The investigator is examining the safety of transplanting cells into the subretinal space of patients with Retinitis Pigmentosa (RP). The cells are called neural progenitor cells, which are a type of stem cell that can become several different types of cells in the nervous system. These cells have been derived to specifically become astrocytes, which is a type of neuronal cell. The cells are called "CNS10-NPC." The investigational treatment has been tested in animals, but it has not yet been tested in people. In this study, the investigators want to learn if CNS10-NPC cells are safe to transplant into the subretinal space of people.
This study will be the first to use a human progenitor cell line to treat retinitis pigmentosa in people. This is a Phase 1/2a, single-center, open label, safety study of two escalating doses of human neural progenitor cells (CNS10-NPC) delivered unilaterally to the subretinal space of subjects with RP.
Subjects meeting all Eligibility Criteria and providing Informed Consent will be enrolled in one of two sequential dosing groups. Subjects will be treated sequentially with a minimum of one month interval between surgeries for the first three subjects in each dosing cohort. The remaining subjects in the cohort will be treated with a minimum interval of at least one week between surgeries.
Primary objective. To assess the safety and tolerability of two escalating doses of clinical grade human fetal cortical-derived neural progenitor cells (CNS10-NPC) administered in the subretinal space of one eye (unilaterally) in patients with retinitis pigmentosa (RP).
Secondary objectives. Within constraints of a small first in-human study focused on safety:
| Condition | Retinitis Pigmentosa |
|---|---|
| Treatment | CNS10-NPC implantation |
| Clinical Study Identifier | NCT04284293 |
| Sponsor | Cedars-Sinai Medical Center |
| Last Modified on | 21 September 2023 |
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