- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05717673
Effect of Epi-Off Technique Corneal CXL On Endothelial Count by Specular Microscopy in Keratoconus Patients
Effect of Epi-Off Technique in Corneal Collagen Cross Linking On Endothelial Count by Using Specular Microscopy in Keratoconus Patients
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Specular microscopy is a noninvasive photographic technique that analyze the corneal endothelium. Using computer-assisted morphometry, modern specular microscopes analyze the size, shape and population of the endothelial cells. The instrument projects light onto the cornea and captures the image that is reflected from the optical interface between the corneal endothelium and the aqueous humor. The reflected image is analyzed by the instrument and displayed as a specular photomicrograph
Corneal collagen cross-linking (CXL) is a therapeutic procedure aiming at increasing the corneal stiffness in the keratoconus eyes by induction of cross-links within the extracellular matrix. It is achieved by ultraviolet-A (370 nm) irradiation of the cornea after saturation with the photosensitizer riboflavin. In the conventional CXL protocol, a minimum (manual) de-epithelialized corneal thickness of 400 μm is recommended to avoid potential irradiation damage to the corneal endothelium. In advanced keratoconus, however, stromal thickness is often lower than 400 μm, which limits the application of CXL in that category. Efforts have been undertaken to modify the conventional CXL procedure to be applicable in thin corneas. The current review discusses different techniques employed to achieve this end and their results. The overall safety and efficacy of the modified CXL protocols are good, as most of them managed to halt the progression of keratectasia without postoperative complications. However, the evidence of safety and efficacy in the use of modified CXL protocols is still limited to few studies with few patients involved. Controlled studies with long-term follow-up are required to confirm the safety and efficacy of it.
Study Type
Enrollment (Anticipated)
Contacts and Locations
Study Contact
- Name: Wael Mo Soliman, Md
- Phone Number: 0106 55665302
- Email: wael.soliman@med.au.edu.eg
Study Contact Backup
- Name: Dalia mo elsebati, Md
- Phone Number: 01223212962
- Email: drdalia@aun.edu.eg
Study Locations
-
-
-
Assiut, Egypt, 088
- Recruiting
- Assuit University
-
Contact:
- Wael Mo Soliman, Md
- Phone Number: 0106 55665302
- Email: wael.soliman@med.au.edu.eg
-
Contact:
- Dalia mo elsebati, Md
- Phone Number: 01223212962
- Email: drdalia@aun.edu.eg
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Patients with corneal diseases that treated by collagen cross linking such as keratokonus and post lasic ectesia with corneal thickness above 400um at its thinnest location.
Exclusion Criteria:
- Prior herpetic infection
- Autoimmune disorders
- corneal thickness below 400um at its thinnest location
- Corneal opacity
Study Plan
How is the study designed?
Design Details
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Determine safety of CXL on corneal endothelial count by using specular microscopy in patients with keratoconus
Time Frame: 6 months
|
by using specular microscopy to assess endothelial count to prevent corneal damages
|
6 months
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Study Director: Mohammed Aly Momen, Assiut University
Study record dates
Study Major Dates
Study Start (ACTUAL)
Primary Completion (ANTICIPATED)
Study Completion (ANTICIPATED)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ACTUAL)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- EOEOCXLOEnCBsMK
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Keratoconus, Collagen
-
Sight Medical Doctors PLLCOcular Therapeutix, Inc.CompletedPostoperative Pain | Keratoconus, Unstable | Collagen CrosslinkingUnited States
-
Fayoum UniversityCompletedIOP Readings Before and After Accelerated Corneal Collagen Crosslinking (CXL)Egypt
-
Benha UniversityCompletedCollagen Diseases | Keratoconus | Corneal DiseaseEgypt
-
The Cleveland ClinicUniversity of MarylandEnrolling by invitationKeratoconus | Keratoconus, Unstable | Keratoconus, StableUnited States
-
Eye Hospital Pristina KosovoActive, not recruitingKeratoconus | Keratoconus of Right Eye | Keratoconus, Unstable, Right EyeKosovo
-
Tianjin Eye HospitalRecruitingScansys, Pentacam, Keratoconus, Subclinical KeratoconusChina
-
Tianjin Eye HospitalActive, not recruitingScansys, Pentacam, Corvis ST, Keratoconus, Subclinical KeratoconusChina
-
Kent Wellish MDNot yet recruitingKeratoconus, Unstable
-
Kasr El Aini HospitalUnknownProgressive KeratoconusEgypt
-
Centre Hospitalier Régional Metz-ThionvilleCompletedProgressive Keratoconus
Clinical Trials on Specular microscopy
-
Assiut UniversityNot yet recruiting
-
Assiut UniversityUnknownAccelerated Corneal Collagen Cross Linking
-
Assiut UniversityNot yet recruitingCorneal Endothelial Cell Changes in Diabetic Patients
-
Assiut UniversityNot yet recruitingEndothelial Cell Loss, Corneal
-
Federal University of São PauloCompleted
-
Assiut UniversityNot yet recruitingEvaluation of Corneal Endothelium in Elderly Diabetic Patient
-
Groupe Hospitalier Paris Saint JosephWithdrawn
-
Assiut UniversityCompleted
-
Topcon Medical Systems, Inc.CompletedCorneal Endothelial Cell LossUnited States