Active clinical trials for "Keratoconjunctivitis Sicca"

The goal of this interventional investigation is to compare BUFY02 with TRB02 in the treatment of patients with dry eye disease. The main questions it aims to answer are: Is BUFY02 non-inferior to TRB02 in terms of signs of DED? Is BUFY02 non-inferior to TRB02 in terms of symptoms of DED? Participants will be asked to: Visit the trial site at 4 different timepoints Use the allocated study treatment everyday until the end of the study (during 3 months) Be examined by the investigator Complete several questionnaires Return unused study treatment. Researchers will compare BUFY02 to TRB02 to see if both study treatments provide similar effects on signs and symptoms of the disease, together with comparable safety.

Dry eye syndrome (DES) is a highly prevalent ocular condition with potential severe consequences for affected patients. DES can be either caused by decreased tear production or increased tear evaporation, both leading to an instable tear film. Despite many efforts, generally accepted methodologies to diagnose, assess the severity and monitor DES are still lacking. Moreover, widely used clinical methods such as tear break up time (BUT), fluorescein staining of the cornea or Schirmer test only poorly reflect patients´ complains. One of the main problems in the diagnosis and treatment of DES is that the most critical component - the tear film itself - is difficult to characterize. The development of new ultra-high resolution optical coherence tomography systems allows now for the direct visualization of the human tear film and for the non-invasive in-vivo measurement of tear film thickness (TFT). The investigators could recently show that this system provides excellent reproducibility and is able to assess even subtle changes in TFT induced by therapeutic interventions. However, to which extent tear film thickness is associated with other standard clinical measures of DES is currently unknown. In the present study, the investigators set out to test the hypothesis that ocular TFT is a new and good surrogate parameter for the assessment of the severity of DES. Consequently, the aim of the study presented in this protocol is to investigate whether and if so, to what extent clinical signs of DES and reported symptoms are reflected in ocular TFT. For this purpose, a cross sectional study in healthy subjects and patients with DES will be performed. This should allow the investigators to more specifically characterize the role of the tear film in DES and to assess whether measurement of TFT with OCT can be a promising surrogate parameter for the diagnosis and the follow up of DES.

A Randomized, Controlled, Double-Masked, Two-Arm Investigator-Initiated study to Assess the Efficacy of OC-01 (varenicline) Nasal Spray on signs and symptoms of Dry Eye Disease in subjects following Corneal Collagen Crosslinking (CXL)

Dry eye is the most common reason for visit to an ophthalmologist's office. The prevalence is on the rise and is mainly attributed to factors such as increased environmental pollution and contact lens use. The current management options are limited to over the counter artificial tear drops and three FDA-approved drugs. Of these, cyclosporine has been used worldwide for treating mild to moderate dry eyes. The earlier version consisted of 0.05% cyclosporine which worked well for a limited number of inflammatory dry eye conditions. Recently, 0.09% cyclosporine was approved by the FDA. The nearly double concentration is expected to be more beneficial for severe inflammation which is often seen in Sjögren syndrome and other Rheumatological conditions associated with dry eyes. In this pilot project, the investigator proposes to evaluate the change in expression of SLURP1 and other markers of ocular surface inflammation before and after treatment with 0.09% cyclosporine eye drops.

To demonstrate the non-inferiority of T2769 compared to Vismed® Multi in terms of total ocular surface staining (Oxford score) after 35 days of treatment. To evaluate the performance and safety of T2769 versus Vismed® Multi.

The objective of this study is to evaluate the clinical efficacy of topical spironolactone ophthalmic solution, 0.005 mg/cc in subjects with dry eye disease compared to placebo. The hypothesis for this study is that topical spironolactone ophthalmic solution will be beneficial in the management of signs and symptoms of dry eye disease when compared to placebo.

Determine the effect of a single instillation of NOV03 on the thickness and evaporation rate of the mucus-aqueous layer of the tear film

The primary objectives of this study are the characterization of the ocular microbiome as well as of the local immune system in participants with and without dry eye disease. Secondary objectives are the identification of differences in the ocular microbiome as well as in the immune system between participants with and without dry eye disease to ultimately find associations between the ocular microbiome and the immune system in dry eye disease.

This is a single site, prospective, cross-sectional, controlled clinical study on a total of 66 subjects. The subjects are divided into two groups: Hypertonic Saline Non-Responders (33 subjects) and Hypertonic Saline Responders (33 subjects). After completion of questionnaires, the subjects will undergo Dry Eye Disease testing and functional nerve testing. Subjects who qualify will be dispensed 4 weeks of preservative free artificial tears and instructed to instill one drop into each eye twice daily. Subjects will return for a follow up visit 4 weeks later (± 4 days), during which subjects will complete the questionnaires again and the Dry Eye Disease tests and functional nerve tests will be repeated.

Two methods allow to evaluate tear breakup time (BUT): without prior dye instillation (No Dye BreakUp Time NDBUT) or after fluorescein instilation (FBUT). The interconnections between those two values are unknown