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Single-center, Single arm, Prospective, Pivotal Clinical Study to evaluate the safty and efficacy of Corneal prosthesis (C-Clear) in patients with vision loss due to congenital or acquired corneal damage who are unsuited to donated corneal tissue

Single-center, Single arm, Prospective, Pivotal Clinical Study to evaluate the safty and efficacy of Corneal prosthesis (C-Clear) in patients with vision loss due to congenital or acquired corneal damage who are unsuited to donated corneal tissue

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
CRIS
Registry ID
KCT0007652
Enrollment
12
Registered
2022-08-09
Start date
2022-10-04
Completion date
Unknown
Last updated
2022-10-24

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

Conditions

None listed

Interventions

Medical Device : As single group intervention model, the corneal prosthesis (C-Clear) was implanted during penetrating keratoplasty.

Sponsors

Asan Medical Center
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Adult with vision loss (less than ETDRS Letter Score 35) due to congenital or acquired corneal damage who are unsuited to donated corneal tissue. 2) Adult having normal intraocular pressure. 3) Adult who had not penetrating keratoplasty via donated corneal tissue in the past year. 4) If a woman of childbearing age, a woman consenting to the use to one of suitable contraceptive measures during the clinical study.

Exclusion criteria

Exclusion criteria: 1) Patient having a retina or optic nerve diseases. 2) Patient with uncontrolled eye inflammation by a drug. 3) Patient with a medical history of malignant tumor in eye or its surroundings. 4) Patient with the target eye for the penetrating keratoplasty is a last eye. 5) Patient having a unsuitable function of eyelid. 6) Patient having corneal thinckness of the target eye for the penetrating keratoplasty is less than 400 micrometer or over 1200 micrometer. 7) Patient with a medical histroy of hypersensitivity reaction to iridodilator. 8) Patient with a medical histroy of keloid. 9) A woman of childbearing age having pregnancy or planning pregnancy, and a nursing woman. 10) Patient with a mental disease. 11) Patient with a serious general disease.

Design outcomes

Primary

MeasureTime frame
Best corrected visual acuity;Measurement of corneal thinckness;Examination of optic disk and nerve fibre layer;Examination of retina

Secondary

MeasureTime frame
Intraocular pressure measure

Countries

Korea, Republic of

Contacts

Public ContactSanghyu Nam

Asan Medical Center

thehyu@gmail.com+82-2-3010-3680

Outcome results

None listed

Source: CRIS (via WHO ICTRP) · Data processed: Feb 4, 2026