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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Keratoconus Clear all
Not listed Phase 3 Interventional

Corneal Collagen Cross-Linking (CXL) Performed With "Epi-ON" Versus "Epi-OFF" in Eyes With Keratoconus and Other Corneal Ectatic Disorders

NCT03858036
View directory record Official record
Conditions
Keratoconus, Ectasia
Interventions
Ricrolin+, VEGA UV-A system
Drug · Device
Lead sponsor
Center for Sight, Sacramento, CA
Other
Eligibility
12 Years and older
Enrollment
550 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Feb 27, 2019 · Synced Jul 22, 2026, 5:55 AM EDT
Terminated Phase 3 Interventional

Safety and Efficacy of Corneal Collagen Cross-Linking in Eyes With Keratoconus

NCT01972854
View directory record Official record
Conditions
Keratoconus
Interventions
riboflavin solution, placebo solution, KXL System
Drug · Device
Lead sponsor
Glaukos Corporation
Industry
Eligibility
12 Years and older
Enrollment
92 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
11
States / cities
Irvine, California • San Diego, California • Indianapolis, Indiana + 8 more
Source: ClinicalTrials.gov public record
Updated Apr 25, 2021 · Synced Jul 22, 2026, 5:55 AM EDT
Not yet recruiting No phase listed Observational

Assessing Patient Engagement in Keratoconus Clinical Research

NCT06288737
View directory record Official record
Conditions
Keratoconus
Interventions
Not listed
Lead sponsor
Power Life Sciences Inc.
Industry
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Feb 29, 2024 · Synced Jul 22, 2026, 5:55 AM EDT
Completed Not applicable Interventional Results available

Custom Anterior Surfacing of Scleral Lens for Vision Quality Improvement in Patients With Keratoconus

NCT03647046
View directory record Official record
Conditions
Keratoconus
Interventions
Customized Scleral Lens
Device
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Mar 30, 2020 · Synced Jul 22, 2026, 5:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Pilot Study to Investigate the Feasibility, Reliability and Efficacy of Utilizing OCT to Automate PROSE Fitting

NCT04649177
View directory record Official record
Conditions
Keratoconus, Ocular Surface Disease, Pellucid Marginal Corneal Degeneration, Ectasia, Corneal Trauma, Corneal Scar, Dry Eye Syndromes, Keratoconjunctivitis Sicca, Sjogren's Syndrome
Interventions
Ocular surface optical coherence tomography
Device
Lead sponsor
Boston Sight
Other
Eligibility
21 Years and older
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Needham, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 26, 2023 · Synced Jul 22, 2026, 5:55 AM EDT
Terminated No phase listed Observational

Collagen Crosslinking With Ultraviolet-A in Asymmetric Corneas

NCT01024322
View directory record Official record
Conditions
Keratoconus, Ectasia, Degeneration
Interventions
Ciprofloxicine or Vigamox or other., Nonsteroidal (Acular, Voltaren Xibrom, etc), Steroid (FML, Pred Forte, Flarex, etc.)
Drug
Lead sponsor
Cxlusa
Industry
Eligibility
8 Years and older
Enrollment
1,189 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2017
U.S. locations
3
States / cities
Miami, Florida • Rockville, Maryland • Fairfax, Virginia
Source: ClinicalTrials.gov public record
Updated Oct 10, 2018 · Synced Jul 22, 2026, 5:55 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

A Study to Test the Diagnostic Potential of Brillouin Microscopy for Corneal Ectasia

NCT02118922
View directory record Official record
Conditions
Keratoconus, Ectasia, Crosslinking, Fuchs' Endothelial Dystrophy
Interventions
Brillouin imaging
Procedure
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
20 Years to 75 Years
Enrollment
168 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 5, 2025 · Synced Jul 22, 2026, 5:55 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Screening Aid to Identify Corneas That May Have Pathologies or Other Conditions

NCT00396188
View directory record Official record
Conditions
Corneal Diseases
Interventions
Not listed
Lead sponsor
Carl Zeiss Meditec, Inc.
Industry
Eligibility
18 Years and older
Enrollment
769 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
4
States / cities
La Jolla, California • San Diego, California • Greenwood Village, Colorado + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 16, 2015 · Synced Jul 22, 2026, 5:55 AM EDT
Not listed Phase 2Phase 3 Interventional

