people
- Sponsor
- University of Parma
Full Macular Hole
Changes InMPOD After Full-thickness Macular Hole Closure
The notable increase in MPOD following successful surgery suggests its potential role as a valuable adjunctive biomarker associated with a good visual prognosis following this type of macular hole surgical interventions.
- Trial name
- NCT06664515
- Testing
- Ciro Costagliola
- Where
- Italy
- Volunteers
- 15 people
- Sponsor
- Federico II University