Clinical trials: Cornea
Corneal Edema Secondary to Corneal Endothelial Dystrophy
Early Experience With Descemet's Stripping Automated Endothelial Keratoplasty
The purpose of this study is to report the early clinical outcomes in patients undergoing Descemet's Stripping Automated Endothelial Keratoplasty (DSAEK) for corneal edema secondary to corneal endothelial cell dysfunction, and to…
- Trial name
- DSAEK (NCT00744796)
- Testing
- DSAEK, Anterior Segment Optical Coherence Topography (OCT), Best Spectacle Corrected Visual Acuity (BSCVA)
- Where
- United States
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- University of Texas Southwestern Medical Center
Diabetic Peripheral Neuropathy
Corneal Nerves Function and Structure
Peripheral neuropathy affects about 50% of the diabetic population and there is no treatment other than good blood glucose control, which is ineffective in subjects with type 2 diabetes.
- Trial name
- NCT04222660
- Testing
- Blackmores Omega Daily (4 1g capsules per day)
- Where
- United States
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development
Trachoma, Chlamydia Trachomatis
Impact of Two Alternative Dosing Strategies for Trachoma Control in Niger
Trachoma is a disease of poverty, which in the hyperendemic areas affects all individuals by the time they are two years old. Active disease is concentrated in children and occurs sporadically in adults.
- Trial name
- NCT00618449
- Testing
- Azithromcyin, Azithromycin
- Where
- 2 sites in United States, Niger
- Volunteers
- 1,139 people, healthy volunteers welcome
- Sponsor
- University of California, San Francisco
Keratitis
Study of the Presence and Extent of Corneal Disturbance Associated With B+L Biotrue MPS Used With B+L PureVision Lenses
Corneal epithelial disruption, commonly termed "corneal staining" has been frequently associated with contact lens wear. Previous research has demonstrated higher levels of observed corneal staining when certain combinations of…
- Trial name
- NCT01268306
- Testing
- B+L Biotrue MPS and B+L PureVision
- Where
- United States
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- Epstein, Arthur B., OD, FAAO
Normal Contact Lens Wear
Two Phase Clinical Study of the Impact of Contact Lenses and Solutions on Corneal Structure
Assess the usefulness of using confocal microscopy to examine changes to the structure of the cornea and to identify any potential consequences of contact lens wear and/or solution use.
- Trial name
- NCT00804999
- Testing
- Clear Care, ReNu, OPTI-FREE
- Where
- United States
- Volunteers
- 51 people, healthy volunteers welcome
- Sponsor
- Christine Sindt
Acanthamoeba Keratitis
Safety and Tolerability of Preservative-free Polyhexamethylene Biguanide (PHMB) Ophthalmic Solution in Healthy Subjects
Randomized, double-masked, placebo-controlled, multiple center, parallel-group Phase 1 study to evaluate the safety and tolerability of 3 doses of preservative-free PHMB ophthalmic solution compared to placebo in healthy subjects
- Trial name
- NCT02506257
- Testing
- 0.04% PHMB, 0.06% PHMB, 0.08% PHMB
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- SIFI SpA
Trachoma
A Surveillance and Azithromycin Treatment for Newcomers and Travelers Evaluation: The ASANTE Trial
Infection with C. Trachomatis has decreased substantially in trachoma endemic areas following repeated annual mass drug administration (MDA) with azithromycin, although not as rapidly as anticipated.
- Trial name
- ASANTE (NCT01767506)
- Testing
- Surveillance and treatment with azithromycin of newcomer and traveler families, Usual care
- Where
- United States
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins University
Trachoma
Azithromycin Reduction to Reach Elimination of Trachoma
The investigators propose a randomized controlled trial of discontinuation versus continuation of annual mass azithromycin distribution in hypoendemic communities of Maradi, Niger.
- Trial name
- ARRET (NCT04185402)
- Testing
- Azithromycin
- Where
- Niger
- Volunteers
- 3,931 people, healthy volunteers welcome
- Sponsor
- University of California, San Francisco
Keratoconjunctivitis Sicca
Tear Film Break-up Time After Instillation of Artificial Tears
This study is an exploratory trial evaluating the tear film break-up time after a single eye drop instillation of over-the-counter artificial tears.
- Trial name
- NCT00681265
- Testing
- glycerin, polyethylene glycol 400/propylene glycol
- Where
- United States
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Calm Water Therapeutics LLC
Keratoconjunctivitis Sicca
TearLab Core Validation Study to Establish Referent Values for Dry Eye Disease
This is a prospective, observational case series to determine the clinical utility of tear osmolarity and other commonly used objective tests to diagnose dry eye disease, as well as to establish referent values for objective…
- Trial name
- CVS (NCT00848198)
- Where
- 10 sites in United States, France and 3 more
- Volunteers
- 314 people, healthy volunteers welcome
- Sponsor
- TearLab Corporation
Dry Eye Syndromes
The Effects of BAK on the Blood Aqueous Barrier of Pseudophakic Patients
BAK is one of the most frequent preservatives in eye drops. BAK is a quaternary ammonium salt with surfactant qualities. It can be bacteriostatic or bactericidal depending on the concentrations used.