Collagen Cross-Linking for Keratoconus/Ectasia With and Without Intacs

NCT01081561
View directory record Official record
Conditions
Keratoconus, Ectasia
Interventions
Riboflavin
Drug
Lead sponsor
Yaron S. Rabinowitz M.D.
Other
Eligibility
21 Years to 65 Years
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2021
U.S. locations
1
States / cities
Beverly Hills, California
Source: ClinicalTrials.gov public record
Updated Oct 1, 2018 · Synced Jul 22, 2026, 5:55 AM EDT
Recruiting No phase listed Observational

Scleral Lens Fitting Using Wide-Field OCT

NCT04570020
View directory record Official record
Conditions
Keratoconus, Irregular; Contour of Cornea
Interventions
Not listed
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years and older
Enrollment
258 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2028
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Sep 8, 2025 · Synced Jul 22, 2026, 5:55 AM EDT
Not listed Phase 3 Interventional

Transepithelial Corneal Collagen Crosslinking for Keratoconus and Corneal Ectasia

NCT01464268
View directory record Official record
Conditions
Keratoconus, Corneal Ectasia
Interventions
Riboflavin
Drug
Lead sponsor
Cornea and Laser Eye Institute
Other
Eligibility
18 Years and older
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2025
U.S. locations
1
States / cities
Teaneck, New Jersey
Source: ClinicalTrials.gov public record
Updated Feb 7, 2023 · Synced Jul 22, 2026, 5:55 AM EDT
Not listed Phase 3 Interventional

Corneal Collagen Crosslinking for Progressive Keratoconus and Ectasia Using Riboflavin/Dextran and Hypotonic Riboflavin

NCT01152541
View directory record Official record
Conditions
Keratoconus, Corneal Ectasia
Interventions
Riboflavin/Dextran, Hypotonic Riboflavin
Drug
Lead sponsor
Cornea and Laser Eye Institute
Other
Eligibility
18 Years and older
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2025
U.S. locations
1
States / cities
Teaneck, New Jersey
Source: ClinicalTrials.gov public record
Updated Feb 7, 2023 · Synced Jul 22, 2026, 5:55 AM EDT
Terminated Not applicable Interventional Results available

OCT-guided LALAK for KCN

NCT01901614
View directory record Official record
Conditions
Corneal Opacity, Keratoconus
Interventions
LALAK, IEK, Retrobulbar Block or General Anesthesia, optical coherence tomography (OCT), Topical Anesthesia, femtosecond laser
Procedure · Drug · Device
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 100 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jan 22, 2019 · Synced Jul 22, 2026, 5:55 AM EDT
Not listed Phase 2Phase 3 Interventional Accepts healthy volunteers

Treatment of Keratoconus Using Collagen Cross-Linking

NCT00841386
View directory record Official record
Conditions
Keratoconus
Interventions
Riboflavin-5-phosphate, Sham cross-linking
Drug
Lead sponsor
University at Buffalo
Other
Eligibility
16 Years to 35 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
2
States / cities
Amherst, New York • Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Feb 10, 2009 · Synced Jul 22, 2026, 5:55 AM EDT
Enrolling by invitation No phase listed Observational

Corneal Biomechanical Analysis Using Brillouin Microscopy

NCT04598932
View directory record Official record
Conditions
Keratoconus, Keratoconus, Unstable, Keratoconus, Stable
Interventions
Brillouin microscopy
Device
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years to 60 Years
Enrollment
220 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 16, 2026 · Synced Jul 22, 2026, 5:55 AM EDT
Not listed Phase 3 Interventional

The Effects of Corneal Collagen Cross-linking

NCT01708538
View directory record Official record
Conditions
Corneal Ectasia Disorders Including Keratoconus
Interventions
CXL
Drug
Lead sponsor
Rush Eye Associates
Other
Eligibility
10 Years to 70 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2024
U.S. locations
1
States / cities
Amarillo, Texas
Source: ClinicalTrials.gov public record
Updated Oct 25, 2022 · Synced Jul 22, 2026, 5:55 AM EDT
Recruiting Phase 2 Interventional

