- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02277054
Safety and Effectiveness of Collagen-phosphorylcholine Bioengineered Cornea in Patients Requiring Lamellar Keratoplasty
October 25, 2018 updated by: The Filatov Institute of Eye Diseases and Tissue Therapy
A Clinical Trial to Evaluate the Safety and Effectiveness of the Collagen-phosphorylcholine Corneal Substitutes in Patients Requiring Lamellar Keratoplasty
In this study the safety and effectiveness of biosynthetic cornea, comprising interpenetrating networks of recombinant human collagen and phosphorylcholine, will be tested in patients with severe corneal pathology (corneal ulcers or corneal opacification from corneal injury, burn or infection) - diseases, where human donor cornea transplantation (the only widely accepted treatment) carries a high risk of rejection.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed Description
Collagen-phosphorylcholine corneal substitute will be implanted in patient's corneas with severe pathology (corneal ulcer, corneal leukoma after burn, trauma or infection) using anterior lamellar keratoplasty technique, i.e. when patient's diseased cornea is removed it will be substituted with proposed transparent implant.
Usually these patients are grafted with human donor cornea, but the latter frequently fails due to graft-versus-host problems.
We will test the safety (incidence of adverse events, biocompatability) and the effectiveness (ability to promote healing and increase vision) of developed biosynthetic corneas in 10 patients with corneal pathology, where human donor cornea carries a high risk of rejection.
The patients will be follow-uped for 12 months.
Study Type
Interventional
Enrollment (Actual)
5
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
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Odessa, Ukraine, 65061
- The Filatov Institute of Eye Diseases and Tissue Therapy
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
16 years to 78 years (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Subjects must sign and be given a copy of the written Informed Consent form.
- Subjects with best corrected distance visual acuity 20/200 or worse as a result of corneal ulcer or corneal scar due to burn, injury or infection in the operative eye.
- Subjects must be willing and able to return for scheduled follow-up examinations for 12 months after surgery.
Exclusion Criteria:
- Subjects with severe or life-threatening systemic disease.
- Subjects with uncontrolled hypertension.
- Subjects with uncontrolled diabetes or insulin-dependent diabetes.
- Subjects with glaucoma in either eye.
- Subjects with marked microphthalmos or aniridia in either eye.
- Subjects with any other serious ocular pathology, serious ocular complications at the time of corneal transplant underlying serious medical conditions, based on the investigator's medical judgment.
- Subjects which are or lactating or who plan to become pregnant over the course of the clinical investigation.
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Collagen-MPC cornea substitute
Collagen-phosphorylcholine (collagen-MPC) cornea substitute transplantation using anterior lamellar keratoplasty technique.
|
Patients will undergo surgery using conventional anterior lamellar keratoplasty technique: diseased cornea will be trephined to approximately 50-90% of corneal thickness (depending on corneal ulcer or scar depth) and then a lamellar dissection will be created.
Trephine diameter will depend on ulcer or leukoma maximal size.
Alternatively a femtosecond laser may be used to create the dissection.
A collagen-phosphorylcholine cornea 250-500 microns thick and equal or 0.25 mm larger diameter is placed and sutured.
The sutures are superimposed and the implant and the sutures covered with a bandage contact lens.
The sutures and bandage lens will be removed later after the initial healing period of 4 weeks or as determined by physician depending on the implant epithelial coverage.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Incidence of Treatment-Emergent Adverse Events
Time Frame: 12 months
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Implant safety and tolerability will be measured by absence/presence of its lysis as well as by degree of eye inflammation based on conjunctival injection, perifocal corneal haze, aqueous humor transparency, increased intraocular pressure and self reported postoperative pain.
Each item is scored 0-4: 0 = no symptom, 4 = severe symptom.
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12 months
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of Participants With Healed Cornea at 12 Months
Time Frame: 12 months
|
Cornea is considered to have healed up when there is no defect of corneal epithelium, which is confirmed by fluorescein staining of corneal surface
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12 months
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Number of Participants With Improved Visual Acuity at 12 Months
Time Frame: 12 months
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Improvement of 1 or more lines in Corrected Distance Visual Acuity in comparison to preoperative visual acuity
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12 months
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Collaborators
Investigators
- Study Director: Nataliya Pasyechnikova, MD, PhD, DSc, The Filatov Institute of Eye Diseases and Tissue Therapy
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
General Publications
- Liu W, Deng C, McLaughlin CR, Fagerholm P, Lagali NS, Heyne B, Scaiano JC, Watsky MA, Kato Y, Munger R, Shinozaki N, Li F, Griffith M. Collagen-phosphorylcholine interpenetrating network hydrogels as corneal substitutes. Biomaterials. 2009 Mar;30(8):1551-9. doi: 10.1016/j.biomaterials.2008.11.022. Epub 2008 Dec 20.
- Hackett JM, Lagali N, Merrett K, Edelhauser H, Sun Y, Gan L, Griffith M, Fagerholm P. Biosynthetic corneal implants for replacement of pathologic corneal tissue: performance in a controlled rabbit alkali burn model. Invest Ophthalmol Vis Sci. 2011 Feb 3;52(2):651-7. doi: 10.1167/iovs.10-5224.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
March 1, 2013
Primary Completion (Actual)
October 1, 2016
Study Completion (Actual)
January 1, 2017
Study Registration Dates
First Submitted
October 26, 2014
First Submitted That Met QC Criteria
October 27, 2014
First Posted (Estimate)
October 28, 2014
Study Record Updates
Last Update Posted (Actual)
October 26, 2018
Last Update Submitted That Met QC Criteria
October 25, 2018
Last Verified
October 1, 2018
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 03/2013
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
No
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
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.
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