Study of EO2002 in Subjects With Corneal Edema Secondary to Corneal Endothelial Dysfunction
EMERALD
A Multicenter, Randomized, Double-Masked, Placebo-Controlled Phase 2 Study of EO2002 in Participants With Corneal Edema Secondary to Corneal Endothelial Dysfunction (EMERALD)
1 other identifier
interventional
121
1 country
1
Brief Summary
This study will evaluate the safety and effectiveness of a single injection of EO2002 at one of two dose levels (150,000 or 500,000 magnetic human corneal endothelial cells \[mHCECs\]), compared with a placebo injection, in participants with corneal edema caused by corneal endothelial dysfunction.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started Sep 2026
Shorter than P25 for phase_2
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 22, 2026
CompletedFirst Posted
Study publicly available on registry
July 27, 2026
CompletedStudy Start
First participant enrolled
September 1, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
February 1, 2028
July 29, 2026
July 1, 2026
11 months
July 22, 2026
July 27, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
BCVA
Proportion of study eyes achieving ≥ 15-letter best-corrected visual acuity (BCVA) improvement at 26 weeks post-treatment as compared to baseline.
26 weeks
Secondary Outcomes (4)
BCVA
26 weeks
CCT
26 weeks
BCVA
26 weeks
BCVA
26 weeks
Study Arms (3)
150K cells - EO2002
EXPERIMENTALIntracameral injection of 150K magnetic human corneal endothelial cells
500K cells - EO2002
EXPERIMENTALIntracameral injection of 500K magnetic human corneal endothelial cells
Placebo
PLACEBO COMPARATORIntracameral injection of vehicle (no cells)
Interventions
Eligibility Criteria
You may qualify if:
- Symptomatic central corneal edema that is primarily responsible for loss of vision associated with endothelial dysfunction which may be secondary to Fuchs corneal dystrophy or pseudophakic bullous keratopathy.
- Early Treatment Diabetic Retinopathy Study (ETDRS)-best-corrected distance visual acuity between 20 and 65 letters inclusive (≥ 20 and ≤ 65 letters)
- Central corneal thickness ≥ 600 μm and ≤ 1,000 μm, OR Medical Monitor review and approval based on either:
- Historical CCT increased by ≥ 50 μm OR
- Findings of edema by corneal tomography or Anterior Segment Optical Coherence Tomography (AS-OCT).
- Participant is considered a surgical candidate for full-thickness corneal transplantation or endothelial (partial thickness) keratoplasty (EK) consistent with standard-of-care indications.
You may not qualify if:
- Corneal disease in either eye (other than corneal endothelial dysfunction secondary to Fuchs dystrophy or pseudophakic bullous keratopathy) including active or prior herpetic ocular infection, severe dry eye disease (e.g., Sjogren's), or active inflammation.
- Central corneal scarring from trauma, burns, or infection, or band keratopathy
- History of keratoconus or other corneal ectasia (e.g., keratoglobus and pellucid marginal degeneration).
- Visually significant cataract, that may limit the participant's ability to demonstrate treatment-related improvement in BCVA.
- Presence of an anterior chamber, sutured, or scleral-fixated intraocular lens.
- Presence of a multifocal or diffractive intraocular lens.
- Prior vitrectomy.
- Corneal refractive surgery.
- Descemet dettachment
- Minimally invasive glaucoma surgery (MIGS), intraocular pressure (IOP)- lowering implant (e.g., Durysta® or iDose®), or any incisional glaucoma surgery (e.g., trabeculectomy, glaucoma drainage implant).
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Emmecelllead
Study Sites (1)
Clinical Site 1
Menlo Park, California, 94025, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Noelia Kunzevitzky, PhD
Emmecell
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 22, 2026
First Posted
July 27, 2026
Study Start
September 1, 2026
Primary Completion (Estimated)
August 1, 2027
Study Completion (Estimated)
February 1, 2028
Last Updated
July 29, 2026
Record last verified: 2026-07
Data Sharing
- IPD Sharing
- Will not share