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Multicenter Investigator-initiated clinical trial using cultivated autologous oral mucosal epithelial cell sheet (COMET01) transplantation for patients with limbal stem-cell deficiency

Multicenter Investigator-initiated clinical trial using cultivated autologous oral mucosal epithelial cell sheet (COMET01) transplantation for patients with limbal stem-cell deficiency - Multicenter Investigator-initiated clinical trial using COMET01 for patients with limbal stem-cell deficiency

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000018662
Enrollment
6
Registered
2015-08-13
Start date
2015-08-14
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

limbal stem-cell deficiency

Interventions

Removal of oral mucosal tissue, COMET01 transplantation

Sponsors

Department of Ophthalmology, Osaka University Graduate School of Medicine
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Limbal stem-cell deficiency patients who are classified as LSCD Stage III 2) Patients who don't have extensive oral mucosal scarring and have healthy oral mucosal tissue for harvest. 3) Aged 20 years old and over

Exclusion criteria

Exclusion criteria: 1) contraindication to antimicrobials, steroid drugs, and anesthetics used in the trial 2) allergy to antibiotics of penicillin, kanamycin, streptomycin, amphotericin B; Medical history of allergy to penicillin antibiotic and aminoglycoside antibiotic 3) medical history of allergy to animal (cattle, mice, or pigs) 4) malignant tumor within 5 years before registration, or doubtful malignant tumor 5) glaucoma with uncontrollable IOP 6) diabetes with uncontrollable glycemic control 7) eye with central visual field defect 8) extremely severe dry eye 9) planned intraocular surgery during the trial 10) eye with severe eyelid defect 11) systemic complications unsuitable for entry in this trial 12) pregnant/lactating women, might be pregnant women; wish to become pregnant women 13) another trial participant within 16 weeks before COMET01 transplantation, planning to participate in another trial during this trial 14) unsuitable for entry in this trial judged by principal investigator or sub-investigators

Design outcomes

Primary

MeasureTime frame
success rate of corneal epithelium reconstruction 52 weeks after COMET01 transplantation

Secondary

MeasureTime frame
Efficacy 1) case number of each LSCD staging 52 weeks after COMET01 transplantation 2) subjective symptom 3) visual acuity 4) QOL 5) corneal opacity 6) corneal neovascularization 7) symblepharon 8) additional therapy for visual improvement 52 weeks after COMET01 transplantation or at the date of termination 9) LSCD staging, subjective symptom, visual acuity, corneal opacity, corneal neovascularization, and symblepharon of fellow eye Safety 1) Safety endpoint i. SPK ii. corneal epithelial defect iii. keratinization iv. conjunctival injection v. infectious keratitis vi. endophthalmitis 2) Adverse events and Product-related adverse events 3) Severe product-related adverse events

Countries

Japan

Contacts

Public ContactYoshinori Oie

Osaka University Graduate School of Medicine Department of Ophthalmology

yoie@ophthal.med.osaka-u.ac.jp+81-6-6879-3456

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026