Clinical trials: Polyphenols, open to volunteers
Mild Cognitive Impairment
The Effect of Combination of Mediterranean Diet and Oleocanthal in Patients With Mild Cognitive Impairment
BACKGROUND: Mild cognitive impairment (MCI) constitutes a form of preclinical dementia and characterizes a cognitive decline that exceeds what is expected for one's age and education status, but at the same time does not fulfill…
- Trial name
- MeDi-SUPOL (NCT06705738)
- Testing
- SUPOL, Dietary Pattern: MeDi
- Where
- 2 sites in Greece
- Volunteers
- 200 people
- Sponsor
- Aristotle University Of Thessaloniki
Obesity & Overweight, Healthy Adult
Vitis Intervention Trial in Substrate Metabolism
Obesity is associated with reduced metabolic flexibility (MetFlex), the capacity to shift between carbohydrate and lipid oxidation in response to nutrient availability.
- Trial name
- VITIS (NCT07800988)
- Testing
- Freeze-Dried Whole Grape Powder
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Vitamin b12, Supplementation During Endurance Performance
Effects of Vitamin B12 and Natural Orange Extract, and Their Combination on Physical and Mental Performance
The aim of this study was to determine the effects of a new formulation of vitamin B12, natural orange extract, and their combination on physical and mental performance.
- Conditions
- Vitamin b12, Supplementation During Endurance Performance, Flavonoids, Mental Fatigue
- Trial name
- MECHEPS (NCT07341789)
- Testing
- Vitamin B 12, Natural orange extract, Vitamina B12 + natural orange extract
- Where
- Spain
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Francisco Javier Martínez Noguera
Healthy Adults
Differential Absorption Kinetics of Grape Seed Extract Polyphenols
Grape seed extracts (GSEs) contain (poly)phenols that vary in their degree of polymerization, which may lead to differences in absorption, metabolism, and biological efficacy.
- Trial name
- GSE_PK (NCT07886385)
- Testing
- MN-BP Grape Seed Extract, Commercially Available Grape Seed Extract, Gen 2 GSE - Monomer-Enriched
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Clinical Nutrition Research Center, Illinois Institute of Technology
Cardiovascular Physiology
Effects of Tart Cherry and Aronia Extract Supplementation on Selected Physiological Parameters in Endurance-Trained Men
This study will evaluate the effects of four weeks of oral supplementation with a double-standardized tart cherry (Prunus cerasus) and aronia (Aronia melanocarpa) extract on cardiovascular regulation and exercise performance in…
- Trial name
- NCT07885098
- Testing
- Standardized Tart Cherry and Aronia Extract
- Where
- Poland
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Wroclaw Medical University
Type 2 Diabetes Mellitus (T2DM)
Polyphenol Metabotypes in People With Diabetes Type 2
This cross-sectional study seeks to characterize the overall polyphenol metabotype in patients with T2DM in comparison to age-matched individuals without diabetes.
- Trial name
- PPPIL (NCT06810635)
- Testing
- Oral Polyphenol Challenge Test / PPPIL, fasting blood sample, Fasting urine collection
- Where
- 2 sites in Belgium
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University Hospital, Ghent
Diabetes Mellitus Type 2
Medium-term Effects of a Polyphenol-rich Beverage Based on Red Grape Pomace Extract on Non-alcoholic Fatty Liver Disease, Cardiometabolic Risk Profile and Gut Microbiota in Subjects with Type 2 Diabetes
Nonalcoholic fatty liver disease (NAFLD) is a liver disease characterized by an abnormal accumulation of fat not due to alcohol or drug consumption that can evolve into steatohepatitis (NASH), fibrosis and cirrhosis.
- Trial name
- PoLiFat (NCT06895018)
- Testing
- Supplementation with Polyphenol Rich Drink
- Where
- Italy
- Volunteers
- 20 people
- Sponsor
- Federico II University
Liver Functions, Bioequivalence
Coffee Bioequivalence Trial
The goal of this clinical trial is to test if coffee consumed as a tablet is biologically equivalent to that consumed traditionally as a drink.
- Conditions
- Liver Functions, Bioequivalence, Cardiovascular Risk, Cardiometabolic Risk Markers
- Trial name
- NCT06758531
- Testing
- Instant coffee given as a drink, Coffee given in a tablet form
- Where
- United Kingdom
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- University of Reading
Lacunar Stroke
A Multicenter Randomized Clinical Trial Compared With Standard Clinical Practice to Evaluate the Efficacy of a Polyphenol-rich Salicornia Extract in the Progression of Cognitive Decline in a Cohort of Patients With Lacunar Infarcts (SALACUNAR)
SALACUNAR (LACI-2-polyphenols) is a multi-center randomized controlled trial (RCT) to evaluate the effect of a polyphenol-rich supplement on small vessel neurovascular disease.
- Trial name
- SALACUNAR (NCT07353424)
- Testing
- B-salicornia
- Where
- Spain
- Volunteers
- 300 people
- Sponsor
- Fundación Pública Andaluza para la gestión de la Investigación en Sevilla
Acute Coronary Syndromes, Unstable Angina (UA)
Oregano and Basil Leaves and Coronary Artery Disease
The present study will examine the effects of increasing dietary polyphenol intake by consumption of oregano and basil leaves, on plasma inflammatory and lipid factors and total urinary polyphenol levels in patients who have…
- Trial name
- NCT07123181
- Testing
- Control (Standard treatment), Higher polyphenol intake by consumption of oregano and basil
- Where
- Iran
- Volunteers
- 70 people
- Sponsor
- Shahid Beheshti University of Medical Sciences
Nutrition, Absorption
Bioavailability From Chickpea Meals in Ileostomists?