Placebo-controlled Study to Evaluate the Safety and Efficacy of GLK-221 Ophthalmic Solution in Subjects With Keratoconus

NCT07400952
View directory record Official record
Conditions
Keratoconus
Interventions
GLK-221 Ophthalmic Solution, Placebo Ophthalmic Solution
Drug
Lead sponsor
Glaukos Corporation
Industry
Eligibility
18 Years to 55 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Westerville, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 9, 2026 · Synced Jul 22, 2026, 5:55 AM EDT
Completed Phase 2 Interventional Results available

Corneal Crosslinking in Patients With Keratoconus and Post-Refractive Ectasia

NCT01143389
View directory record Official record
Conditions
Keratoconus, Post-Refractive Ectasia
Interventions
Riboflavin, UVX light
Drug · Device
Lead sponsor
Price Vision Group
Industry
Eligibility
10 Years and older
Enrollment
510 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2017
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Jun 5, 2018 · Synced Jul 22, 2026, 5:55 AM EDT
Not listed Phase 1 Interventional

Study of the Safety and Effectiveness of Collagen Cross-Linking at an Irradiance of 9 mW/cm2 and 18 mW/cm2

NCT02009709
View directory record Official record
Conditions
Keratoconus, Corneal Ectasia
Interventions
Riboflavin 0.1% ophthalmic solution, CCL-VARIO UV lamp, CCL-VARIO at 18 mW/cm2
Drug · Device
Lead sponsor
Robert Mack, M.D.
Other
Eligibility
18 Years to 80 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2013
U.S. locations
1
States / cities
Hoffman Estates, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 13, 2015 · Synced Jul 22, 2026, 5:55 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Microwave Treatment and Corneal Collagen Crosslinking for Keratoconus

NCT01672814
View directory record Official record
Conditions
Keratoconus
Interventions
riboflavin ophthalmic solution, Vedera KXS Microwave System
Drug · Device
Lead sponsor
Cornea and Laser Eye Institute
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2017
U.S. locations
1
States / cities
Teaneck, New Jersey
Source: ClinicalTrials.gov public record
Updated Jul 16, 2018 · Synced Jul 22, 2026, 5:55 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Corneal Elastography and Patient Specific Modeling

NCT03030755
View directory record Official record
Conditions
Cornea; Ectasia, Refractive Errors, Keratoconus
Interventions
Optical coherence tomography
Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
16 Years to 80 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2027
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Jul 22, 2026, 5:55 AM EDT
Terminated Not applicable Interventional Results available

Optic Nerve Head Structural Response to IOP Elevation in Patients With Keratoconus

NCT03560609
View directory record Official record
Conditions
Keratoconus, Glaucoma
Interventions
Ophthalmodynamometer, Goldmann applanation tonometer, Pentacam, ORA, Optical Coherence Tomography (OCT)
Device
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 90 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 28, 2025 · Synced Jul 22, 2026, 5:55 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety & Effectiveness of the PXL-Platinum 330 System for CXL Using Riboflavin Solution

NCT04667572
View directory record Official record
Conditions
Keratoconus, Pellucid Marginal Corneal Degeneration, Corneal Degeneration, Corneal Ectasia
Interventions
PXL-330 Platinum device for crosslinking with Peschke riboflavin solution
Combination Product
Lead sponsor
Cornea Associates of Texas
Other
Eligibility
8 Years and older
Enrollment
249 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Feb 10, 2025 · Synced Jul 22, 2026, 5:55 AM EDT
Withdrawn Phase 2 Interventional

The Role of Antioxidant Supplementation in Keratoconus Patients

NCT02827747
View directory record Official record
Conditions
Keratoconus
Interventions
Antioxidants (Vitamins A,C,E) plus GSH, Placebo, Centrum, Dietary Sources
Other · Dietary Supplement · Combination Product
Lead sponsor
University of Miami
Other
Eligibility
18 Years to 45 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Palm Beach Gardens, Florida
Source: ClinicalTrials.gov public record
Updated Aug 15, 2021 · Synced Jul 22, 2026, 5:55 AM EDT