- Trial name
- NCT01280110
- Testing
- Hydroxypropylmethylcellulose, Carboxymethylcellulose
- Where
- Brazil
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- University of Campinas, Brazil
Trachoma
Safety and Immunogenicity of a Chlamydia Vaccine CTH522
CHLM-02 was a phase I, double-blind, randomized, placebo-controlled trial of the chlamydia vaccine CTH522. 65 trial participants were randomized into 12 groups and six cohorts (A1 to F2).
- Trial name
- CHLM-02 (NCT03926728)
- Testing
- CTH522-CAF01 IM, CTH522-CAF09b IM, CTH522 ID
- Where
- United Kingdom
- Volunteers
- 65 people, healthy volunteers welcome
- Sponsor
- Statens Serum Institut
Glaucoma, Retinal Disease
Agreement and Precision Study of the Nidek Mirante
This study is a prospective comparative, randomized, single center study to gather agreement and precision of the Nidek Mirante OCT with SLO and Anterior Segment Imaging capabilities in comparison to the Optovue RTVue XR Avanti…
- Conditions
- Glaucoma, Retinal Disease, Corneal Disease
- Trial name
- NCT04318132
- Testing
- Nidek Mirante, Optovue RTVue XR Avanti, Optos P200DTx
- Where
- United States
- Volunteers
- 170 people, healthy volunteers welcome
- Sponsor
- Nidek Co. LTD.
Child Development
Antibiotic Resistance and Microbiome in Children Aged 6-59 Months in Nouna, Burkina Faso
The use of antibiotics has saved millions of human lives, however consumption of antibiotics can select for antibiotic resistant organisms and may lead to changes in commensal microbiome.
- Trial name
- ARMCA (NCT03187834)
- Testing
- Azithromycin, Amoxicillin, Cotrimoxazole
- Where
- 2 sites in United States, Burkina Faso
- Volunteers
- 252 people, healthy volunteers welcome
- Sponsor
- University of California, San Francisco
Myopia, Hyperopia
Safety and Efficacy Study of Topography-Guided LASIK to Treat Myopia and Hyperopia
This purpose of this study is to evaluate the safety and effectiveness of a topography-based custom ablation treatment using the ALLEGRETTO WAVE® Eye-Q 400 Hz laser system for treating myopia and hyperopia.
- Trial name
- NCT01028378
- Testing
- T-CAT topography-guided LASIK treatment with the Allegretto Wave Eye-Q 400 Hz Excimer Laser
- Where
- 10 sites in United States
- Volunteers
- 212 people, healthy volunteers welcome
- Sponsor
- Clinical Research Consultants, Inc.
Glaucoma, Endothelial Cell Loss, Corneal
Changes in Corneal Endothelial Cell Density After Transscleral ab Interno Glaucoma Gel Stent Implantation
The objective of this study is to evaluate the change of endothelial cell count after XEN45 in patients with or without cataract operation.
- Trial name
- NCT04547036
- Testing
- XEN45
- Where
- Austria
- Volunteers
- 129 people, healthy volunteers welcome
- Sponsor
- Paracelsus Medical University
Keratoconjunctivitis Sicca, Dry Eye Syndrome
Effects of Dry Eye Treatments on the Ocular Surface
The purpose of this study is to evaluate whether, in people with dry eye syndrome, over the counter artificial tears and the prescription eye drop, dexamethasone, change or effect the eyes response to a low humidity environment.
- Trial name
- NCT01797822
- Testing
- Dexamethasone, Artificial tear
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Baylor College of Medicine
Keratoconus, Ocular Surface Disease
Pilot Study to Investigate the Feasibility, Reliability and Efficacy of Utilizing OCT to Automate PROSE Fitting
EYEdeal Scanning Technology enables rapid measurement of corneal and scleral topography. By accurately measuring the ocular surface with this imaging technology, the current iterative fitting method required to fit PROSE…
- Conditions
- Keratoconus, Ocular Surface Disease, Pellucid Marginal Corneal Degeneration, Ectasia
- Trial name
- NCT04649177
- Testing
- Ocular surface optical coherence tomography
- Where
- United States
- Volunteers
- 11 people, healthy volunteers welcome
- Sponsor
- Boston Sight
Keratoconus, Dry Eye
Safety and Efficacy of Intracanalicular Dexamethasone Compared to Loteprednol Etabonate in Patients With Keratoconus
Drug delivery platforms are an innovative exciting advancement in ophthalmology. They allow patients to eliminate topical medications which are generally associated with lack of compliance, difficulty of use and requiring help…
- Conditions
- Keratoconus, Dry Eye, Allergy
- Trial name
- NCT04418999
- Testing
- dexamethasone ophthalmic insert 0.4 mg, for intracanalicular use, Loteprednol Etabonate 0.38% Ophthalmic Gel/Jelly
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Illinois College of Optometry
Trachoma
Partnership for Rapid Elimination of Trachoma
Trachoma, an ocular infection caused by C. trachomatis, is the second leading infectious cause of blindness worldwide. Years of repeated infection with C.
- Trial name
- PRET (NCT00792922)
- Testing
- Azithromycin
- Where
- 3 sites in United States, United Kingdom
- Volunteers
- 128 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins University