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A Study on the Effect of Changing From Preserved Prostaglandin Formulations to Preservative Free Tafluprost on Tear Film Thickness

Ocular Hypertension Clinical Trial

Official title:
An Open, Non-randomized Study on the Effect of Changing From Preserved Prostaglandin Formulations to Preservative Free Tafluprost (Saflutan® Augentropfen) in Patients With Ocular Hypertension or Primary Open Angle Glaucoma on Tear Film Thickness

Clinical Trial Summary

Studies have shown that ocular surface disease (OSD) is common among patients with glaucoma with a prevalence of 50% or more. The percentage of affected patients appears to increase with increasing number of topical anti-glaucoma products instilled. Both pre-clinical and clinical work has indicated that the preservatives used in anti-glaucoma drops, particularly benzalkonium chloride, are mainly responsible for this detrimental effect. As such more and more anti-glaucoma drugs without preservatives entered the market.

To prove that switching from preserved to unpreserved antiglaucoma medication improves the signs and symptom of OSD is, however, not easy. This is on the one hand related to the physiological variability of these parameters over time and on the other hand to the poor association between signs and symptoms. Recently, a new method for measuring tear film thickness (TFT) using ultra-high resolution optical coherence tomography (OCT) has been introduced. Using this method, it has been shown that there is a correlation between reduced TFT and OSD symptoms. In the present study, it is hypothesized that changing patients who are on preserved prostaglandin formulations to preservative free tafluprost may be associated with an increase in TFT.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03204487
Study type Interventional
Source Ordination Dr. Hommer
Contact
Status Completed
Phase Phase 4
Start date May 10, 2016
Completion date June 30, 2017
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