Corneal DiseasesFANCYNCT00810472
Functional Antigen Matching in Corneal Transplantation
A study testing HLA Matching and Penetrating keratoplasty in people with Corneal Diseases, run by University Hospital Freiburg at 1 site in Germany.
Trial summary
Penetrating keratoplasty is one of the most commonly performed transplantation surgeries. Graft rejection is a major complication. HLA compatibility has already been demonstrated an effective prophylaxis in several retrospective investigations. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Corneal Diseases
- What is being tested?
- HLA Matching and Penetrating keratoplasty
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 650 participants
- Where
- 1 siteGermany
- Study dates
- Sep 2009to May 2015
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Predicted waiting time for a 4/6 match lower than 6 months.
Who cannot join
- Minority
- Legal incapacity
Trial locations and contacts
1 site in 1 country.
Germany1 site
University Eye Hospital Freiburg
Freiburg im Breisgau, Baden-Wurttemberg, 79106
About this study
Official title: Clinical Trial to Investigate Superiority of HLA Matching in Comparison to Random Graft Assignment With Respect to the Endpoint 'Time to First Endothelial Graft Rejection' in Penetrating Keratoplasty.
Penetrating keratoplasty is one of the most commonly performed transplantation surgeries. Graft rejection is a major complication. HLA compatibility has already been demonstrated an effective prophylaxis in several retrospective investigations. The purpose of the investigators randomized clinical trial is to demonstrate superiority of HLA matching in comparison to random graft assignment with respect to the endpoint 'time to first endothelial graft rejection' in penetrating keratoplasty. The investigators will perform DNA-based allele resolution typing.
- Conditions
- Corneal Diseases
- Being tested
- HLA Matching, Penetrating keratoplasty
- Keywords
- Penetrating keratoplasty, HLA matching, Corneal diseases that require penetrating keratoplasty
- Medical subject headings
- Corneal Diseases
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
HLA MatchingOther
HLA matching is exerted by selecting the donor with least-most additional HLA alleles. We will predict the waiting time for such a donor in order to assess eligibility for the trial [8]. In addition, we will dynamically adopt the degree of matching that is aimed at depending on the predicted time interval and actual waiting time: the first donors not exerting more than 7 mismatches at the triplet-amino-acid-residue-level (HLAMatchmaker method [6]) is accepted if the patient is waiting less than half of his predicted waiting time. The next available donor exerting a 2/6 match (or better) is assigned thereafter. The next graft will be assigned, regardless of HLA matching after 6 months.
Penetrating keratoplastyProcedure or surgery
Corneal transplantation.
| Study group | Role | What they receive |
|---|---|---|
| HLA Matching | Experimental | HLA matching is exerted by selecting the donor with least-most additional HLA alleles. We will predict the waiting time for such a donor in order to assess eligibility for the trial [8]. In addition, we will dynamically adopt the degree of matching that is aimed at depending on the predicted time interval and actual waiting time: the first donors not exerting more than 7 mismatches at the triplet-amino-acid-residue-level (HLAMatchmaker method [6]) is accepted if the patient is waiting less than half of his predicted waiting time. The next available donor exerting a 2/6 match (or better) is assigned thereafter. The next graft will be assigned, regardless of HLA matching after 6 months. Receives: Other: HLA Matching; Procedure: Penetrating keratoplasty |
| Random graft assignment | Placebo comparator | Not described Receives: Procedure: Penetrating keratoplasty |
What is being measured
The primary outcome is the main question the study is designed to answer.
Time to first endothelial graft rejection.
Measured: Mostly within the first six months.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted18 Dec 2008 (estimated)
- Study startSep 2009
- Primary completionMay 2015
- Study completionMay 2015
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (8)Papers the sponsor has linked to this study.
- Other trials for Corneal DiseasesStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Participant
- Enrolment
- 650 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University Hospital Freiburg
- Sponsor type
- University, hospital or other
- Collaborators
- German Research Foundation
- Responsible party
- Principal investigator, Daniel Böhringer, University Hospital Freiburg
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00810472
- Sponsor's protocol ID
- FR-2008-FANCY
- Acronym
- FANCY
- Status last verified
- Oct 2016
- First submitted
- 17 Dec 2008
- Last updated
- 25 Oct 2016
- Results posted
- No
- Data monitoring committee
- Yes
Publications
Bohringer D, Spierings E, Enczmann J, Bohringer S, Sundmacher R, Goulmy E, Reinhard T. Matching of the minor histocompatibility antigen HLA-A1/H-Y may improve prognosis in corneal transplantation. Transplantation. 2006 Oct 27;82(8):1037-41. doi: 10.1097/01.tp.0000235908.54766.44.
