Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Sep 6, 2026, 11:52 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 91 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: Contrast Sensitivity Clear all
Completed No phase listed Observational Accepts healthy volunteers

Neural and Visual Responses to Light in Bipolar Disorder: A Novel Putative Biomarker

NCT02048995
View directory record Official record
Conditions
Bipolar Depression
Interventions
Not listed
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 50 Years
Enrollment
91 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2017
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 28, 2018 · Synced Sep 6, 2026, 11:52 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Atlas of Retinal Imaging in Alzheimer's Study

NCT03862222
View directory record Official record
Conditions
Alzheimer Disease, Mild Cognitive Impairment, Mild Dementia, Aging, Cognitive Change
Interventions
Retinal Imaging, Pupillometry, Contrast Sensitivity, Neuropsychological Evaluation, APOE genotyping, blood draw, Gait Assessment, Actigraphy
Other · Diagnostic Test · Genetic
Lead sponsor
University of Rhode Island
Other
Eligibility
55 Years to 80 Years
Enrollment
165 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2025
U.S. locations
4
States / cities
Clearwater, Florida • St. Petersburg, Florida • Kingston, Rhode Island + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 4, 2025 · Synced Sep 6, 2026, 11:52 AM EDT
Completed Not applicable Interventional Results available

How Has Glaucoma Affected Your Quality of Life?

NCT01476644
View directory record Official record
Conditions
Glaucoma, Quality of Life
Interventions
Clinical evaluation, Performance based measures, Subjective measures of vision-related quality of life
Other
Lead sponsor
Wills Eye
Other
Eligibility
18 Years to 80 Years
Enrollment
161 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 14, 2019 · Synced Sep 6, 2026, 11:52 AM EDT
Completed Early Phase 1 Interventional

PSMA-based 18F-DCFPyL PET/CT and PET/MRI Pilot Studies in Prostate Cancer

NCT03232164
View directory record Official record
Conditions
Prostate Cancer, Prostate Neoplasm
Interventions
18F-DCFPyL PET
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older · Male only
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 11, 2024 · Synced Sep 6, 2026, 11:52 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Vision Measured by the Vimetrics CVA Compared With Chart Testing Under Similar Luminance and Contrast Conditions

NCT02028351
View directory record Official record
Conditions
Refractive Error, Cataract, Maculopathy
Interventions
Not listed
Lead sponsor
Sinclair Technologies, LLC
Industry
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Elkins Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 6, 2014 · Synced Sep 6, 2026, 11:52 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

The Safety and Efficacy of Phentolamine Mesylate Ophthalmic Solution in Subjects With Severe Night Vision Disturbances

NCT01703559
View directory record Official record
Conditions
Night Vision Complaints, Decrease in Night Vision, Disturbance; Vision, Loss
Interventions
Phentolamine Mesylate Ophthalmic Solution 1.0%, Phentolamine Mesylate Ophthalmic Solution 0.5%, Phentolamine Mesylate Ophthalmic Solution Vehicle (Placebo)
Drug · Other
Lead sponsor
Ocuphire Pharma, Inc.
Industry
Eligibility
18 Years to 45 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 31, 2019 · Synced Sep 6, 2026, 11:52 AM EDT
Completed Phase 2 Interventional

Single Oral Doses Study of Nerispirdine on Visual Function in Patients With Multiple Sclerosis

NCT00772525
View directory record Official record
Conditions
Multiple Sclerosis, Optic Nerve, Neuritis
Interventions
Nerispirdine, Placebo
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Bridgewater, New Jersey
Source: ClinicalTrials.gov public record
Updated Feb 25, 2016 · Synced Sep 6, 2026, 11:52 AM EDT
Completed Phase 2 Interventional Results available

