Clinical trials: Lutein
Healthy But Chronically Stressed
Effects of Lutein on Learning and Memory in Chronically Stressed Subjects and in an Acute Stressful Situation (TSST - Trier Social Stress Test): A Randomized, Double-blind, Placebo-controlled Trial)
The purpose of this study is to study effects of a four months lutein supplementation (in form of a lutein fortified nutritional beverage) on general learning and memory performance as well as on acute stress-induced changes in…
- Trial name
- MemLearn (NCT02257801)
- Testing
- Nutritional beverage fortified with 6mg lutein/day, Nutritional beverage fortified with 12mg lutein/day
- Where
- Germany
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- dsm-firmenich Switzerland AG
Vision, Entoptic
Macular Pigment and Glare Disability
The purpose of this study is: I. To measure MP optical density (MPOD) in two groups (experimental and placebo) of 50 subjects each (N = 100), during an Lutein + Zeaxanthin supplementation period of 12 months. II.
- Trial name
- MP-GD (NCT00909090)
- Testing
- 12 mg Lutein + Zeaxanthin
- Where
- United States
- Volunteers
- 109 people, healthy volunteers welcome
- Sponsor
- University of Georgia
Biological Availability of Vitamins and Micronutrients
Effect of Genetic Variants on Fat-soluble Vitamin Bioavailability
The aim was to identify minor genetic variations (single nucleotide polymorphisms) that explain the interindividual variability in bioavailability of fat soluble micronutrients (fat soluble vitamins and carotenoids).
- Trial name
- VITAGENES (NCT02100774)
- Where
- France
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
Mild Cognitive Impairment
Consumption of Potatoes, Avocados and Chickpeas and Cognitive Function in Older Adults
Cognitive impairment is also a major risk factor for development of dementia later in life. Findings from the investigators studies suggest that the carotenoids, lutein and zeaxanthin may be important in cognitive function in the…
- Trial name
- NCT01620567
- Testing
- avocado, potato or chickpea
- Where
- United States
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- Tufts University
Age-related Macular Degeneration
Consumption of Eggs Rich in Lutein and Omega-3 Fatty Acids on the Macular Pigment
This study is to determine the impact of the consumption of eggs rich in lutein/zeaxanthin from lucerne protein concentrate and DHA from microalgae on the plasma levels of these compounds but also on the macular pigment optical…
- Trial name
- ALGOVUE (NCT01480700)
- Testing
- Nutritional study
- Where
- France
- Volunteers
- 99 people, healthy volunteers welcome
- Sponsor
- Institut Pasteur de Lille
Dry Eye Syndromes
Treatment of Dry Eye With Supplements
Dry eye syndrome (DES) is a highly prevalent ocular condition inducing an inflammatory response on the ocular surface. Common symptoms include ocular discomfort, visual impairment and instability of the tear film with potential…
- Trial name
- NCT01364311
- Testing
- Vitamac® Tag and Nacht capsules
- Where
- Austria
- Volunteers
- healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Oxidative Stress in Healthy Subjects
Effects of Lutein Supplementation on Oxidative Stress and Inflammation in Healthy Nonsmokers
Lutein is one of oxygenated carotenoids. Over the past few years, there has been increased interest in evaluating the effect of lutein for optimizing immune functions.
- Trial name
- NCT01056094
- Testing
- Lutein
- Where
- China
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Peking University
Biological Availability, Carotenoids
Bioavailability of Carotenoids From Orange Juice in a Cross-over Study in Healthy Subjects.
Commercially available fruit juices are obtained after applying industrial technologies to preserve and extend the shelf-life by inactivation of microorganism and enzymes. These are traditional thermal treatment (eg.
- Conditions
- Biological Availability, Carotenoids, Lutein, Humans
- Trial name
- NCT04744233
- Testing
- Orange juice
- Where
- 2 sites in Spain
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Instituto de Ciencia y Tecnología de Alimentos y Nutrición
Age-Related Macular Degeneration
Effect of Micronutrient Supplementation on the Intestinal Microbiota in Patients With Age-related Macular Degeneration - The Gut-Retina-axis Study
Age-related macular degeneration (AMD) is a leading cause of visual impairment in the elderly, characterized by multifactorial etiology.
