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Showing 25–42 of 18 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Eye Health, Vision, Cognitive Function
Interventions
VisionPure Dietary Supplement, Placebo
Dietary Supplement
Lead sponsor
Applied Science & Performance Institute
Industry
Eligibility
18 Years to 40 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
3
States / cities
Lutz, Florida • Tampa, Florida
Conditions
Diabetes Mellitus - Type 1, Diabetes Mellitus - Type 2, Non-proliferative Diabetic Retinopathy
Interventions
multi-component nutritional supplement capsules, multi-component dietary supplement
Dietary Supplement
Lead sponsor
ZeaVision, LLC
Industry
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Tacoma, Washington
Conditions
Exudative Macular Degeneration
Interventions
TRIPLE COMBINATION THERAPY
Procedure
Lead sponsor
The Retina Center of St. Louis County, PC
Other
Eligibility
50 Years and older
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
St Louis, Missouri
Conditions
Ocular Blood Flow
Interventions
Experimental, Placebo
Dietary Supplement
Lead sponsor
LycoRed Ltd.
Industry
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Indianapolis, Indiana
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Yellow Potatoes and Carotenoids

NCT07606001
Conditions
Carotenoids
Interventions
Yellow-flesh potatoes, White-flesh potatoes
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 80 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Gainesville, Florida
Completed Not applicable Interventional Results available

The Zeaxanthin and Visual Function Study

NCT00564902
Conditions
Age Related Macular Degeneration, Cognition Disorders
Interventions
3R 3'R Zeaxanthin, Lutein, Lutein and Zeaxanthin
Drug · Dietary Supplement
Lead sponsor
Chrysantis, Inc.
Industry
Eligibility
45 Years to 90 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
North Chicago, Illinois
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Gojiberry Intake (Lycium Barbarium) on Macular Function

NCT03983525
Conditions
Macular Pigment Optical Density
Interventions
Goji berry, Lutein + zeaxanthin supplementation
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
45 Years to 65 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Davis, California
Terminated Phase 4 Interventional Accepts healthy volunteers

Investigation of Macular Pigment Augmentation on Dark Adaptation

NCT00478439
Conditions
Aging, Age-Related Macular Degeneration
Interventions
ZeaVision EyePromise Restore, Multivitamin
Dietary Supplement
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
60 Years to 80 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
Birmingham, Alabama
Completed Phase 1 Interventional Accepts healthy volunteers

Lutein/Zeaxanthin and Omega-3 Supplementation in Persons Over Age 60

NCT00121589
Conditions
Macular Degeneration
Interventions
Lutein
Drug
Lead sponsor
National Eye Institute (NEI)
NIH
Eligibility
60 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Skin Carotenoids
Interventions
Dietary Supplement
Other
Lead sponsor
4Life Research, LLC
Industry
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Sandy City, Utah
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Sweet Corn and Carotenoids

NCT06892444
Conditions
Carotenoids
Interventions
Yellow Sweet Corn, White Sweet Corn
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 90 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Gainesville, Florida
Completed Early Phase 1 Interventional Accepts healthy volunteers

Carotenoids for Collision Athletes

NCT06270680
Conditions
Head Injury, Carotenoids
Interventions
Vision Edge Pro, Placebo
Drug · Other
Lead sponsor
Penn State University
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
University Park, Pennsylvania
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of a Zeaxanthin Intervention on Visuomotor Function

NCT02017418
Conditions
Behavior and Behavior Mechanisms
Interventions
zeaxanthin, combinatory supplement
Dietary Supplement
Lead sponsor
University of Georgia
Other
Eligibility
18 Years to 40 Years
Enrollment
102 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Athens, Georgia
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Goji Berry and Vasomotor Symptoms Pilot Study

NCT07660315
Conditions
Vasomotor Symptoms
Interventions
Goji Berry Juice Powder, Goji Berry Powder
Other
Lead sponsor
University of California, Davis
Other
Eligibility
40 Years to 65 Years · Female only
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Davis, California
Conditions
Idiopathic Juxtafoveal Telangiectasia
Interventions
zeaxanthin
Drug
Lead sponsor
Paul S. Bernstein
Other
Eligibility
50 Years to 85 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
1
States / cities
Salt Lake City, Utah
Conditions
Cancer Metastatic, Metastatic Solid Tumor
Interventions
Zeaxanthin, Zeaxanthin Plus Pembrolizumab
Biological · Combination Product
Lead sponsor
Valley Health System
Other
Eligibility
18 Years to 99 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
1
States / cities
Paramus, New Jersey
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

A Study to Assess the Impact of a Nutritional Supplement on Wellbeing and Nutrient Absorption

NCT06749808
Conditions
Nutrition Status
Interventions
Carotenoid Nutritional Supplement, Placebo
Dietary Supplement
Lead sponsor
Pharmanex
Industry
Eligibility
20 Years to 65 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Provo, Utah
Conditions
Center-involved Diabetic Macular Edema (CI-DME)
Interventions
Diabetes Visual Function Study (DiVFuSS) softgels, canola oil placebo softgels, 2 per day
Dietary Supplement · Other
Lead sponsor
ZeaVision, LLC
Industry
Eligibility
18 Years to 80 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
2
States / cities
Olympia, Washington • Tacoma, Washington