Clinical trials: Cornea; Ectasia
Corneal Ectasia
Safety and Efficacy Study for Corneal Collagen Cross-Linking in Eyes With Corneal Ectasia After Refractive Surgery
The objectives of this study are to evaluate the safety and efficacy of corneal collagen cross-linking performed with VibeX (riboflavin ophthalmic solution) and the KXL System as compared to placebo in impeding the progression…
- Trial name
- NCT01643252
- Testing
- riboflavin: 0.12% riboflavin ophthalmic solution with the KXL system
- Sponsor
- Glaukos Corporation
Keratoconus, Corneal Ectasia
Corneal Collagen Crosslinking for Keratoconus and Ectasia Using Riboflavin/Dextran or Riboflavin/Methylcellulose
This study is being conducted to evaluate the safety and efficacy of isotonic riboflavin for corneal collagen crosslinking for keratoconus and corneal ectasia.
- Trial name
- CXL (NCT04897503)
- Testing
- Riboflavin
- Where
- United States
- Volunteers
- 170 people, healthy volunteers welcome
- Sponsor
- Cornea and Laser Eye Institute
Keratoconus, Corneal Ectasia
Transepithelial (Epi-on) Corneal Collagen Crosslinking to Treat Keratoconus and Corneal Ectasia
Corneal collagen crosslinking (CXL) has been demonstrated as an effective method of reducing progression of both keratoconus and corneal ectasia after surgery, as well as possibly decreasing the steepness of the cornea in these…
- Trial name
- NCT04905108
- Testing
- Riboflavin
- Where
- United States
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- Cornea and Laser Eye Institute
Keratoconus, Pellucid Marginal Degeneration
T-Cat Laser & Cross-linking for Keratoconus
The purpose of this study is to determine whether excimer laser corneal surface ablation (T-Cat) can be safely combined with simultaneous corneal collagen cross-linking treatment to produce an improved and stable corneal profile…
- Trial name
- T-Cat (NCT00777322)
- Testing
- Excimer laser ablation, and collagen cross-linking
- Where
- United Kingdom
- Volunteers
- 15 people
- Sponsor
- Moorfields Eye Hospital NHS Foundation Trust
Corneal Ectasia
Riboflavin-UVA Induced Collagen Crosslinking Treatment for Corneal Ectasia
This is a hospital-based interventional prospective study. Patients with clinical keratoconus or LASIK keratectasia presenting to the Singapore National Eye Centre who meet the eligibility criteria are recruited for this study.
- Trial name
- NCT01123057
- Testing
- riboflavin-induced collagen cross-linking treatment, Riboflavin-UVA induced collagen cross-linking treatment for corneal ectasia
- Where
- Singapore
- Volunteers
- 30 people
- Sponsor
- Singapore National Eye Centre
Corneal Ectasia
Corneal Topographic Changes in Different Grades of OSA
Corneal topographic parameters in different degrees of obstructive sleep apnea
- Trial name
- NCT06347900
- Testing
- Pentacam (corneal topographic changes detection), Polysymnography
- Where
- Egypt
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Sohag University
Corneal Ectasia
Refractive and Corneal Topographic Characteristics in Upper Egypt Children With High Cylinder
Refractive and Corneal Topographic Characteristics in upper Egypt children with high cylinder: A cross sectional study
- Trial name
- NCT06348368
- Testing
- Pentacam and autorefractometry
- Where
- Egypt
- Volunteers
- 4,000 people
- Sponsor
- Sohag University
Keratoconus, Pellucid Marginal Corneal Degeneration
Safety & Effectiveness of the PXL-Platinum 330 System for CXL Using Riboflavin Solution
Safety and Effectiveness of the PXL-Platinum 330 System for Corneal Collagen Cross-linking in Eyes With Corneal Thinning Conditions
- Conditions
- Keratoconus, Pellucid Marginal Corneal Degeneration, Corneal Degeneration, Corneal Ectasia
- Trial name
- NCT04667572
- Testing
- PXL-330 Platinum device for crosslinking with Peschke riboflavin solution
- Where
- United States
- Volunteers
- 249 people, healthy volunteers welcome
- Sponsor
- Cornea Associates of Texas
Keratoconus
Photorefractive Keratectomy and Corneal Cross-linking in Keratoconus
Evaluation of the safety and efficacy of surface ablation followed by Collagen Cross-linking in patients with keratoconus
- Trial name
- NCT02189447
- Testing
- Simultaneous Photorefractive Keratectomy and Collagen Cross-linking in patients with keratoconus
- Volunteers
- 44 people
- Sponsor
- The Eye Center and The Eye Foundation for Research in Ophthalmology
Corneal Ectasia
Observational Registry to Assess the Durability of Effect of CXL in Patients With Corneal Ectasia After Refractive Surgery
The objectives of this post market registry are to evaluate the safety and durability of treatment effect up to 3 years following cross-linking performed with Photrexa Viscous (riboflavin 5'- phosphate in 20% dextran ophthalmic…
- Trial name
- CXL (NCT03319082)
- Testing
- Corneal Collagen Cross-linking
- Where
- 11 sites in United States
- Volunteers
- 200 people
- Sponsor
- Glaukos Corporation
Keratoconus, Corneal Ectasia
Safety and Preliminary Efficacy of IVMED-80 Eye Drops in Keratoconus Patients
We investigated the use of a copper sulfate eye drop (IVMED-80) for the treatment of keratoconus. Preliminary laboratory data shows that the addition of copper sulfate increase crosslinking of the structural proteins of the…
- Trial name
- NCT05241145
- Testing
- IVMED-80
- Where
- Mexico
- Volunteers
- 38 people
- Sponsor
- iVeena Delivery Systems, Inc.