- Trial name
- NCT06391411
- Testing
- a micronutrient mix containing lutein (10 mg), zeaxanthin (2 mg), saffron (20 mg), vitamin C (80 mg), vitamin E (12 mg) and zinc (10mg), anti-VEGF treatment
- Where
- Italy
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Azienda Ospedaliero-Universitaria Careggi
Eye Fatigue, Diet, Healthy
Lutein Supplementation in Healthy Children
This is a single site, randomized, double-blind placebo controlled parallel arm study assessing the effects of 6 months lutein supplementation on cognitive and visual outcomes in healthy children exposed to excessive digital…
- Conditions
- Eye Fatigue, Diet, Healthy, Cognitive Change
- Trial name
- NCT05314647
- Testing
- lutein
- Where
- United States
- Volunteers
- 59 people, healthy volunteers welcome
- Sponsor
- Northcentral University
Healthy Subjects
Lutein Absorption in Healthy Adults
This study will evaluate the absorption of lutein when consumed in different oil blends.
- Trial name
- NCT01730898
- Testing
- Study product containing lutein
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Abbott Nutrition
Carotid Atherosclerosis, Carotid Intimal Medial Thickness 1
Effects of Lutein Supplementation on Subclinical Atherosclerosis
This study is to investigate the possible positive effects of lutein and lycopene supplementation on early atherosclerosis in Beijing.
- Trial name
- NCT01534533
- Testing
- Lutein group, Combination group, Normal lutein control group
- Where
- China
- Volunteers
- 192 people, healthy volunteers welcome
- Sponsor
- Peking University
Age-Related Macular Degeneration
Effects of Goji vs. Fiber on Macular Degeneration
The goal of this project is to conduct a clinical trial in 60 participants ranging from age 65-95 who are at risk for age-related macular degeneration (AMD).
- Trial name
- GOJI (NCT06237127)
- Testing
- Goji berry, Fiber
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of California, Davis
Eye Health
Effects of Antioxidants on Human Macular Pigments
Age-related macular degeneration (AMD) is the leading cause of blindness in the United States. Low dietary intake or low blood levels of lutein and zeaxanthin, which are the only pigments found in the macular region of the human…
- Trial name
- NCT00718653
- Testing
- Lutein, Lutein plus green tea extract
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- National Eye Institute (NEI)
Raman Spectroscopy
Raman Scattering Spectroscopy to Measure Macular Pigment
This study will evaluate the ease and reliability of Raman scattering spectroscopy, a new technique to measure the amount of the pigment lutein in the retina, the light-sensitive tissue lining the back of the eye.
- Trial name
- NCT00060580
- Testing
- Raman scattering spectroscopy
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- National Eye Institute (NEI)
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
Carotenoids
Yellow Potatoes and Carotenoids
This study will assess the effects of daily intake of yellow and white potatoes on plasma lutein and zeaxanthin concentrations. Skin carotenoid levels will be assessed using the Veggie Meter.
- Trial name
- NCT07606001
- Testing
- Yellow-flesh potatoes, White-flesh potatoes
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Florida
Changes in Macular Pigment Optical Density
Regional Kale as Source of Lutein and Zeaxanthin to Improve Vision of AMD-patients
The age-related macular degeneration (AMD) is an age-dependent, multi-factorial disease. In Western industrial countries, it is the main cause of visual impairments. In Germany, approximately 4.5 million people suffer from AMD.
- Trial name
- KALESIGHT (NCT02136303)
- Testing
- S1: Dosage-dependency, S2: Kale extract versus kale purée, S3: Kale extract: AMD-patients
- Where
- Germany
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- University of Jena
Cognitive
To Evaluate the Efficacy of Lutemax 2020 on Vision and Cognitive Performance in Health Children.
To address the detrimental effects of the sudden rise in the use of digital devices leading to increased screen time, the present study will assess the efficacy of macular carotenoid supplementation Lutemax 2020 in young children
- Trial name
- NCT07355725
- Testing
- Lutemax 2020 gummies
- Where
- India
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Bioagile Therapeutics Pvt. Ltd.
Diabetic Retinopathy, Type 2 Diabetes
Enriched Eggs for Retina Health in Type 2 Diabetes
Diabetes mellitus has been declared a major public health issue. Among the complications of the disease, retinopathy can have a significant impact on mobility and quality of life for individuals living with diabetes.
- Trial name
- NCT04496817
- Testing
- Docosahexaenoic Acid and Lutein Enriched Eggs, Regular Eggs
- Where
- Canada
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of Manitoba