Comparative Study of Sensitivity of Ga-DOTATOC PET vs Octreoscan SPECT + CT

NCT01869725
View directory record Official record
Conditions
Adult Medulloblastoma, Childhood Medulloblastoma, Neuroblastoma, Neuroendocrine Tumor, Somatostatinoma
Interventions
gallium Ga 68-edotreotide, positron emission tomography/computed tomography, indium In 111 pentetreotide, computed tomography, contrast-enhanced magnetic resonance imaging
Drug · Procedure · Radiation
Lead sponsor
Sue O'Dorisio
Other
Eligibility
2 Years and older
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Sep 21, 2021 · Synced Sep 6, 2026, 11:52 AM EDT
Completed Not applicable Interventional

Diabetic Retinopathy Tethered Augmented Reality With Eye4 Study

NCT05491746
View directory record Official record
Conditions
Diabetic Retinopathy, Low Vision
Interventions
Eye4, Placebo
Device · Other
Lead sponsor
Eyedaptic
Industry
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Laguna Hills, California
Source: ClinicalTrials.gov public record
Updated Feb 14, 2023 · Synced Sep 6, 2026, 11:52 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Prospective Evaluation of Contrast Sensitivity and Disability Glare in Refractive Surgery, a Sub-Study of: Initial Evaluation of Excimer Laser Keratorefractive Surgery in U.S. Army Personnel (WU # 2335-99)

NCT00413868
View directory record Official record
Conditions
Myopia
Interventions
LASIK, PRK, Small target contrast sensitivity and disability glare
Procedure · Behavioral
Lead sponsor
Walter Reed Army Medical Center
Federal
Eligibility
21 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Mar 31, 2008 · Synced Sep 6, 2026, 11:52 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Combining Donepezil With Perceptual Learning in Normal and Amblyopic Human The Effect of Donepezil on Perceptual Learning in Adult Amblyopia

NCT03109314
View directory record Official record
Conditions
Amblyopia
Interventions
Donepezil, Single-letter training, Uncrowd training
Drug · Behavioral
Lead sponsor
Dennis Levi
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2018
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated Jan 16, 2019 · Synced Sep 6, 2026, 11:52 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Understanding the Mechanisms of Diastolic Dysfunction

NCT03340233
View directory record Official record
Conditions
Heart Failure With Preserved Ejection Fraction, Healthy
Interventions
MRI (cardiac) off-label use gadolinium contrast (IND exempt), MRI (cardiac)
Diagnostic Test
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 30, 2019 · Synced Sep 6, 2026, 11:52 AM EDT
Completed No phase listed Observational

The Relationship of Residence Time and Visual Effect of Optive and Systane in Dry Eye Subjects

NCT00553579
View directory record Official record
Conditions
Dry Eye Disease
Interventions
Not listed
Lead sponsor
Southern California College of Optometry at Marshall B. Ketchum University
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Fullerton, California
Source: ClinicalTrials.gov public record
Updated May 19, 2008 · Synced Sep 6, 2026, 11:52 AM EDT
Terminated No phase listed Observational

PET/MRI to Enhance Precision Guidance in Head and Neck Radiation Treatment Planning

NCT03286972
View directory record Official record
Conditions
Head and Neck Neoplasms
Interventions
PET/MRI
Device
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Nov 20, 2019 · Synced Sep 6, 2026, 11:52 AM EDT
Recruiting Not applicable Interventional

Programmed Ventricular Stimulation to Risk Stratify for Early Cardioverter-Defibrillator (ICD) Implantation to Prevent Tachyarrhythmias Following Acute Myocardial Infarction (PROTECT-ICD)

NCT03588286
View directory record Official record
Conditions
Sudden Cardiac Death
Interventions
Electrophysiology study (EPS), Standard Care, Cardiac Magnetic Resonance (CMR)
Procedure · Other
Lead sponsor
Western Sydney Local Health District
Other
Eligibility
18 Years to 85 Years
Enrollment
1,058 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2029
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 6, 2024 · Synced Sep 6, 2026, 11:52 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Differences in Corneal Structure and Function in Patients With Sjogrens vs. Non-Sjogrens Dry Eye

NCT06364657
View directory record Official record
Conditions
Sjogren's Syndrome, Dry Eye, Neurotrophic Keratitis
Interventions
Eye Exam
Diagnostic Test
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 14, 2025 · Synced Sep 6, 2026, 11:52 AM EDT
Completed Not applicable Interventional Results available

