Active clinical trials for "Retinal Dystrophies"

Objective perimetry can better monitor visual field defects in retinal dystrophy and Glaucoma patients than conventional subjective perimetry. The PLR ( Pupil Light Reflex to short and long wavelength stimuli should be significantly lower compared to healthy participants in areas of visual field defects in retinal dystrophy and Glaucoma patients.

This study will carry out a detailed descriptive analysis of a large population of patients with hereditary retinal dystrophies (HRD): clinical, paraclinical and genetic data. The information drawn from these analyzes will provide a better understanding of the pathophysiology of these rare diseases and this may ultimately impact the medical management of patients (targeted therapy).

This is a prospective Multi-Center Observational Study to assess the reliability and validity of the Multi-Luminance Y-Mobility Test (MLYMT) and Multi-Luminance Shape Discrimination Study (MLSDT) Main Outcome Measures: (i) Performance scores in normal and severely visually impaired subjects with a clinical diagnosis of retinitis pigmentosa (RP) on MLYMT and MLSDT at multiple luminance levels and (ii) reliability and content validity of MLYMT and MLSDT.

The rod-cone dystrophies (often referred to as retinitis pigmentosa (RP)) are a clinically and genetically heterogeneous group of disorders in which there is progressive loss of rod and later cone photoreceptor function leading to severe visual impairment. RP usually occurs as an isolated retinal disorder, but it may also be seen in association with systemic abnormalities.

This study aims to assess the impact of the subretinal implant RETINA IMPLANT Alpha AMS on the patient's daily life, using validated activities of daily living and questionnaires.

The objective of this study is to collect long-term safety information (i.e., for 5 years after treatment) associated with voretigene neparvovec-rzyl (vector and/or transgene), its subretinal injection procedure, the concomitant use of corticosteroids, or a combination of these procedures and products. The enrollment period will last for two years from the first treatment following product approval (through 31March2020) and include a minimum of 40 patients.

Multi-site, non-randomized, observational study, for up to 15 years after subretinal AAV2-hRPE65v2 administration for each subject. The study is a non-interventional, follow-up study of subjects who participated in previous AAV2-hRPE65v2 gene therapy clinical trials.

This study evaluates the safety and effectiveness of the Intelligent Retinal Implants System (IRIS V2). Blind patient suffering from Retinitis Pigmentosa, Cone Rod Dystrophy, or Choroideremia are implanted with an Intelligent Retinal Implant Systeme. All subjects undergo ophthalmological examinations in predefined intervals after implantation. Ophthalmological examinations include funduscopy, slit lamp examination and OCT. All adverse events are recorded and analyzed. Efficacy is measured using functional vision and visual function tests before and after implantation as well as with the system on and system off.

The aim of this study is to determine if umbilical cord Wharton's jelly derived mesenchymal stem cells implanted in sub-tenon space have beneficial effects on visual functions in retinitis pigmentosa patients by reactivating the degenerated photoreceptors in dormant phase.

To evaluate the efficacy and safety of intravitreal ranibizumab (IVR) injection in the treatment of non-leaking macular cysts in patients with retinal dystrophy. Material and Methods: Design - Prospective, nonrandomized, nonblinded, clinical trial. Participants - Patients >18 years diagnosed with retinal dystrophies and non-leaking macular cysts between Jan 2015 and July 2018 in 1 center. Methods - Phase 1: Patients with best corrected visual acuity (BCVA) < 0.5 will receive carbonic anhydrase inhibitors (CAI) [oral acetazolamide 500mg/day or topical brinzolamide twice daily] and followed up for three months. Phase 2: Patients who do not show an adequate response with CAI will receive three 0.5mg IVR injection at monthly intervals. Outcome - 1) Significant reduction (> 10%) of the central macular thickness (CMT), 2) Improvement (> 1 line) in BCVA 3) Presence of any complication.