Clinical trials: Carotenoids
Focus of Study: Carotenoid Absorption
Comparison of Carotenoid Bioavailability From Fresh Papaya, Tomato and Carrot
The goal of this study is to determine if papaya fruits are an exceptionally good food source for carotenoids in humans, particularly when compared more common carotenoid sources like carrots and tomatoes.
- Trial name
- NCT01748916
- Testing
- Papaya, Carrot, Tomato
- Where
- 2 sites in United States, Costa Rica
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Ohio State University
Pediatric Obesity
Family-based Lifestyle Intervention Program and Carotenoid Supplementation for Children With Obesity
This is a pilot study of children between the ages of 8 to 11 years of age who are obese and participating in an intense family based intervention with a family-focused multi-component lifestyle intervention.
- Trial name
- NCT02060279
- Testing
- Lifestyle intervention and carotenoid supplements
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- Nemours Children's Clinic
Carotenoid and Flavonoid Absorption
Carotenoid and Flavonoid Absorption From Red and Tangerine-Type Tomatoes
Eating a diet rich in tomatoes has been associated with decreased risk for a variety of diseases. Tomatoes contain red-colored lycopene (one type of pigment in the class of pigments called carotenoids), which has been associated…
- Trial name
- NCT01696773
- Testing
- Tangerine tomato juice, Red tomato juice
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Ohio State University
Healthy
Novel 13C Carotenoids for Absorption and Metabolism Studies in Humans
Tomatoes contain several compounds which may be beneficial for human health and prevention of disease, although this relationship is poorly understood and very controversial.
- Trial name
- NCT01692340
- Testing
- Isotopically labeled lycopene, phytoene or phytofluene
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Ohio State University Comprehensive Cancer Center
Nutrient Deficiency, Pregnancy Related
Lutein & Zeaxanthin in Pregnancy - Carotenoid Supplementation During Pregnancy: Ocular and Systemic Effects
This study is designed to test the hypotheses that (1) the third trimester of pregnancy is a period of maternal systemic and ocular carotenoid depletion; (2) prenatal supplementation with 10 milligrams of lutein and 2 milligrams…
- Trial name
- L-ZIP (NCT03750968)
- Testing
- Carotenoid Group, Control Group
- Where
- United States
- Volunteers
- 47 people, healthy volunteers welcome
- Sponsor
- Paul S. Bernstein
Age Related Macular Degeneration, Cognition Disorders
The Zeaxanthin and Visual Function Study
To evaluate if supplementation of zeaxanthin (with or without Lutein) is beneficial to patients with early and moderate Atrophic Age Related Macular Degeneration.
- Trial name
- ZVF (NCT00564902)
- Testing
- 3R 3'R Zeaxanthin, Lutein, Lutein and Zeaxanthin
- Where
- United States
- Volunteers
- 60 people
- Sponsor
- Chrysantis, Inc.
Vitamin A Deficiency, Maternal Mortality
Impact of Maternal Vitamin A or Beta-Carotene Supplementation on Maternal and Infant Mortality in Bangladesh
The purpose of this trial is to determine whether providing women with a weekly oral supplement of vitamin A, either preformed or as beta-carotene, at a dosage equivalent to a recommended intake from early pregnancy through three…
- Conditions
- Vitamin A Deficiency, Maternal Mortality, Infant Mortality
- Trial name
- NCT00198822
- Testing
- Vitamin A or Beta-Carotene Supplements
- Where
- 3 sites in United States, Bangladesh
- Volunteers
- 59,666 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins Bloomberg School of Public Health
Noise-Induced Hearing Loss
Micronutrients to Prevent Noise-induced Hearing Loss
Noise-induced hearing loss (NIHL) is a significant clinical, social, and economic issue. Studies in animals have allowed us to identify mechanisms contributing to NIHL, including direct mechanical trauma, free radicals formed in…
- Trial name
- NCT00808470
- Testing
- beta-carotene, vitamins C and E, magnesium
- Where
- United States
- Volunteers
- 72 people, healthy volunteers welcome
- Sponsor
- University of Michigan
Skin Cancer, Basal Cell Carcinoma
Correlation Between Skin Carotenoid Levels and Previous History of Skin Cancer
The purpose of this study is to determine the difference of skin carotenoid levels between subjects with previous squamous cell carcinomas (SCC), subjects with previous basal cell carcinomas (BCC) and a control group.
- Conditions
- Skin Cancer, Basal Cell Carcinoma, Squamous Cell Carcinoma
- Trial name
- NCT00836342
- Where
- United States
- Volunteers
- 81 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital