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CHARACTERIZATION OF THE OCULAR SURFACE MICROBIOME IN THE REGION OF EPIRUS AND MACEDONIA (GREECE)

CHARACTERIZATION OF THE OCULAR SURFACE MICROBIOME IN THE REGION OF EPIRUS AND MACEDONIA (GREECE)

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07643077
Enrollment
45
Registered
2026-06-11
Start date
2024-03-20
Completion date
2026-08-01
Last updated
2026-06-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Glaucoma

Brief summary

The effect of latanoprost with preservatives on the ocular surface microbiome

Detailed description

Evidence suggests that the ocular surface microbiome of patients using preserved glaucoma eye drops differs from that of healthy individuals. These microbial changes have been linked to both the glaucoma treatment itself and the presence of preservatives, particularly benzalkonium chloride (BAK), in the eye drops. However, existing studies have primarily assessed these differences by comparing treated glaucoma patients to healthy controls, rather than examining changes within the same individuals over time. The aim of this study is to evaluate how glaucoma medications containing the preservative benzalkonium chloride affect the ocular surface microbiome in the same patients before and after the initiation of therapy.

Interventions

DRUGLatanoprost with preservatives (BAK) once per day for at least 6 months period

Existing studies have primarily assessed these differences by comparing treated glaucoma patients to healthy controls, rather than examining changes within the same individuals over time.

Sponsors

University of Ioannina
Lead SponsorOTHER

Study design

Observational model
CASE_ONLY
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

Newly diagnosed treatment naive glaucoma patients or those with ocular hypertension

Exclusion criteria

* Patients' history of recent ocular surgery or trauma, * Patient with any type of conjunctivitis and ocular surface inflammation recent to the time of diagnosis * Patients using topical antibiotics * Contact lenses wearers * Patients in other chronic treatments with eye drops

Design outcomes

Primary

MeasureTime frameDescription
Change in ocular microbiome6 monthsAlpha and beta diversity before and at least 6 months after the treatment

Countries

Greece

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 12, 2026