Keratoconus, Ectasia
Collagen Crosslinking With Ultraviolet-A in Asymmetric Corneas (2)
To evaluate the efficacy of ultraviolet-A (UVA)-induced cross-linking of corneal collagen (CXL) as a method to increase the biomechanical and biochemical stability of the cornea by inducing additional cross-links within or…
- Conditions
- Keratoconus, Ectasia, Degeneration
- Trial name
- NCT01097447
- Where
- 5 sites in United States
- Volunteers
- 2,619 people
- Sponsor
- Cxlusa
Corneal Ectasia
Evaluating Risk Factors of Post-LASIK Ectasia
Ectasia after refractive surgery is a relatively rare complication which can lead to sight-threatening complications if not detected and treated in time.
- Trial name
- NCT03708575
- Volunteers
- 25 people
- Sponsor
- Assiut University
Corneal Ectasia, Corneal Disease
Dresden Corneal Disease and Treatment Study
The purpose of this study is long-term follow up of patients with corneal diseases to analyze the quality of surgical interventions and diagnosis.
- Conditions
- Corneal Ectasia, Corneal Disease, Corneal Astigmatism, Keratoconus
- Trial name
- NCT04251143
- Testing
- corneal cross-linking, corneal topography and tomography
- Where
- Germany
- Volunteers
- 700 people
- Sponsor
- Technische Universität Dresden
Keratoconus
INTACS (Intrastromal Corneal Ring Segments) For Corneal Ectasia
To join established study put on by Addition Technologies, Inc. in the surgical implantation of asymmetrical INTACS segments to treat myopia and astigmatism in patients with keratoconus.
- Trial name
- INTACS (NCT02512432)
- Testing
- INTACS
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- University of California, San Diego
Keratoconus
PRoTECT: Corneal Wavefront Guided PRK + Epi-off CXL vs. PTK+Epi-off CXL in Keratoconus
Keratoconus causes irregular astigmatism and reduced vision. Epi-off corneal crosslinking (CXL) stabilizes the cornea but often leaves higher-order aberrations uncorrected.
- Trial name
- PRoTECT (NCT07372911)
- Testing
- Schwind AMARIS excimer laser, Corneal collagen crosslinking epi-off accelerated
- Where
- Mexico
- Volunteers
- 50 people
- Sponsor
- Instituto de Oftalmología Fundación Conde de Valenciana
Corneal Ectasia, Keratoconus
KeratoConus Data Acquisition With Topography and Aberrometry
This observational study aims to collect real-world wavefront aberrometry and corneal/scleral topography data from individuals with keratoconus and other corneal ectatic disorders.
- Trial name
- KC-DATA (NCT06859398)
- Testing
- Ocular Topography and Wavefront Aberrometry
- Where
- 2 sites in Belgium, Netherlands
- Volunteers
- 52 people
- Sponsor
- Azalea Vision
Unstable Corneas
Corneal Cross-Linking Comparing Variables
The purpose of this study is to evaluate the Safety and Efficacy of Corneal Cross Linking in a Continuous Beam versus Pulsed Treatments across epithelium on and epithelium off surfaces.
- Trial name
- NCT02095730
- Testing
- Epithelium-On Riboflavin, Epithelium-Off Riboflavin, UV Light - Continuous Beam
- Where
- 16 sites in United States
- Volunteers
- 500 people
- Sponsor
- Crowd Health Research, LTD
Keratoconus, Ectasia
Progressive Keratoconus or Ectasia Treatment Plan
Keratoconus and pellucid marginal degenerations are genetically based ocular conditions and post surgical ectasia is an iatrogenic condition.
- Trial name
- NCT01384773
- Testing
- Riboflavin Solution, UV-X Illumination System
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Stephen Trokel
Keratoconus
Treatment of Keratoconus Using Collagen Cross-Linking
The purpose of this study is to determine the effectiveness of collagen cross-linking in the cornea in halting the progression and possibly partially reversing the effects of keratoconus.
- Trial name
- NCT00841386
- Testing
- Riboflavin-5-phosphate
- Where
- 2 sites in United States
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- University at Buffalo