Active clinical trials for "Dry Eye Syndromes"

Cordyceps cicadae mycelia was tested for amelioration of dry eye symptoms through dietary supplementation. Its efficacy in relief of human dry eye status was assessed by randomized, double-blinded tests, including multiple assessments. The results were compared between the placebo group and the experimental group.

In the elderly population, dry eye syndrome is a highly prevalent ocular disease. One mainstay of therapy for patients suffering from dry eye syndrome is the use of topically administered lubricants. One of the main disadvantages of the formulations currently available for the treatment of DES is the short residency time on the ocular surface, which increases the need for a frequent instillation of the lubricant. Recently, Croma Pharma has introduced chitosan-N-acetylcysteine eye drops, designed for treatment of symptoms related to DES. Based on theoretical considerations and animal experiments, the new chitosan derivative may show an increased adhesion to mucins of the ocular surface and may therefore considerably increase the residence on the ocular surface. This, in turn, would limit the need for frequent treatment and decrease the burden for the patients. It has been shown in recent Phase I studies that chitosan-N-acetylcysteine eye drops are safe and well tolerated after single and repeated instillation. The current study seeks to investigate the ocular residency time after a single dose and after 5 day b.i.d. treatment. For this purpose 2 cohorts are planned: In Cohort I, chitosan-N-acetylcysteine eye drops will be instilled once in one randomly chosen eye, whereas the fellow eye will receive placebo. Measurements of tear film thickness will be performed with optical coherence tomography (OCT) before instillation and 10 minutes, 1 hour, 2 hours, 4 hours, 8 hours, 10 hours, 12 hours and 24 hours after instillation. In addition, ocular scattering of the tear film will be assessed with an Optical Quality Analysis System (OQAS) at the same timepoints. Determination of break up time (BUT) will be performed before and after instillation of the eye drops. In Cohort II, chitosan-N-acetylcysteine eye drops will be instilled once daily in one eye and b.i.d. in the fellow eye on five consecutive days. Measurements of tear film thickness with OCT and OQAS will be performed every study day before the morning instillation and the day after the last instillation. Additionally, patients will be asked to answer the ocular surface disease index (OSDI©) on day 1 and day 6. BUT will be determined before and after instillation of the eye drops.

Dry eye syndrome (DES) is a common ocular disease, especially in the elderly population. Despite many treatment approaches, instillation of topical lubricants remains the mainstay of therapy. However, most of the topical lubricants available are not very well characterized and data about efficacy is sparse. The aim of the present project is to investigate the effect of topically administered Olixia pure® eye drops on tear film thickness in healthy subjects. Tear film thickness will be determined using ultra high-resolution optical coherence tomography (OCT). Measurements will be performed before instillation of the eye drops and every 10 minutes after instillation for one hour. One eye will receive Olixia pure® eye drops, the fellow eye will receive physiologic saline solution as placebo control. The study eye will be chosen randomly.

Dry eye clinical research is limited to follow up of disease progression. While a large catalogue of tests, such as corneal staining grading, tear break up time (TBUT) and Schirmer's test, is available, objective assessments demonstrate poor to moderate repeatability. Among these assessments, TBUT has the best repeatability while the Schirmer's test shows good repeatability for more severe forms of the disease.1 As such, currently, most research outcomes are based on subjective patient complaints rather than objective assessment of the condition. LipiView Ocular Surface Interferometer (LipiView) is a HSA-approved imaging device that has the ability to assess optical interference pattern produced by light reflected off the tear film in a safe and non-invasive manner.2 Software analysis of the image then measures the tear LLT, which is used to objectively quantify the diagnosis of lipid-deficient dry eye. This current study aims to investigative the inter and intra-examiner reproducibility of measuring tear lipid layer thickness (LLT) with LipiView, which is used in our current clinical setting. LipiView has not been evaluated on its reproducibility of measuring tear lipid layer thickness. The study will also assess for correlation between the magnitude of tear LLT and the inter and intra-examiner reproducibility of LipiView. Once this method is found to be repeatable, this can be used in future clinical settings and trials as an additional tool to investigate dry eye treatments.

Dry eye syndrome is a highly prevalent ocular disease with an increasing incidence in the elderly population. Topically administered lubricants are the basis for treatment of this disease. Relief of symptoms in patients with moderate to severe dry eye disease is usually reached by the use of artificial tears during the day. Nighttime relief is often achieved by substances known to be more adhesive to the ocular surface, such as gels.

The purpose of this study is to evaluate the clinical efficacy and safety of 10-weeks oral consumption of Zanthoxylum schinifolium seed Oil (ZSO) in patients with mild dry eye disease.

Individuals with dry eye tend to present with ocular pain which persists despite the use of topical treatment. This could be secondary to somatosensory impairment attributable to neuropathic pain. The purpose of this study is to evaluate the effect of trigeminal nerve stimulation (TNS) on corneal nerves and chronic ocular pain in patients with dry eye.

This study was designed to compare patient acceptance, comfort, and preference between two meibomian gland clearing devices (Lipiflow vs, iLux). Primary Objective was to compare patient comfort as assessed by Likert-style scale questionnaire following each bilateral procedure. Secondary Objective was to compare overall experience and treatment preference as assessed by Likert-style questionnaire following each bilateral procedure. Both devices are exempt from IDE regulations [21 CFR 812.2(c)].

This study is to evaluate the safety of a new preservative in a lubricant eye drop used four times a day in healthy adults and subjects diagnosed with dry eye.

This study will evaluate the safety, tolerability and pharmacokinetics of two formulations of cyclosporine ophthalmic emulsion in healthy adults (parallel-group phase). The parallel-group phase will be followed by a paired-eye phase which will evaluate the safety and tolerability of two formulations of cyclosporine ophthalmic emulsion compared with cyclosporine ophthalmic emulsion (RESTASIS®) in patients with dry eye.