Ignite Creation Date:
2025-12-18 @ 8:16 AM
Ignite Modification Date:
2025-12-23 @ 6:57 PM
Study NCT ID:
NCT02374723
Status:
None
Last Update Posted:
2016-04-15 00:00:00
First Post:
2015-02-23 00:00:00
Is Possible Gene Therapy:
False
Has Adverse Events:
False
Brief Title:
Evaluation of Biosynthetic Constructs to Replace Donor Corneas
Sponsor:
None
Organization:
Study Overview
Official Title:
Evaluation of Biosynthetic Constructs as Replacement for Donor Corneas as Graft Material for Corneal Transplantation
Status:
None
Status Verified Date:
2016-04
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
This study was withdrawn to be replaced with a multi-site Phase I trial.
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
12 patients will be recruited from the waitinglist for corneal transplantation.The will all be of the age of 18 years or older and capable of making their own decisions. Their medical history and present medication is reveiwed and they undergo a thorough ophthalmological examination in order to find out if they meet the inclusion criteria and create baseline values for the study. Their general health or medication should not affect the cornea or ocular surface. The Eye should be healthy with the exception of the disease indication for corneal grafting. The corneal endothelium should be healthy. Any opacification in the eye to be grafted should not reach the Descemets membrane. Visual acuity in the fellow eye should be good. If these criteria are met the patient recieve oral and written information of the study. If they agree to participate they will be randomized to either recieve biosynthetic corneas ( 6 patients) or they will recieve a donated cornea ( 6 patients) . They will be scheduled for surgery within 2 weeks from the examination irrespective if they participate in the study or not.
The surgery will be anterior deep lamellar using the femtosecond laser to do the patient cut. The laser cut wil be done in topical anaaestesi. The remaining surgery with either be performed in local oor general anaestesia according to the patients wish. The diameter of the cut will be 7 mm in diameter. The graft material will be punched to a diameter of 7.25 mm. The thickness of the material will be 500 µm . An amniotic membrane will be placed on the top of the biosynthetic material and sutured with single stiches together with the graft.A bandage lens will be placed . The donated corneas will be sutured with singled about 8 stiches.
The biosynthetic corneas will recieve topical antibiotics and dexametasone for 8 weeks when the sutures, remnants of the amniotic membrane and the bandage lens is removed. The donated corneas will recieve topical dexametasone for 5 months and the sutures will be removed after 6 months.
The check-up Schedule will be at 1 day,1,2 weeks,1,,2 months and extra when needed.The protocol in these check-ups will be descriptive and the exyes will be documented with slit lamp photography. Epitelialisation will be monitored with fluorescein staining.
At the 3,6,9 and12 months will be extensive and the same in both groups. UCVA and BSCVA will be measured and also BCLCVA at 12 months. Corrneal topography,thickness sensitivity,tear production Visante OCT and slit- lamp photography will be performed. Tear samples will be taken also form earlier check-ups for proteomic analysis. In vivo confocal microscopy will be performed. The different examination with few exceptions can all be presented in results that can be quantified and statistically analysed.
The CRFs and the adverse report forms will be filled out both on computer forms and on paper.
The safety outcome criteria are: Good engraftment, maintained integrity of the graft, epithelialisation, transparency,no induced inflammation,no induced vasculatisation.
The preliminary efficacy criteria are: UCVA,BSCVA and BCLCVA
The surgery will be anterior deep lamellar using the femtosecond laser to do the patient cut. The laser cut wil be done in topical anaaestesi. The remaining surgery with either be performed in local oor general anaestesia according to the patients wish. The diameter of the cut will be 7 mm in diameter. The graft material will be punched to a diameter of 7.25 mm. The thickness of the material will be 500 µm . An amniotic membrane will be placed on the top of the biosynthetic material and sutured with single stiches together with the graft.A bandage lens will be placed . The donated corneas will be sutured with singled about 8 stiches.
The biosynthetic corneas will recieve topical antibiotics and dexametasone for 8 weeks when the sutures, remnants of the amniotic membrane and the bandage lens is removed. The donated corneas will recieve topical dexametasone for 5 months and the sutures will be removed after 6 months.
The check-up Schedule will be at 1 day,1,2 weeks,1,,2 months and extra when needed.The protocol in these check-ups will be descriptive and the exyes will be documented with slit lamp photography. Epitelialisation will be monitored with fluorescein staining.
At the 3,6,9 and12 months will be extensive and the same in both groups. UCVA and BSCVA will be measured and also BCLCVA at 12 months. Corrneal topography,thickness sensitivity,tear production Visante OCT and slit- lamp photography will be performed. Tear samples will be taken also form earlier check-ups for proteomic analysis. In vivo confocal microscopy will be performed. The different examination with few exceptions can all be presented in results that can be quantified and statistically analysed.
The CRFs and the adverse report forms will be filled out both on computer forms and on paper.
The safety outcome criteria are: Good engraftment, maintained integrity of the graft, epithelialisation, transparency,no induced inflammation,no induced vasculatisation.
The preliminary efficacy criteria are: UCVA,BSCVA and BCLCVA
Detailed Description:
None
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: