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Active clinical trials for "Retinitis Pigmentosa"

Results 81-90 of 222

Rate of Progression of PCDH15-Related Retinal Degeneration in Usher Syndrome 1F

Retinal DegenerationRetinitis Pigmentosa2 more

The overall goal of this project, co-funded by the Foundation Fighting Blindness and the USHER 1F Collaborative is to characterize the natural history of disease progression in patients with PCDH15 mutations in order to accelerate the development of outcome measures for clinical trials.

Active34 enrollment criteria

Rate of Progression in EYS Related Retinal Degeneration

Retinitis PigmentosaEye Diseases

The overall goal of this project funded by the Foundation Fighting Blindness is to characterize the natural history of disease progression in patients with EYS mutations in order to accelerate the development of outcome measures for clinical trials.

Active29 enrollment criteria

Study to Evaluate the Efficacy Safety and Tolerability of QR-421a in Subjects With RP Due to Mutations...

Retinitis PigmentosaUsher Syndrome Type 27 more

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 early to moderate vision loss.

Terminated26 enrollment criteria

Rate of Progression in USH2A-related Retinal Degeneration

Usher SyndromeType 2A1 more

The overall goal of this project funded by the Foundation Fighting Blindness is to characterize the natural history of disease progression in patients with USH2A related retinal degeneration associated with congenital hearing loss (Usher syndrome type 2a) or non-syndromic retinitis pigmentosa (RP39).

Active23 enrollment criteria

An Open-Label Extension Study to Evaluate Safety & Tolerability of QR-421a in Subjects With Retinitis...

Retinitis PigmentosaUsher Syndrome Type 2

PQ-421a-002 (Helia) is an open-label, extension study to evaluate the safety, tolerability and efficacy of QR 421a (ultevursen) administered via intravitreal (IVT) injection in one or both eyes, in subjects ≥ 12 years of age with RP due to mutations in exon 13 of the USH2A gene, for an anticipated period of 24 months, or until provision of continued treatment by other means is available, provided the subject's benefit-risk determination remains positive.

Terminated8 enrollment criteria

Characterizing Rate of Progression in USHer Syndrome (CRUSH) Study

Usher SyndromeType 2A2 more

Mutations in USH2A give rise to two phenotypes: Usher syndrome type 2a (USH2A) and nonsyndromic RP (USH2A associated nsRP). Usher syndrome is the most common form of congenital deafblindness. Patients with Usher syndrome are hearing impaired or profoundly deaf from birth and this can be rehabilitated with hearing aids or a cochlear implant. Furthermore, these patients develop retinitis pigmentosa (RP), a slowly progressive type of retinal degeneration that usually starts in the first or second decade of life. In both USH2A and nsRP patients the disease leads to severe visual impairment and eventually blindness around the 50th-70th year of life. There are no treatment options for the retinal degeneration. We do not know if they also suffer from balance complaints. Currently, genetic therapy for Usher syndrome type 2 and USH2A associated nsRP is in development. But to measure the effect of a (genetic) therapy, it is crucial to know the detailed natural course of the visual and hearing deterioration over time. Several genetic therapy studies for other disorders are currently delayed, because the natural history of the disease has not been studied in detail previously. The main objective is to map the natural course of the visual and hearing deterioration in Usher Syndrome 2 and USH2A associated nsRP for upcoming genetic therapy studies. Secondary objectives are: 1) To determine the necessary type of (combined) examinations, the sample size and length of studies (in years) essential to evaluate future genetic therapy in Usher syndrome. 2) To improve counselling of patients with Usher syndrome type 2 and USH2A associated nsRP with detailed information on the prognosis. 3) To identify additional etiological factors that explain variability in hearing impairment by adding questionnaires and psychophysical audiometric tests; and to assess the vestibular phenotype in Usher syndrome type 2 and USH2A associated nsRP patients. This is a longitudinal, prospective natural history study. The study population consists of healthy human volunteers, 16 - 55 yr old with a confirmed genetic diagnosis of Usher Syndrome type 2 or and USH2A associated nsRP. The main study endpoint is the natural course of the visual and hearing deterioration in Usher Syndrome type 2 and USH2A associated nsRP, over a time span of 4 years. There are no risks associated with participation.

Active27 enrollment criteria

Study of SAR421869 in Participants With Retinitis Pigmentosa Associated With Usher Syndrome Type...

Usher SyndromeRetinitis Pigmentosa

To evaluate the safety and tolerability of ascending doses of subretinal injections of SAR421869 in participants with Usher syndrome type 1B. To evaluate for possible biological activity of SAR421869.

Terminated29 enrollment criteria

Long Term Follow-Up Gene Therapy Study for XLRP RPGR

X-Linked Retinitis Pigmentosa

The is a Long-Term Follow-up study assessing safety of patients for up to 60 months following AAV2 vector in participants with XLRP caused by mutations in RPGR.

Active2 enrollment criteria

A Study to Evaluate the Safety of CNTO 2476 in Patients With Advanced Retinitis Pigmentosa

Retinitis Pigmentosa

The main purpose of this study is to evaluate the preliminary safety and immunogenicity (ability of an antigen to provoke immune response in the human body) of CNTO 2476, administered subretinally, in participants with advanced retinitis pigmentosa (RP; disease of the eye that leads to loss of vision and blindness) with either light perception only (LP) or hand motion (HM).

Terminated8 enrollment criteria

Phase III Efficacy and Safety Clinical Study of UF-021 for Treatment of Retinitis Pigmentosa

Retinitis Pigmentosa

This study is a multicenter trial performed in Japan, consisting of a comparative study period and a continuous administration period. Effect of 0.15% UF-021 eye drops on improvement in central retinal sensitivity with HFA will be verified in 52 weeks comparative study period by a placebo-controlled, double-masked study in patients with retinitis pigmentosa. The safety of same eye drops will also be examined in 52 weeks continuous administration period, in all the patients who completed the comparative study period.

Terminated23 enrollment criteria
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