PubMed 17060851Reinhard T, Spelsberg H, Henke L, Kontopoulos T, Enczmann J, Wernet P, Berschick P, Sundmacher R, Bohringer D. Long-term results of allogeneic penetrating limbo-keratoplasty in total limbal stem cell deficiency. Ophthalmology. 2004 Apr;111(4):775-82. doi: 10.1016/j.ophtha.2003.07.013.
PubMed 15051212Reinhard T, Bohringer D, Enczmann J, Kogler G, Mayweg S, Wernet P, Sundmacher R. Improvement of graft prognosis in penetrating normal-risk keratoplasty by HLA class I and II matching. Eye (Lond). 2004 Mar;18(3):269-77. doi: 10.1038/sj.eye.6700636.
PubMed 15004576Bohringer D, Reinhard T, Duquesnoy RJ, Bohringer S, Enczmann J, Lange P, Claas F, Sundmacher R. Beneficial effect of matching at the HLA-A and -B amino-acid triplet level on rejection-free clear graft survival in penetrating keratoplasty. Transplantation. 2004 Feb 15;77(3):417-21. doi: 10.1097/01.TP.0000110415.10401.94.
PubMed 14966417Reinhard T, Bohringer D, Enczmann J, Kogler G, Wernet P, Bohringer S, Sundmacher R. HLA class I/II matching and chronic endothelial cell loss in penetrating normal risk keratoplasty. Acta Ophthalmol Scand. 2004 Feb;82(1):13-8. doi: 10.1046/j.1600-0420.2003.00188.x.
PubMed 14738484Bohringer D, Reinhard T, Enczmann J, Godehard E, Sundmacher R. Individual analysis of expected time on the waiting list for HLA-matched corneal grafts. Dev Ophthalmol. 2003;36:50-5. doi: 10.1159/000067648.
PubMed 12494680Bohringer D, Grotejohann B, Ihorst G, Reinshagen H, Spierings E, Reinhard T. Rejection Prophylaxis in Corneal Transplant. Dtsch Arztebl Int. 2018 Apr 13;115(15):259-265. doi: 10.3238/arztebl.2018.0259.
PubMed 29735006Bohringer D, Ihorst G, Grotejohann B, Maurer J, Spierings E, Reinhard T; FANCY study group. Functional antigen matching in corneal transplantation: matching for the HLA-A, -B and -DRB1 antigens (FANCY) - study protocol. BMC Ophthalmol. 2014 Dec 13;14:156. doi: 10.1186/1471-2415-14-156.
PubMed 25496165
Study at a glance
From the registry record, last updated by the sponsor on 25 Oct 2016. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Clinical Trial to Investigate Superiority of HLA Matching in Comparison to Random Graft Assignment With Respect to the Endpoint 'Time to First Endothelial Graft Rejection' in Penetrating Keratoplasty.
- ClinicalTrials.gov ID
- NCT00810472
- Acronym / sponsor ID
- FANCY / FR-2008-FANCY
- Conditions
- Corneal Diseases
- Keywords
- Penetrating keratoplasty, HLA matching, Corneal diseases that require penetrating keratoplasty
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 650 participants (estimated)
- Lead sponsor
- University Hospital FreiburgUniversity, hospital or other
- Collaborators
- German Research Foundation
- Study start
- Sep 2009
- Primary completion
- May 2015 (actual)
- Study completion
- May 2015 (actual)
- First posted
- 18 Dec 2008 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Penetrating keratoplasty is one of the most commonly performed transplantation surgeries. Graft rejection is a major complication. HLA compatibility has already been demonstrated an effective prophylaxis in several retrospective investigations. The purpose of the investigators randomized clinical trial is to demonstrate superiority of HLA matching in comparison to random graft assignment with respect to the endpoint 'time to first endothelial graft rejection' in penetrating keratoplasty. The investigators will perform DNA-based allele resolution typing.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (participant)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| HLA Matching | Experimental | Other: HLA Matching, Procedure: Penetrating keratoplastyHLA matching is exerted by selecting the donor with least-most additional HLA alleles. We will predict the waiting time for such a donor in order to assess eligibility for the trial [8]. In addition, we will dynamically adopt the degree of matching that is aimed at depending on the predicted time interval and actual waiting time: the first donors not exerting more than 7 mismatches at the triplet-amino-acid-residue-level (HLAMatchmaker method [6]) is accepted if the patient is waiting less than half of his predicted waiting time. The next available donor exerting a 2/6 match (or better) is assigned thereafter. The next graft will be assigned, regardless of HLA matching after 6 months. |
| Random graft assignment | Placebo comparator | Procedure: Penetrating keratoplasty |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- Predicted waiting time for a 4/6 match lower than 6 months.
