The Prevalence of Hypoesthesia Related Keratitis in Ocular Graft Vs. Host Disease (GVHD) Patients

Last updated: September 20, 2024
Sponsor: Indiana University
Overall Status: Active - Recruiting

Phase

N/A

Condition

Eye Disorders/infections

Treatment

corneal sensation test

Clinical Study ID

NCT04700657
2004207079
  • Ages > 18
  • All Genders
  • Accepts Healthy Volunteers

Study 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.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • Chronic GVHD is diagnosed based on the history of allogeneic HSCT (Hematopoieticstem cell transplant) and the presence of systemic GVHD in organs other than theeye. In the ocular GVHD group, dry eye symptoms start after the development ofsystemic GVHD. If post-HSCT dry eye precedes GVHD clinical signs in other organs,the investigators will use the 2013 diagnostic criteria by International chronicocular GVHD consensus group.

  • The investigators will recruit patients for the study. The investigators plan toinclude ocular GVHD patients that are of age 18 years or older who have typicalsymptoms of dry eye with an Ocular Surface Disease Index (OSDI) score greater than 13 and corneal fluorescein staining (CFS) score of 3 or more (National Eye Institute [NEI] grading scale, 0-15). Normal age-matched volunteer group will include peoplewhose OSDI less or equal to 13 and CFS score less than 3.

The patients will continue their current systemic and ocular medications, which may include one or combination of preservative free artificial tears, restasis or xiidra, serum tears, ointment, or scleral contact lens.

Exclusion

Exclusion Criteria:

  • patients with a history of herpetic simplex or zoster keratitis, ocular orneurologic surgery (including laser or refractive surgical procedure) within 3months before enrollment, trauma, diabetes with signs of peripheral neuropathy.

  • patients with active corneal thinning or infection.

Study Design

Total Participants: 30
Treatment Group(s): 1
Primary Treatment: corneal sensation test
Phase:
Study Start date:
December 17, 2020
Estimated Completion Date:
December 31, 2026

Study 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.

Connect with a study center

  • Glick Eye Institute - Indiana University

    Indianapolis, Indiana 46202
    United States

    Active - Recruiting

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