NCT06281587

Brief Summary

There are many predictors that may influence the development of corneal graft rejection after penetrating keratoplasty. In our study investigators analysed the results of keratoplasty and the risk factors for graft rejection. Investigators analysed data from 493 patients who underwent penetrating keratoplasty between 2011 and 2019. Keratoplasty outcomes were followed up at subsequent clinic visits until December 2021. Then, 93 medical records were selected (taking into account the completeness of the medical records) and divided into two groups based on the primary diagnosis that was an indication for keratoplasty: high-risk and low-risk patients. Investigators then estimated the survival time (clear graft) of the corneal graft using Kaplan-Meier statistical survival analysis. Investigators also investigated the factors that influence corneal graft opacity.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
93

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jan 2011

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2011

Completed
8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2019

Completed
5.1 years until next milestone

First Submitted

Initial submission to the registry

January 31, 2024

Completed
28 days until next milestone

First Posted

Study publicly available on registry

February 28, 2024

Completed
Last Updated

February 28, 2024

Status Verified

February 1, 2024

Enrollment Period

8 years

First QC Date

January 31, 2024

Last Update Submit

February 24, 2024

Conditions

Keywords

penetrating keratoplastycorneal graft rejectioncorneal opacityrisk factors

Outcome Measures

Primary Outcomes (1)

  • Cohort group Kaplan-Meier survival analysis (clear graft engraftment)

    Investigators used Kaplan-Meier survival analysis to evaluate the survival (clear graft) of the corneal graft in this cohort.

    2011-2019

Study Arms (2)

Group 1 - low-risk (LR) keratoplasty

if the patient was diagnosed with keratoconus and there were no concomitant complicating diagnoses (n = 42)

Procedure: penetrating keratoplasty

Group 2 - high-risk (HR) keratoplasty

in the presence of corneal dystrophy (pseudophakic bullous keratopathy, primary dystrophy), corneal inflammatory pathology (erosions, corneal ulcers, corneal fistulas,leucoma), complicated keratoconus, CGR or rekeratoplasty (n = 51)

Procedure: penetrating keratoplasty

Interventions

replacement of the affected tissue with healthy donor tissue in diseases that disrupt the shape or transparency of the cornea.

Group 1 - low-risk (LR) keratoplastyGroup 2 - high-risk (HR) keratoplasty

Eligibility Criteria

Age13 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

corneal inflammatory pathology (erosions, corneal ulcers, corneal fistulas,leucoma), complicated keratoconus, CGR or rekeratoplasty

You may qualify if:

  • completeness of data and records

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Unknown Facility

Krasnodar, 350012, Russia

Location

Related Publications (9)

  • Inoue K, Tsuru T. ABO antigen blood-group compatibility and allograft rejection in corneal transplantation. Acta Ophthalmol Scand. 1999 Oct;77(5):495-9. doi: 10.1034/j.1600-0420.1999.770501.x.

  • Di Zazzo A, Kheirkhah A, Abud TB, Goyal S, Dana R. Management of high-risk corneal transplantation. Surv Ophthalmol. 2017 Nov-Dec;62(6):816-827. doi: 10.1016/j.survophthal.2016.12.010. Epub 2016 Dec 22.

  • Guilbert E, Laroche L, Borderie V. [Rejection of corneal allografts]. J Fr Ophtalmol. 2011 May;34(5):331-48. doi: 10.1016/j.jfo.2011.02.001. Epub 2011 Apr 14. French.

  • Hopkinson CL, Romano V, Kaye RA, Steger B, Stewart RM, Tsagkataki M, Jones MN, Larkin DF, Kaye SB; National Health Service Blood Transplant Ocular Tissue Advisory Group and Contributing Ophthalmologists (OTAG Study 20). The Influence of Donor and Recipient Gender Incompatibility on Corneal Transplant Rejection and Failure. Am J Transplant. 2017 Jan;17(1):210-217. doi: 10.1111/ajt.13926. Epub 2016 Jul 22.

  • Simon M, Fellner P, El-Shabrawi Y, Ardjomand N. Influence of donor storage time on corneal allograft survival. Ophthalmology. 2004 Aug;111(8):1534-8. doi: 10.1016/j.ophtha.2003.12.060.

  • Writing Committee for the Cornea Donor Study Research Group; Sugar A, Gal RL, Kollman C, Raghinaru D, Dontchev M, Croasdale CR, Feder RS, Holland EJ, Lass JH, Macy JI, Mannis MJ, Smith PW, Soukiasian SH, Beck RW. Factors associated with corneal graft survival in the cornea donor study. JAMA Ophthalmol. 2015 Mar;133(3):246-54. doi: 10.1001/jamaophthalmol.2014.3923.

  • Armitage WJ, Goodchild C, Griffin MD, Gunn DJ, Hjortdal J, Lohan P, Murphy CC, Pleyer U, Ritter T, Tole DM, Vabres B. High-risk Corneal Transplantation: Recent Developments and Future Possibilities. Transplantation. 2019 Dec;103(12):2468-2478. doi: 10.1097/TP.0000000000002938.

  • Yamaguchi T, Higa K, Tsubota K, Shimazaki J. Elevation of preoperative recipient aqueous cytokine levels in eyes with primary graft failure after corneal transplantation. Mol Vis. 2018 Sep 13;24:613-620. eCollection 2018.

  • Siebelmann S, Ramos SL, Matthaei M, Scholz P, Schrittenlocher S, Heindl LM, Bachmann B, Cursiefen C. Factors Associated With Early Graft Detachment in Primary Descemet Membrane Endothelial Keratoplasty. Am J Ophthalmol. 2018 Aug;192:249-250. doi: 10.1016/j.ajo.2018.05.010. Epub 2018 May 29. No abstract available.

MeSH Terms

Conditions

Corneal Opacity

Interventions

Keratoplasty, Penetrating

Condition Hierarchy (Ancestors)

Corneal DiseasesEye Diseases

Intervention Hierarchy (Ancestors)

Corneal TransplantationTissue TransplantationCell- and Tissue-Based TherapyBiological TherapyTherapeuticsRefractive Surgical ProceduresOphthalmologic Surgical ProceduresSurgical Procedures, OperativeTransplantation

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER GOV
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Head of the Department

Study Record Dates

First Submitted

January 31, 2024

First Posted

February 28, 2024

Study Start

January 1, 2011

Primary Completion

January 1, 2019

Study Completion

January 1, 2019

Last Updated

February 28, 2024

Record last verified: 2024-02

Data Sharing

IPD Sharing
Will not share

It is not yet known if there will be a plan to make the iPad available.

Locations