The matrix of a food can significantly affect how well humans can absorb and use nutrients. Plants like fruits, vegetables, nuts, grains, and legumes have cell walls that form a network around their cells.
- Conditions
- Nutrition, Absorption, Polyphenolic Compounds and Metabolism, Polyphenols Absorption Profile
- Trial name
- NCT06921811
- Testing
- Intact chickpeas, Broken chickpeas
- Where
- United Kingdom
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- University of Ulster
Healthy
De-stressing the Brain: Can Eating Grapes During Periods of Mental Stress Protect Brain and Vascular Health in Young Adults
The main aim of the current study is to investigate whether consuming grapes rich in flavonoids just before mental stress can protect cerebrovascular and peripheral vascular function, mood and cognition, from the negative effects…
- Trial name
- NCT06923722
- Testing
- High-flavonoid grape intervention, Low-flavonoid grape intervention
- Where
- United Kingdom
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- University of Birmingham
Healthy Adult Participants, ADME
Exploration of Potential Biomarkers of Polyphenol Intake From Artichoke By-product Supplements
The bioavailability study analyzes the absorption, distribution, metabolism, and excretion (ADME) processes of the polyphenols under study (HCAs).
- Conditions
- Healthy Adult Participants, ADME, Polyphenols Absorption Profile, Polyphenolic Compounds and Metabolism
- Trial name
- ARTI-UP ADME (NCT07615673)
- Testing
- Single intake of a supplement derived from artichoke by-products
- Where
- Spain
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Iziar Amaia Ludwig Sanz Orrio
Bioavailability
Bioavailability of Ration Items Containing Tart Cherry Extract
To determine how consuming food items containing shelf-stored tart cherry impacts your body's ability to absorb and use the compounds within tart cherry.
- Trial name
- Tart Cherry (NCT07063173)
- Testing
- Fruit Bar, Powdered Drink, Commercially available 100% tart cherry juice
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- United States Army Research Institute of Environmental Medicine
Vaginal Microbiome, Gut Microbiome
The Effect Cranberry-Based Products on the Female Microbiome
The overall objective of this clinical trial is to compare the effects of a cranberry-based product to a placebo-control product on vaginal and GI microbiome outcomes and associated participant reported outcomes in generally…
- Conditions
- Vaginal Microbiome, Gut Microbiome, Gut Health
- Trial name
- NCT07109713
- Testing
- Active
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Ocean Spray Cranberries, Inc.
Healthy
Adding Polyphenol-rich Pulses to Daily Diet Improves Skin Health by Reshaping the Skin Microbiome
Skin health is influenced by the microbiome, lipids, oxidative stress, inflammation, and UV exposure. A 12-week trial with 48 women aged 45-65 will test if polyphenol-rich pulses improve skin health by affecting these factors.
- Trial name
- NCT06538415
- Testing
- Pulse Diet, Control Rice Diet
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of Florida
Zinc Absorption, Iron Absorption
Zinc and Iron Absorption From Common Beans in Young Adult Women
Fifteen female study participants will be enrolled in a randomized crossover study to measure fractional and total zinc and iron absorption from four common bean (Phaseolus vulgaris) varieties with varying phytate and…
- Trial name
- NCT06327529
- Testing
- SER 118, LMP 1001, LPA 586
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- University of California, Davis
Polyphenols, Cancer Vaccine
a Polyphenol Whole Tumor Cell Vaccine in Patients With Advanced Malignant Solid Tumors
This project intends to carry out phase I clinical studies on the basis of the previous work, initially exploring the possible effective dose, evaluating its safety and tolerability, with a view to achieving long-term control of…
- Conditions
- Polyphenols, Cancer Vaccine, Advanced Solid Tumor
- Trial name
- NCT06878612
- Testing
- Polyphenol whole tumor cell vaccine
- Where
- China
- Volunteers
- 9 people
- Sponsor
- Xingchen Peng
Mild Cognitive Impairment (MCI)
Effects of Hydroxytyrosol-Rich Olive Polyphenol Dietary Supplement Combined With Mediterranean Diet Adherence on the Cognitive Health of Patients With Mild Cognitive Impairment
Nutrition is an important modifiable risk factor of human cognitive health. Increasing data suggests that certain nutrients or food ingredients, such as plant polyphenols, have the potential to benefit cognitive abilities even in…
- Trial name
- MEDIPHENO-HT (NCT07672938)
- Testing
- Low-Dose Hydroxytyrosol-Rich Olive Juice Polyphenol Supplement, High-Dose Hydroxytyrosol-Rich Olive Juice Polyphenol Supplement
- Where
- Greece
- Volunteers
- 141 people
- Sponsor
- Panhellenic Federation of Alzheimer's Disease and Related Disorders
ADHD - Attention Deficit Disorder With Hyperactivity
Study of the Nutritional, Inflammatory, and Metabolic Endophenotypes of Attention-Deficit/Hyperactivity Disorder (ADHD)
This study aims to better understand the biological mechanisms involved in attention deficit hyperactivity disorder (ADHD) and to clarify why some children and adolescents respond well to methylphenidate (MPH)-the most commonly…
- Trial name
- ANIME (NCT07417878)
- Testing
- Clinical and Biological Evaluation - ADHD Cases, Clinical and Biological Evaluation - Controls
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- University Hospital, Montpellier