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Safety and Tolerability of RPE Stem Cell-derived RPE(RPESC-RPE) Transplantation in Patients With Dry Age-related Macular Degeneration (AMD)

A Phase1/2a, Open-Label Study to Evaluate the Safety and Tolerability of RPE Stem Cell-derived RPE (RPESC-RPE) Transplantation as Therapy for Dry Age-related Macular Degeneration (AMD)

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04627428
Enrollment
18
Registered
2020-11-13
Start date
2022-04-05
Completion date
2026-12-01
Last updated
2025-10-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dry Age-related Macular Degeneration

Brief summary

The main objective of the study is evaluation of the safety and tolerability of RPESC-RPE-4W as therapy for dry AMD.

Detailed description

RPESC-RPE-4W is Allogeneic RPE stem cell (RPESC)-derived RPE cells (RPESC-RPE) isolated from the RPE layer of human cadaveric eyes are transplanted under the macular. This first-in-human Phase 1/2a open-label dose-escalation interventional study plans to enroll a total of 18 subjects

Interventions

BIOLOGICALRPESC-RPE-4W

RPESC-RPE-4W

Sponsors

National Institutes of Health (NIH)
CollaboratorNIH
National Eye Institute (NEI)
CollaboratorNIH
Regenerative Research Foundation
CollaboratorUNKNOWN
California Institute for Regenerative Medicine (CIRM)
CollaboratorOTHER
Luxa Biotechnology, LLC
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
55 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Clinical diagnosis of dry AMD. 2. Ability to understand and give informed consent. 3. Adult male or female \>55 years of age. 4. Medically suitable to undergo vitrectomy and subretinal injection (\>60% on Karnofsky scale). 5. Postmenopausal if female (expected to be common for the age limitation), or the female partner of a male subject unable to father children. 6. If male, willing to use barrier and spermicidal contraception during the study.

Exclusion criteria

1. Allergy or hypersensitivity to dilation drops or fluorescein. 2. Active major medical conditions limiting ability to participate in the study. 3. Active malignancy or treatment with chemotherapy. 4. Systemic immunosuppressant therapy within past six months. 5. History of toxoplasmosis, retinal histoplasmosis or tuberculosis. 6. Receipt of investigational product (IP) in a clinical trial within prior six months. 7. Any other medical condition, which, in the Investigator's judgment, will interfere with the subject's ability to comply with the protocol, compromises subject safety, or interferes with the interpretation of the study results. 8. Pregnant or nursing females.

Design outcomes

Primary

MeasureTime frameDescription
Safety and tolerability of RPESC-RPE-4W transplantation24 monthsThe transplantation of RPESC-RPE-4W cells will be considered safe and tolerated in the absence of: * Decrease in visual acuity (VA) of more than 15 Early Treatment Diabetic Retinopathy Study (ETDRS) letters (or to worse than counting fingers at three feet) from baseline * Any Grade 2 (CTCAE v5.0) or greater non-ocular Adverse Events (AE) related to the RPESC-RPE-4W investigational product (IP) or investigational interventions * Intraocular inflammation indicating contamination with an infectious agent or serious immune response greater than moderate severity related to the RPESC-RPE-4W investigational product or investigational interventions * Tumor formation \> 1 mm size related to the IP or investigational interventions

Secondary

MeasureTime frameDescription
Change in the mean of Best Corrected Visual Acuity (BCVA)24 monthsChange in visual acuity will be measured by ETDRS chart.
Loss of ≥10 decibels of ten-degree average visual sensitivity microperimetry24 monthsLoss of ≥10 decibels of ten-degree average visual sensitivity will by measured by microperimetry.
Change in GA lesion area24 monthsChange in GA lesion area will be measured.
Evidence of structural changes24 monthsStructural evidence will be measured by OCT imaging, autofluorescence, fluorescein angiography, and fundus photography

Countries

United States

Contacts

Primary ContactJeffrey H Stern, M.D., Ph.D.
jeffreystern@luxabiotech.com05184371111

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026