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ObesityNCT03948061

Cardiometabolic Effects of Sweet Cherry Juice

A study testing Cherry juice in people with Obesity and Metabolic Syndrome, run by USDA, Western Human Nutrition Research Center at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study aims to determine the effects of consuming sweet cherry juice on cardiovascular function, glucose regulation, and lipid status in overweight human subjects. The investigators hypothesize that sweet cherry juice consumption will improve metabolic and physiological status in overweight persons compared to a… Read more about this study

Who is it for?
Ages 20 to 65 yearsHealthy volunteers can take part
Conditions the study is for
Obesity, Metabolic Syndrome
What is being tested?
Cherry juice
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
4 participants
Where
1 siteUnited States
Study dates
1 Oct 2019to 25 Oct 2023
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 to 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Men aged 20 - 65 years
  • Post-menopausal women aged 45 - 65 years
  • Body Mass Index ≥25 and <40 kg/m2
  • Systolic blood pressure >120 and <140 mmHg or diastolic blood pressure >80 and <90 mmHg

Who cannot join

  • Diagnosed metabolic disorder
  • Diabetes mellitus
  • Thyroid disease
  • Cardiovascular disease
  • Poly-cystic ovary syndrome
  • Vasoconstrictive diseases (e.g. Raynaud's phenomenon or Raynaud's disease)
Show all 15Show fewer
  • Digestive disorder (e.g. Crohn's, irritable bowel syndrome, colitis)
  • History of gastrointestinal surgery affecting digestion and/or absorption
  • Use of medications for hypertension, hyperlipidemia, glycemic control, or weight loss
  • Use of medications such as steroids, statins, or non-steroidal anti-inflammatory agents
  • Routine use of over-the-counter medications
  • Weight change >5% in the past 6 months
  • Performing exercise greater than 60 minutes/day
  • Presence of a pacemaker or other internal electronic device controlling rhythm or pacing of heart excludes participant from MindWare procedure
  • Presence of atrial fibrillation or other arrhythmia excludes participant from MindWare procedure

Trial locations and contacts

1 site in 1 country.

United States1 site
  • USDA, ARS, Western Human Nutrition Research Center

    Davis, California, 95616

Other trials in United States

About this study

This study aims to determine the effects of consuming sweet cherry juice on cardiovascular function, glucose regulation, and lipid status in overweight human subjects. The investigators hypothesize that sweet cherry juice consumption will improve metabolic and physiological status in overweight persons compared to a placebo.

Read the detailed description

The investigators will conduct a randomized, cross-over study lasting 14 weeks and including 1 week for screening/enrollment, 1 week baseline assessment, and two intervention periods of 6 weeks each for the cherry juice and placebo interventions. Two test visits, 3 to 7 days apart, will occur before the start of intervention (baseline, or week 0) and then at weeks 6 and 12. Participants will be randomized to consume either the cherry juice or placebo beverage first, and will cross over to the alternate intervention immediately following the end of the first 6 weeks. Test Visit 1 will include measures of blood pressure, vascular tone, liver fat and stiffness, post-prandial metabolic response to the study beverage, cardiovascular activity and function, and nervous system control of cardiovascular activity and tone. Acute effects of study beverages will be measured, as will the chronic effects of study beverage consumption after 6 weeks. At Test Visit 2, participants will take a standard 75 gram oral glucose tolerance test (OGTT). Participants will be equipped with physiological monitoring devices, which will monitor cardiovascular activity and function and nervous system control of cardiovascular activity and tone, and continuously measure blood pressure. A series of cognitive function tasks will be administered, and a mental stress test will be conducted. The Test Visit 1 and 2 will be repeated at week 6 and week 12 following each intervention with cherry juice or the placebo beverage.

Being tested
Cherry juice, Placebo beverage
Keywords
cherries, inflammatory disease, chronic stress
Medical subject headings
Obesity, Metabolic Syndrome

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Cherry juiceOther

    FruitSmart® Cherry Concentrate: Dark Sweet Cherry Juice Concentrate produced from dark sweet cherries to retain the characteristic color and flavor of the whole fruit.

  • Placebo beverageOther

    Cherry flavored placebo beverage prepared from commercially available cherry syrup with food coloring and thickener to match the color and viscosity of the cherry concentrate.

Study groups in NCT03948061
Study groupRoleWhat they receive
Cherry juice followed by placeboExperimentalSweet cherry juice concentrate will be consumed twice daily for 6 weeks, followed by consumption of placebo beverage twice daily for 6 weeks.
Receives: Other: Cherry juice; Other: Placebo beverage
Placebo beverage followed by cherry juiceExperimentalPlacebo beverage will be consumed twice daily for 6 weeks, followed by consumption of sweet cherry juice concentrate twice daily for 6 weeks.
Receives: Other: Cherry juice; Other: Placebo beverage

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in systolic blood pressure

    Blood pressure measured using a Continuous Non-invasive Arterial Pressure (CNAP®) device in mmHg

    Measured: Week 0, 6 and 12

  2. Change in diastolic blood pressure

    Blood pressure measured using a Continuous Non-invasive Arterial Pressure (CNAP®) device in mmHg

    Measured: Week 0, 6 and 12

  3. Change in mean arterial blood pressure

    Blood pressure measured using a Continuous Non-invasive Arterial Pressure (CNAP®) device in mmHg