Comparison of the Sensitivity and Specificity of Acoustic Angiography to the Sensitivity and Specificity of Conventional Ultrasound

NCT02175628
View directory record Official record
Conditions
Signs and Symptoms
Interventions
Acoustic Angiography
Device
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 4, 2019 · Synced Sep 6, 2026, 11:52 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Macular Pigment and Glare Disability

NCT00909090
View directory record Official record
Conditions
Vision, Entoptic
Interventions
12 mg Lutein + Zeaxanthin, Visually identical placebo
Dietary Supplement
Lead sponsor
University of Georgia
Other
Eligibility
18 Years to 40 Years
Enrollment
109 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Athens, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 12, 2020 · Synced Sep 6, 2026, 11:52 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Impact of Dry Eye Syndrome on Metrics of Low Contrast Vision Before and After Meibomian Gland Expression

NCT05713981
View directory record Official record
Conditions
Meibomian Gland Dysfunction
Interventions
Meibomian gland (MG) expression
Procedure
Lead sponsor
University of the Incarnate Word
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jun 25, 2023 · Synced Sep 6, 2026, 11:52 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Evaluating NeuroVision's Neural Vision Correction (NVC) Myopia Treatment

NCT00469612
View directory record Official record
Conditions
Myopia
Interventions
NeuroVision's NVC treatment for Low Myopia
Device
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 59 Years
Enrollment
2 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 24, 2018 · Synced Sep 6, 2026, 11:52 AM EDT
Active, not recruiting Not applicable Interventional

Retraining Neural Pathways Improves Cognitive Skills After A Mild Traumatic Brain Injury

NCT03655782
View directory record Official record
Conditions
MTBI - Mild Traumatic Brain Injury
Interventions
PATH + DigitMemory (DM) neurotraining
Behavioral
Lead sponsor
Perception Dynamics Institute
Industry
Eligibility
18 Years to 60 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
2
States / cities
San Diego, California • Solana Beach, California
Source: ClinicalTrials.gov public record
Updated Jul 14, 2026 · Synced Sep 6, 2026, 11:52 AM EDT
Not listed Not applicable Interventional

Evaluation of a Visual Remediation Intervention for Schizophrenia

NCT03117452
View directory record Official record
Conditions
Schizophrenia
Interventions
Visual Training
Behavioral
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 60 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Piscataway, New Jersey
Source: ClinicalTrials.gov public record
Updated Mar 29, 2018 · Synced Sep 6, 2026, 11:52 AM EDT
Completed Phase 2 Interventional Results available

Front Line Ibrutinib Without Corticosteroids for Newly Diagnosed Chronic Graft-versus-Host Disease

NCT04294641
View directory record Official record
Conditions
Chronic GVHD
Interventions
Ibrutinib, ECG, PFT's, CT, Steroid pulse (prednisone), Voriconazole, Posaconazole, Azithromycin, Montelukast, Budesonide, Beclomethasone, Filgrastim, Pegfilgrastim, Erythropoietin, Transfusions, Oral/Skin biopsy
Drug · Diagnostic Test · Other + 1 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
2
States / cities
Bethesda, Maryland • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 22, 2026 · Synced Sep 6, 2026, 11:52 AM EDT
Completed No phase listed Observational

Use of a Water Soluble Contrast-Based Protocol to Assist in the Management of Pediatric Adhesive Small Bowel Obstruction

NCT06101719
View directory record Official record
Conditions
Small Bowel Obstruction, Contrast Media Adverse Reaction
Interventions
Enteral contrast challenge
Diagnostic Test
Lead sponsor
Children's Hospital Colorado
Other
Eligibility
1 Year to 20 Years
Enrollment
136 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
9
States / cities
Phoenix, Arizona • Los Angeles, California • Oakland, California + 6 more
Source: ClinicalTrials.gov public record
Updated Aug 22, 2024 · Synced Sep 6, 2026, 11:52 AM EDT