View clinical trials related to Retinitis Pigmentosa.
Filter by:This research study is being done to learn what effect 12 months of treatment with oral hydroxychloroquine (HCQ) will have on the retina in people with retinitis pigmentosa (RP). The hypothesis is that treatment with HCQ is safe and tolerable in patients with autosomal dominant retinitis pigmentosa (adRP) caused by P23H-RHO, and may arrest progression of retinal degeneration by altering the autophagy pathway in photoreceptors. Participants that meet eligibility and agree to the study will be asked to take the study medication (HCQ) for 12 months and have evaluations for up to approximately 18 months from the baseline visit. There will be a total of 6 visits (1 is a phone visit) and will include general examinations, blood work, electrocardiograms, along with special testing of the retina.
Patients with retina dystrophies (retinitis pigmentosa, cone>rods dystrophies, Usher and syndromic) will be correlated with genotype and validate inheritance mode by segregation analysis.
This project intends to transplant a clinical level human embryonic stem cells derived retinal pigment epithelium into subretinal space to treat eetinitis pigmentosa(RP) diseases. Through the statistical analysis EDTRS, BCVA, OCT, ERG, Fluorescein angiography, Ophthalmic AB ultrasound changes between before and after the treatment to assess the efficacy and safety 0f RPE transplants to treat RP disease.
Background: Retinitis pigmentosa (RP) is a group of blinding eye diseases. It is caused mostly by mutations in photoreceptor-expressed genes. RP affects about 2 million people globally. There is no cure, butut treatment and diagnosis can be guided by certain tests. Researchers want to see how well these tests capture stages of RP. Objectives: To find out how well certain tests track changes in retinitis pigmentosa. Eligibility: People ages 12 and older with RP Design: Participants will be screened in another protocol. Participants will have 2 visits about 6 weeks apart. Both will include all the tests below. Each visit will last 5 6 hours, or a visit can be split into 2 days. Participants will give their medical and eye history. Participants will have an eye exam. Their pupils will be dilated with eye drops. Participants will give blood samples. Pictures of participants retinas will be taken. Their retinas will be measured. Participants will take several eye tests. They will: Sit in a dark room and press a button when they see lights. View a bright background then press a button when they see lights. Look into a bowl and press a button when they see lights. Sit in the dark with their eyes patched. Then they will take eye-numbing drops and wear contacts as lights flash. A small electrode taped to their forehead will record signals from their retinas. Minors will give written consent to stay in the study when they turn 18. After the study ends, they may also be asked to give consent for researchers to continue to use their study information. Sponsoring Institute: National Eye Institute
The study will evaluate new methods of retinal stimulation and training with the goal of improving the visual ability of retinal prosthesis participants.
Early Phase I Study of the Safety and Preliminary Efficacy of Human primary Retinal Pigment Epithelial (HuRPE) Cells Subretinal Transplantation in Retinitis Pigmentosa (RP) and Leber Congenital Amaurosis (LCA) Patients
To evaluate whether the use of the Argus II retinal prosthesis improves the confidence and self-esteem of patients with advanced retinopathy pigmentosa
The study is a Phase I/II, monocentric, open-label, dose-ranging safety and efficacy gene therapy intervention by subretinal administration of AAV2/5-hPDE6B. At least twelve patients 18 years of age or older, within four consecutive cohorts of patients, will be recruited. Then at least four patients 13 years of age or older, within a fifth cohort, will be recruited.
The objective of this study is to evaluate the safety and tolerability of escalating doses of a gene therapy called GS030-DP (injected study treatment) administered via a single intravitreal injection and repeated light stimulation using a medical device called GS030-MD (stimulating glasses) in subjects with documented diagnosis of non-syndromic Retinitis Pigmentosa
Medical Marijuana is used widely, and its effects on the visual system and the function of the retina have not been investigated thoroughly. Some evidence suggests that cannabinoids may be beneficial in certain degenerative diseases of the retina. The purpose of the study is 1. To determine whether cannabis derivatives affect the visual functions in healthy adults 2. To examine the effect of cannabis derivatives on the retina of retinitis pigmentosa patients