Key exclusion criteria (2 listed)
- Minority
- Legal incapacity
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| HLA MatchingHLA matching is exerted by selecting the donor with least-most additional HLA alleles. We will predict the waiting time for such a donor in order to assess eligibility for the trial [8]. In addition, we will dynamically adopt the degree of matching that is aimed at depending on the predicted time interval and actual waiting time: the first donors not exerting more than 7 mismatches at the triplet-amino-acid-residue-level (HLAMatchmaker method [6]) is accepted if the patient is waiting less than half of his predicted waiting time. The next available donor exerting a 2/6 match (or better) is assigned thereafter. The next graft will be assigned, regardless of HLA matching after 6 months. | Other | HLA Matching |
| Penetrating keratoplastyCorneal transplantation. | Procedure or surgery | HLA Matching, Random graft assignment |
Primary outcome
Time to first endothelial graft rejection.
Time frame: Mostly within the first six months.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 25 Oct 2016.
- Background: PubMed 17060851Bohringer D, Spierings E, Enczmann J, Bohringer S, Sundmacher R, Goulmy E, Reinhard T. Matching of the minor histocompatibility antigen HLA-A1/H-Y may improve prognosis in corneal transplantation. Transplantation. 2006 Oct 27;82(8):1037-41. doi: 10.1097/01.tp.0000235908.54766.44.
- Background: PubMed 15051212Reinhard T, Spelsberg H, Henke L, Kontopoulos T, Enczmann J, Wernet P, Berschick P, Sundmacher R, Bohringer D. Long-term results of allogeneic penetrating limbo-keratoplasty in total limbal stem cell deficiency. Ophthalmology. 2004 Apr;111(4):775-82. doi: 10.1016/j.ophtha.2003.07.013.
- Background: PubMed 15004576Reinhard T, Bohringer D, Enczmann J, Kogler G, Mayweg S, Wernet P, Sundmacher R. Improvement of graft prognosis in penetrating normal-risk keratoplasty by HLA class I and II matching. Eye (Lond). 2004 Mar;18(3):269-77. doi: 10.1038/sj.eye.6700636.
- Background: PubMed 14966417Bohringer D, Reinhard T, Duquesnoy RJ, Bohringer S, Enczmann J, Lange P, Claas F, Sundmacher R. Beneficial effect of matching at the HLA-A and -B amino-acid triplet level on rejection-free clear graft survival in penetrating keratoplasty. Transplantation. 2004 Feb 15;77(3):417-21. doi: 10.1097/01.TP.0000110415.10401.94.
- Background: PubMed 14738484Reinhard T, Bohringer D, Enczmann J, Kogler G, Wernet P, Bohringer S, Sundmacher R. HLA class I/II matching and chronic endothelial cell loss in penetrating normal risk keratoplasty. Acta Ophthalmol Scand. 2004 Feb;82(1):13-8. doi: 10.1046/j.1600-0420.2003.00188.x.
- Background: PubMed 12494680Bohringer D, Reinhard T, Enczmann J, Godehard E, Sundmacher R. Individual analysis of expected time on the waiting list for HLA-matched corneal grafts. Dev Ophthalmol. 2003;36:50-5. doi: 10.1159/000067648.
- Derived from this study: PubMed 29735006Bohringer D, Grotejohann B, Ihorst G, Reinshagen H, Spierings E, Reinhard T. Rejection Prophylaxis in Corneal Transplant. Dtsch Arztebl Int. 2018 Apr 13;115(15):259-265. doi: 10.3238/arztebl.2018.0259.
- Derived from this study: PubMed 25496165Bohringer D, Ihorst G, Grotejohann B, Maurer J, Spierings E, Reinhard T; FANCY study group. Functional antigen matching in corneal transplantation: matching for the HLA-A, -B and -DRB1 antigens (FANCY) - study protocol. BMC Ophthalmol. 2014 Dec 13;14:156. doi: 10.1186/1471-2415-14-156.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing HLA Matching and Penetrating keratoplasty in people with Corneal Diseases, run by University Hospital Freiburg at 1 site in Germany.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 25 Oct 2016. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Germany. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Time to first endothelial graft rejection. (time frame: Mostly within the first six months.). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00810472, which also lists 8 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Oct 2016.