Ignite Creation Date:
2025-12-24 @ 6:51 PM
Ignite Modification Date:
2026-02-20 @ 12:31 PM
Study NCT ID:
NCT04700657
Status:
RECRUITING
Last Update Posted:
2025-10-23
First Post:
2020-11-23
Is NOT Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
The Prevalence of Hypoesthesia Related Keratitis in Ocular Graft Vs. Host Disease (GVHD) Patients
Sponsor:
Indiana University
Organization:
Study Overview
Official Title:
Investigation of the Prevalence of Hypoesthesia Related Neurotrophic Keratitis in Patients With Ocular Graft Versus Host Disease
Status:
RECRUITING
Status Verified Date:
2025-10
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
The Investigators hypothesize that the recalcitrant nature of ocular GVHD may be related to corneal nerve damage and corneal hypoesthesia. The investigators aim to study the prevalence of corneal hypoesthesia in GVHD patients and its correlation with ocular surface changes.
Detailed Description:
Rationale: Graft-versus-host disease(GVHD) is a common complication of allogeneic bone marrow or hematopoietic stem cell transplantation (HSCT). It affects multiple systems, including skin, gastrointestinal system, liver, lung, and oral cavity, as well as eyes, which contributes to decreased quality of life and increased mortality. About 10% of patients with acute GVHD and 60-90% of those with chronic GVHD develop ocular complications. Dry eye is the most common manifestation of ocular GVHD. The pathogenesis remains unclear. The conjunctival tissue and cornea are the main immunological targets in GVHD. Patients often have punctate hypothesize that the recalcitrant nature of ocular GVHD may be related to corneal nerve damage and sensation changes.
There are a few confocal microscopy studies on corneal nerve changes in GVHD, including increased tortuosity and reduced reflectivity of sub-basal nerves. However, there were very few studies on clinical correlations of those microscopic changes with corneal sensation and ocular surface health. In addition, confocal microscopes are not widely available in clinical practice. It also requires the special expertise of technicians and physicians to obtain and explain the images. It is therefore not feasible to routinely perform confocal microscopy for corneal innervation study.
The investigators plan to study the corneal sensation changes and their correlation with ocular surface staining, tear film breakdown and meibomian gland dysfunction in GVHD patients. The study will shed light on an important aspect of corneal innervation damage in GVHD and may lead to new treatment modalities for those patients, noting that topical recombinant human nerve growth factor cenegermin was recently FDA approved for neurotrophic keratopathy. The investigators intend to identify the ocular characteristics of GVHD patients that may potentially benefit from cenegermin treatment.
There are a few confocal microscopy studies on corneal nerve changes in GVHD, including increased tortuosity and reduced reflectivity of sub-basal nerves. However, there were very few studies on clinical correlations of those microscopic changes with corneal sensation and ocular surface health. In addition, confocal microscopes are not widely available in clinical practice. It also requires the special expertise of technicians and physicians to obtain and explain the images. It is therefore not feasible to routinely perform confocal microscopy for corneal innervation study.
The investigators plan to study the corneal sensation changes and their correlation with ocular surface staining, tear film breakdown and meibomian gland dysfunction in GVHD patients. The study will shed light on an important aspect of corneal innervation damage in GVHD and may lead to new treatment modalities for those patients, noting that topical recombinant human nerve growth factor cenegermin was recently FDA approved for neurotrophic keratopathy. The investigators intend to identify the ocular characteristics of GVHD patients that may potentially benefit from cenegermin treatment.
Study Oversight
Has Oversight DMC:
False
Is a FDA Regulated Drug?:
False
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
False
Is an FDA AA801 Violation?: