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Showing 1–24 of 93 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Keratoconus Clear all
Recruiting Not applicable Interventional

Collagen Cross-linking in Keratoconus

NCT03760432
View directory record Official record
Conditions
Keratoconus
Interventions
Laser Custom Corneal Collagen Cross-Linking
Procedure
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2027
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Sep 8, 2025 · Synced Sep 10, 2026, 6:11 PM EDT
Terminated Phase 2 Interventional Results available

Collagen Cross-Linking With Ultraviolet-A in Asymmetric Corneas

NCT03029104
View directory record Official record
Conditions
Keratoconus, Corneal Diseases, Eye Diseases, Photosensitizing Agents
Interventions
CXLO Corneal Strengthening Solution and UVA Illumination Device
Combination Product
Lead sponsor
Cxlusa
Industry
Eligibility
8 Years and older
Enrollment
2,228 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
9
States / cities
Scottsdale, Arizona • San Francisco, California • Littleton, Colorado + 6 more
Source: ClinicalTrials.gov public record
Updated Jan 11, 2022 · Synced Sep 10, 2026, 6:11 PM EDT
Recruiting Phase 3 Interventional

Compassionate Use Study of Epi-ON Corneal Collagen Crosslinking Performed Using UVA Exposure on Eyes With Ectatic Corneal Diseases for Subjects With Down Syndrome

NCT07135167
View directory record Official record
Conditions
Down Syndrome (DS), Keratoconus, Pellucid Marginal Degeneration, Forme Fruste Keratoconus (FFK)
Interventions
Epi-ON corneal cross-linking (CXL)
Combination Product
Lead sponsor
Woolfson Eye Institute
Other
Eligibility
8 Years and older
Enrollment
225 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
12
States / cities
Atlanta, Georgia • Canton, Georgia • Cumming, Georgia + 8 more
Source: ClinicalTrials.gov public record
Updated Feb 1, 2026 · Synced Sep 10, 2026, 6:11 PM 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 Sep 10, 2026, 6:11 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Wavefront Guided Scleral Lenses for Keratoconus and Irregular Astigmatism

NCT04698590
View directory record Official record
Conditions
Keratoconus, Irregular Astigmatism, Corneal Ectasia, Aberration, Corneal Wavefront, Wavefront Aberration, Corneal, Pellucid Marginal Corneal Degeneration, Keratoglobus
Interventions
Wavefront Guided Scleral Lenses, Traditional Scleral Lenses
Device
Lead sponsor
Cornea and Laser Eye Institute
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Teaneck, New Jersey
Source: ClinicalTrials.gov public record
Updated May 2, 2024 · Synced Sep 10, 2026, 6:11 PM 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 Sep 10, 2026, 6:11 PM EDT
Completed Phase 3 Interventional

Epithelium-On Corneal Cross-linking in Subjects 8 to 45 Years of Age With Keratoconus

NCT06100952
View directory record Official record
Conditions
Keratoconus
Interventions
Riboflavin and Sodium Iodide solution and Ultraviolet-A treatment, Placebo and sham treatment
Combination Product
Lead sponsor
Epion Therapeutics
Industry
Eligibility
8 Years to 45 Years
Enrollment
398 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
12
States / cities
Scottsdale, Arizona • Tucson, Arizona • Murrieta, California + 9 more
Source: ClinicalTrials.gov public record
Updated Jun 24, 2026 · Synced Sep 10, 2026, 6:11 PM 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 Sep 10, 2026, 6:11 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

The K-Map Study, Global Prevalence of KC

NCT03115710
View directory record Official record
Conditions
Keratoconus
Interventions
Rotating Scheimpflug camera (Pentacam HR)
Diagnostic Test
Lead sponsor
University Hospital, Geneva
Other
Eligibility
6 Years to 23 Years
Enrollment
20,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2030
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 10, 2025 · Synced Sep 10, 2026, 6:11 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Gamma-Irradiated Corneal Inlay for Keratoconus

NCT04895514
View directory record Official record
Conditions
Keratoconus
Interventions
Gamma-irradiated corneal tissue inlay
Procedure
Lead sponsor
Cornea and Laser Eye Institute
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Teaneck, New Jersey
Source: ClinicalTrials.gov public record
Updated Nov 13, 2022 · Synced Sep 10, 2026, 6:11 PM 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 Sep 10, 2026, 6:11 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

A Study to Assess Brillouin Hydration Mapping for the Evaluation of Ocular Tissues and Diseases

NCT07780890
View directory record Official record
Conditions
Fuchs Endothelial Corneal Dysfunction, Open Angle Glaucoma (OAG), Dry Eye Disease (DED), Keratoconus, Lasik Eye Surgery
Interventions
Not listed
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
20 Years to 79 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 24, 2026 · Synced Sep 10, 2026, 6:11 PM 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 Sep 10, 2026, 6:11 PM EDT
No Longer Available No phase listed Expanded access Accepts healthy volunteers

Progressive Keratoconus or Ectasia Treatment Plan

NCT01384773
View directory record Official record
Conditions
Keratoconus, Ectasia
Interventions
Riboflavin Solution, UV-X Illumination System
Other · Device
Lead sponsor
Stephen Trokel
Other
Eligibility
16 Years and older
Healthy volunteers
Accepts healthy volunteers
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 8, 2023 · Synced Sep 10, 2026, 6:11 PM EDT
Withdrawn Phase 1Phase 2 Interventional

PXL-Platinum 330 in Eyes With Corneal Thinning Conditions

NCT05489510
View directory record Official record
Conditions
Corneal Thinning, Keratoconus
Interventions
Pulsed or continuous lighting
Combination Product
Lead sponsor
Vishal Jhanji
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2031
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 4, 2023 · Synced Sep 10, 2026, 6:11 PM EDT
Not listed Phase 3 Interventional Accepts healthy volunteers

Corneal Collagen Crosslinking for Keratoconus and Ectasia Using Riboflavin/Dextran or Riboflavin/Methylcellulose

NCT04897503
View directory record Official record
Conditions
Keratoconus, Corneal Ectasia
Interventions
Riboflavin
Drug
Lead sponsor
Cornea and Laser Eye Institute
Other
Eligibility
12 Years and older
Enrollment
170 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Teaneck, New Jersey
Source: ClinicalTrials.gov public record
Updated Jan 3, 2023 · Synced Sep 10, 2026, 6:11 PM EDT
Completed Phase 1 Interventional

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

NCT04177082
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
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Oct 18, 2022 · Synced Sep 10, 2026, 6:11 PM EDT
Completed Phase 3 Interventional

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

NCT01643226
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
230 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
8
States / cities
San Diego, California • Indianapolis, Indiana • Overland Park, Kansas + 5 more
Source: ClinicalTrials.gov public record
Updated Apr 25, 2021 · Synced Sep 10, 2026, 6:11 PM EDT
Completed No phase listed Observational

Observational Study of Keratoconus and Post-keratoplasty Eyes

NCT02109848
View directory record Official record
Conditions
Keratoconus and Post-keratoplasty
Interventions
Not listed
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 100 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 5, 2018 · Synced Sep 10, 2026, 6:11 PM EDT
Not listed Phase 3 Interventional Accepts healthy volunteers

Transepithelial (Epi-on) Corneal Collagen Crosslinking to Treat Keratoconus and Corneal Ectasia

NCT04905108
View directory record Official record
Conditions
Keratoconus, Corneal Ectasia
Interventions
Riboflavin
Drug
Lead sponsor
Cornea and Laser Eye Institute
Other
Eligibility
12 Years and older
Enrollment
160 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Teaneck, New Jersey
Source: ClinicalTrials.gov public record
Updated Jan 3, 2023 · Synced Sep 10, 2026, 6:11 PM EDT
Enrolling by invitation Phase 1Phase 2 Interventional

Dextenza Versus Topical Steroid Eye Drops for Postoperative Management Following Corneal Crosslinking

NCT06235567
View directory record Official record
Conditions
Keratoconus
Interventions
Dextenza 0.4Mg Ophthalmic Insert, topical prednisolone acetate 1% (PredForte) eye drops
Drug
Lead sponsor
Maanasa Indaram, MD
Other
Eligibility
13 Years to 64 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
3
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 23, 2026 · Synced Sep 10, 2026, 6:11 PM EDT
Completed Phase 2Phase 3 Interventional

Corneal Collagen Cross-Linking for the Treatment of Progressive Keratoconus and Corneal Ectasia

NCT00567671
View directory record Official record
Conditions
Progressive Keratoconus, Corneal Ectasia
Interventions
Corneal collagen, Sham comparator
Procedure
Lead sponsor
Emory University
Other
Eligibility
14 Years and older
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 1, 2010 · Synced Sep 10, 2026, 6:11 PM 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 Sep 10, 2026, 6:11 PM EDT
Not listed Phase 1Phase 2 Interventional

Safety and Efficacy of Corneal Cross-linking in Subjects With Keratoconus

NCT05314738
View directory record Official record
Conditions
Progressive Keratoconus
Interventions
NXL Energy 1, NXL Energy 2, NXL Energy 3, Sham Treatment
Combination Product
Lead sponsor
Glaukos Corporation
Industry
Eligibility
18 Years to 55 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
3
States / cities
Dothan, Alabama • Teaneck, New Jersey • Westerville, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 7, 2024 · Synced Sep 10, 2026, 6:11 PM EDT