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RecruitingPhase 2

A Phase IIb Randomized, Multicenter Trial of Subretinal CPCB-RPE1 in Advanced Dry AMD (Geographic Atrophy)

Regenerative Patch Technologies, LLC · with California Institute for Regenerative Medicine (CIRM) · NCT06557460

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Opens the official ClinicalTrials.gov record, with the study team’s contacts. Bored Studies doesn’t enroll anyone.

Key facts

Compensation
Not posted. Ask the study team before screening.
Who can join
Ages 55–90 · All sexes
Healthy volunteers
Not accepted (a condition is required)
Study type
Interventional · Phase 2
Target enrollment
24
US sites recruiting
5
Study start
August 1, 2025
Record last updated
September 23, 2026

Status re-checked against ClinicalTrials.gov within the last 12 hours.

What the study is about

This is a Phase IIb randomized, clinical trial designed to assess the safety and efficacy of unilateral implantation of the CPCB-RPE1 implant in subjects with geographic atrophy involving the fovea.

Up to 6 surgical implantation sites will deliver the CPCB-RPE1 in this Phase IIb clinical trial. Additional study sites may serve as referral or follow-up sites. Twenty-four (24) subjects will participate in the trial and will be randomized 3:1 to one of 2 groups:

  • The treatment group receiving the CPCB-RPE1 implant (up to 18 subjects).
  • The control group receiving a simulated "sham" implantation procedure (up to 6 subjects)

Being studied: Surgical implantation of the CPCB-RPE1 implant

Conditions: Dry Age-related Macular Degeneration; Geographic Atrophy

Eligibility criteria

Copied from the official record. The study team makes the final decision at screening.

Show full criteria

Eligible participants include

  • Age 55 to 90 years of age (inclusive), presenting with geographic atrophy involving the fovea in advanced, age-related, dry AMD.
  • Clinical findings consistent with advanced dry AMD with evidence of one or more areas of ≥4.0mm2 but not exceeding 15.0 mm2 of geographic atrophy involving the fovea.
  • Geographic atrophy defined as attenuation or loss of RPE as observed by biomicroscopy, OCT, or FAF.
  • The best-corrected visual acuity (BCVA) of the eye to receive the implant will be ≥20/200 (35 EDTRS letters) to 20/63 (60 EDTRS letters) inclusive. The BCVA of the eye that is NOT to receive the implant will be better or equal to the eye that will receive the implant.
  • Medically suitable to undergo pars plana vitrectomy and the surgical implant procedure, including being able to position post-operatively and use post-operative medications as required.
  • Medically suitable for general anesthesia or monitored intravenous sedation, if needed.
  • Pseudophakic in the study eye, to remove the risk of cataract formation following vitrectomy.
  • Participants also must be willing and able to provide written, signed informed consent for this study.
  • Participants able to complete the baseline microperimetry retinal sensitivity testing.
  • On baseline microperimetry, participants must have ≥5 spots in the perilesional region with a retinal sensitivity between 3 and 17 Db.

Recruiting US locations

  • Retina Associates of Southern California

    Huntington Beach, CA 92647

    Site contact: 833-734-3678 · clinicaltrials@regenerativepatch.com

  • USC - Keck

    Los Angeles, CA 90033

    Site contact: 833-734-3678 · clinicaltrials@regenerativepatch.com

  • University Retina

    Lemont, IL 60439

    Site contact: 833-734-3678 · clinicaltrials@regenerativepatch.com

  • Austin Retina Associates

    Austin, TX 78705

    Site contact: Clinical Research · 833-734-3678 · clinicaltrials@regenerativepatch.com

  • Retina Consultants of Texas

    The Woodlands, TX 77384

    Site contact: 833-734-3678 · clinicaltrials@regenerativepatch.com

Study contacts (from the official record)

  • Clinical Research · 833-734-3678 · clinicaltrials@regenerativepatch.com
  • Clinical Research · 650-394-5835
A Phase IIb Randomized, Multicenter Trial of Subretinal CPCB-RPE1… (NCT06557460) | Bored Studies