Clinical Research Directory

Natural History Study of Advanced RCD

ECSTASI is a Natural History Study, which will be monitoring how standard of care (SoC) affect advanced rod-cone dystrophy (RCD), a type of eye disease also known as retinitis pigmentosa. No experimental, investigational or any other drug or treatment will be tested during the study. This study collects information in 3 parts: Part 1: retrospective health information from medical records (up to past 10 years), Part 2: prospective health information from in-person visits (up to 1 year), and Part 3: prospective health information from medical records (up to 1 year). Participants will decide if they wish to participate in all or only to some of these parts.

Open-Label Study to Evaluate the Safety, Tolerability, and Efficacy of Gene Therapy (SPVN20) in Subjects With Rod-Cone Dystrophy

This open-label, multi-center study is to evaluate the safety, tolerability, and efficacy of escalating doses of a gene therapy called SPVN20 administered via a single intravitreal injection in participants with advanced Rod-Cone Dystrophy.

Brain Stimulation Effects on Orientation and Mobility Skills in Adults With Vision Impairment

This pilot clinical trial evaluates whether non-invasive brain stimulation improves the orientation and mobility (O\&M) skills of individuals with constricted visual fields in both eyes. The study is composed of three visits. The first visit is meant to confirm eligibility by performing a few clinical tests. Eligible participants will then complete two additional visits, one in which the participants receive active stimulation, and one in which the participants receive placebo (sham) stimulation. Stimulation will be administered in a randomized, double-blind order. To evaluate improvement, various measures of O\&M performance will be assessed on a standardized obstacle course featuring static natural and artificial obstacles at defined intervals after the intervention. We hypothesize that the application of hf-tRNS to V1 will improve the orientation and mobility skills of individuals with constricted visual fields immediately following stimulation as a results of enhanced periphery through modulation of the mechanisms responsible for crowding, thereby reducing crowding effects and improving contrast for individuals with rod-cone dystrophy and RP (genetic conditions), whereas for individuals with glaucoma (a neurogenerative condition), any improvement noted would be attributed to be enhanced processing of visual signal in the affected periphery. The results will inform the design of a future, larger-scale study.

Adaptive Optics Imaging of Outer Retinal Diseases

The objective of the study is to collect adaptive optics (AO) retinal images from human subjects with outer retinal diseases (diseases of the outer retina including photoreceptor, retinal pigment epithelium (RPE), basement membrane or choroidal pathologies) to develop new diagnostic methods, biomarkers, and clinical endpoints.