Identifying biomarkers for microbial keratitis

Microbial Keratitis Sampling for Biomarker Discovery

Observational University of Edinburgh · NCT05888883

This study is trying to find specific markers in tears and eye samples from people with microbial keratitis to help improve how we diagnose and treat this serious eye infection.

Quick facts

Study typeObservational
Enrollment70 (estimated)
Ages16 Years and up
SexAll
SponsorUniversity of Edinburgh Academic / other
Locations1 site (Edinburgh, Scotland)
Trial IDNCT05888883 on ClinicalTrials.gov

What this trial studies

This observational study aims to discover prognostic and diagnostic biomarkers related to microbial keratitis by analyzing tear and ocular swab samples from affected patients and healthy controls. The study will focus on understanding the ocular microenvironment and the microorganisms present in patients with microbial keratitis. Participants will have their tears collected and conjunctival swabs taken during their treatment course to facilitate this analysis. The ultimate goal is to improve diagnostics and treatment strategies for this serious eye condition.

Who should consider this trial

Good fit: Ideal candidates include individuals aged 16 and older with a new infective keratitis in one eye.

Not a fit: Patients with suspected viral infections or those presenting with keratitis in both eyes may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to better diagnostic tools and treatment options for patients suffering from microbial keratitis.

How similar studies have performed: While the approach of studying biomarkers in microbial keratitis is innovative, similar studies in other infectious conditions have shown promise in identifying critical diagnostic markers.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* 16 years old or older.
* Able to provide informed consent for themselves.
* Patient group: Appearances typical of a new infective keratitis of the cornea, in one eye only.
* Control group: healthy volunteers with no recent history (within 1 year) of MK or inflammatory eye condition.

Exclusion Criteria:

* \<16 years old.
* Not able to provide consent for themselves.
* Patients with suspected viral rather than bacterial/fungal corneal infection, such as herpetic keratitis.
* Patients who present with MK in both eyes.
* Control group: Individuals receiving topical steroid or antimicrobial therapy to the eye, or any other form of systemic immunosuppression/antimicrobial drug.

Where this trial is running

Edinburgh, Scotland

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Microbial Keratitis
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.