- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04421950
The Blueberry Study
January 31, 2024 updated by: Arkansas Children's Hospital Research Institute
Plasma and Urine Profiles of Blueberry Derived Polyphenols After a Short Term Intervention With Blueberry in Children With Typical Low Fruit and Vegetable Consumption.
This is a research study about the effects of blueberries on the health of children who do not eat much fruits and vegetables.
By doing this study, we hope to find out what nutrients from blueberries appear in the blood and urine of the child
Study Overview
Status
Active, not recruiting
Conditions
Intervention / Treatment
Detailed Description
This is a double blinded randomized control trial aiming to characterize the profile of polyphenol-derived metabolites in plasma and urine for children ages 11-12 years supplemented short term with wild blueberry powder.
The study will assess if a short-term supplementation (5 days) with wild blueberry powder impacts immune responses as well as markers for cardiovascular and bone health.
Up to 44 children will be recruited.
The participants will attend three visits at Arkansas Children's Nutrition Center.
Study Type
Interventional
Enrollment (Actual)
44
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: Jill A Gassaway, BS
- Phone Number: 5013643309
- Email: acncstudies@archildrens.org
Study Contact Backup
- Name: Ashton Adkison, BS
- Phone Number: 5013643309
- Email: acncstudies@archildrens.org
Study Locations
-
-
Arkansas
-
Little Rock, Arkansas, United States, 72202
- Arkansas Children's Nutrition Center
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
11 years to 12 years (Child)
Accepts Healthy Volunteers
Yes
Description
Inclusion Criteria:
- Eats <1.5 cup of fruit and <2.0 cup of vegetables per day
- Boys or girls
- All ethnicities
- All BMIs
Exclusion Criteria:
- Known allergy to blueberries
- Epilepsy
- Asthma
- Chronic kidney disease
- Hormonal disease
- Autoimmune disease
- Bleeding disorders
- Chronic infections
- Type 2 and Type 1 diabetes mellitus
- Attention deficit hyperactivity disorder
- Opposition defiant disorder
- Autistic spectrum disorder
- Pre-existing medical conditions or medications as determined by the investigators to affect the outcomes of interest
- If the participants/parents perceive barriers with adhering to low-polyphenol meals
- Parent or child refusal to stop nutritional supplements
- Parent or child refusal to have blood drawn
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Wild Blueberry Supplement
30 grams of wild blueberry powder per day in foods items provided to them
|
Foods that contain wild blueberry supplement to deliver up to 30 grams of blueberry powder
|
Placebo Comparator: Placebo supplement
Food items will be provided to them without the wild blueberry power.
|
Foods that do not contain the blueberry powder but a placebo
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Plasma and urine levels of blueberry derived polyphenols and their metabolites
Time Frame: up to 2 weeks
|
Blood will be collected twice following an overnight fast.
Twelve-hour urine will be collected twice by participants at home.
Plasma and urine samples will be analyzed using mass spectrometry to identify blueberry-derived polyphenols and their levels
|
up to 2 weeks
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
T-lymphocyte responsiveness to immune stressors
Time Frame: up to 2 weeks
|
Blood will be collected following an overnight fast after 5 days on the intervention.
Whole blood will be cultured and cells stressed with E. coli lipopolysaccharide (LPS) to induce cytokine release from immune cells.
Cytokines will be assayed using electrochemiluminescence based detection platform with multiplexed immunoassays, and their levels compared between study groups.
|
up to 2 weeks
|
Endothelial function by brachial artery flow mediated dilation
Time Frame: up to 2 weeks
|
Endothelial-dependent flow-mediated vasodilation of the brachial artery will be measured using high resolution ultrasound at enrollment and after 5 days on the intervention.
This technology uses sound waves (ultrasound) to visualize the diameter of the brachial artery.
A baseline image of the brachial artery will be recorded at rest.
A blood pressure cuff will be placed around the lower arm and the cuff will be inflated to 50 mmHg above systolic pressure for 5 minutes, followed by rapid deflation of the cuff.
The diameter of the brachial artery will be measured from ultrasound images captured throughout the 8 minute recording protocol.
The percent change in the brachial artery will be compared between and within groups.
|
up to 2 weeks
|
Number and percentage of lymphocytes cluster of differentiation 4 (CD4), lymphocytes cluster of differentiation 8 (CD8) and natural killer (NK) cells
Time Frame: up to 2 weeks
|
Mitogen stimulated blood will be stained with combinations of fluorochrome-labeled antibodies and analyzed by flow cytometry.
Absolute and relative number of CD4, lymphocytes CD8 and natural killer (NK) will be compared between groups.
|
up to 2 weeks
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
April 23, 2021
Primary Completion (Actual)
September 1, 2023
Study Completion (Estimated)
December 20, 2024
Study Registration Dates
First Submitted
May 26, 2020
First Submitted That Met QC Criteria
June 4, 2020
First Posted (Actual)
June 9, 2020
Study Record Updates
Last Update Posted (Estimated)
February 1, 2024
Last Update Submitted That Met QC Criteria
January 31, 2024
Last Verified
January 1, 2024
More Information
Terms related to this study
Other Study ID Numbers
- 260493
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Healthy
-
Prevent Age Resort "Pervaya Liniya"RecruitingHealthy Aging | Healthy Diet | Healthy LifestyleRussian Federation
-
Maastricht University Medical CenterCompletedHealthy Volunteers | Healthy Subjects | Healthy AdultsNetherlands
-
Yale UniversityNot yet recruitingHealth-related Benefits of Introducing Table Olives Into the Diet of Young Adults: Olives For HealthHealthy Diet | Healthy Lifestyle | Healthy Nutrition | CholesterolUnited States
-
Hasselt UniversityRecruitingHealthy | Healthy AgingBelgium
-
Galera Therapeutics, Inc.Syneos HealthCompleted
-
Galera Therapeutics, Inc.Syneos HealthCompletedHealthy | Healthy VolunteersAustralia
-
University of PennsylvaniaActive, not recruitingHealthy | Healthy AgingUnited States
-
Chalmers University of TechnologyGöteborg UniversityCompletedHealthy | Nutrition, HealthySweden
-
University of ManitobaNot yet recruitingHealthy | Healthy Diet
Clinical Trials on Wild blueberry containing foods
-
University of ReadingNaurex, Inc, an affiliate of Allergan plcCompletedCognitive DeclineUnited Kingdom
-
University of Prince Edward IslandCompleted
-
University of ReadingWild Blueberry Association of North America (WBANA)RecruitingDepression | Anhedonia | AnxietyUnited Kingdom
-
University of ReadingWild Blueberry Association of North America (WBANA)CompletedMood | Cognition | AffectUnited Kingdom
-
Atlantic Food and Horticulture Research CenterCompleted
-
University of ReadingWild Blueberry Association of North America (WBANA)Completed
-
King's College LondonUniversity of ReadingCompleted
-
King's College LondonUniversity of ReadingCompletedHealthy | Healthy AgingUnited Kingdom
-
DuPont Nutrition and HealthBioFortisCompletedGenerally Healthy Kids Consumption Soy Protein Foods as Part of Daily DietUnited States
-
Monsanto Company, LLCSolae, LLCCompletedHealthy Volunteers | Markers of Cardiovascular RiskUnited States