    Measured: Week 0, 6 and 12

  4. Change in heart rate variability

    Heart rate variability (HRV) assessed using a mobile device via ECG in millivolts

    Measured: Week 0, 6 and 12

  5. Change in cardiac parasympathetic control

    Assessed using impedance cardiography (ICG) and ECG

    Measured: Week 0, 6 and 12

  6. Change in electrical activity of heartbeat

    Assessed using electrocardiogram (ECG)

    Measured: Week 0, 6 and 12

Secondary outcomes (25)
  1. Change in vascular function

    Peripheral arterial tone (PAT) determined using the EndoPAT expressed as the reactive hyperemia index (RHI)

    Measured: Week 0, 6 and 12

  2. Change in liver stiffness

    Liver stiffness assessed from the shear wave speed with pulse echo ultrasound using the Fibroscan®

    Measured: Week 0, 6 and 12

  3. Change in liver fat

    Liver fat assessed from the Controlled Attenuation Parameter (CAP) computed from the liver stiffness measurement using the Fibroscan®

    Measured: Week 0, 6 and 12

  4. Change in executive function

    Assessed using Cambridge Gambling Task (CGT), from Cambridge Neuropsychological Test Automated Battery (CANTAB)

    Measured: Week 0, 6 and 12

  5. Change in attentive function

    Assessed using Stop Signal Task (STT) from CANTAB

    Measured: Week 0, 6 and 12

  6. Change in multitasking

    Assessed using Multitasking Test (MTT) from CANTAB

    Measured: Week 0, 6 and 12

  7. Change in psycho-motor speed

    Assessed using Reaction Time (RTI) task from CANTAB

    Measured: Week 0, 6 and 12

  8. Change in spatial memory

    Assessed using Spatial Working Memory (SWM) task from CANTAB

    Measured: Week 0, 6 and 12

  9. Change in verbal memory

    Assessed using Verbal Recognition Memory (VRM) task from CANTAB

    Measured: Week 0, 6 and 12

  10. Change in social cognition

    Assessed using Emotional Recognition task (ERT) from CANTAB

    Measured: Week 0, 6 and 12

  11. Change in peripheral insulin resistance (IR)

    Measured by Matsuda's sensitivity index

    Measured: Week 0, 6 and 12

  12. Change in hepatic insulin resistance (IR)

    Measured by homeostasis model assessment (HOMA)

    Measured: Week 0, 6 and 12

  13. Change in salivary cortisol in response to glucose tolerance test

    Salivary cortisol measured by enzyme-linked immunoassay in nmol/liter

    Measured: prior to and 120 minutes after glucose tolerance test

  14. Change in salivary cortisol in response to stress

    Salivary cortisol measured by enzyme-linked immunoassay in nmol/liter

    Measured: prior to and 30, 60, 90 and 120 minutes after challenging task

  15. Change in body weight

    Measured in kg

    Measured: Week 0, 6 and 12

  16. Change in waist circumference

    Measured in cm

    Measured: Week 0, 6 and 12

  17. Change in activity level

    Measured by Stanford Brief Physical Activity questionnaire. Scale is categorical for two subscales: work physical activity and leisure time activity.

    Measured: Week 0, 6 and 12

  18. Change in mitochondrial respiration

    Cellular bioenergetics measured as oxygen consumption rate (OCR)

    Measured: Week 0, 6 and 12

  19. Change in cardiovascular related biomarkers

    Quantitative immunoassay of human cardiovascular biomarkers on a multi-analyte profile

    Measured: Week 0, 6 and 12

  20. Change in inflammation related biomarkers

    Quantitative immunoassay of human inflammation biomarkers on a multi-analyte profile

    Measured: Week 0, 6 and 12

  21. Change in neurological related biomarkers

    Quantitative immunoassay of human neurological biomarkers on a multi-analyte profile

    Measured: Week 0, 6 and 12

  22. Change in perceived stress

    Perceived stress measured using the Perceived stress scale (PSS). Scores on the PSS can range from 0 to 40 with higher scores indicating higher perceived stress. Responses for individual questions are summed to a total score.

    Measured: Week 0, 6 and 12

  23. Change in chronic stress

    Chronic stress measured using the Wheaton Chronic Stress Questionnaire. Individual scores range from 0 to 102, with higher scores indicating higher chronic stress.

    Measured: Week 0, 6 and 12

  24. Change in self-reported sleep quality

    Sleep quality assessed by self-report using the Pittsburgh Sleep Quality Index

    Measured: Week 0, 6 and 12

  25. Change in mood

    Mood assessed using the Profile of Mood States (POMS) Standard Score. Total Mood Disturbance (TMD) score is found from the difference between "negative" subscales - "positive" subscales. Individual scores on the POMS range from -32 to 200 with higher scores indicating higher mood disturbance.

    Measured: Week 0, 6 and 12

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 May 2019
  2. Study start1 Oct 2019
  3. Primary completion25 Oct 2023
  4. Study completion25 Oct 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Crossover
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
4 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03948061
Sponsor's protocol ID
FL108
Status last verified
Oct 2023
First submitted
25 Apr 2019
Last updated
27 Oct 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Cherry juice in people with Obesity and Metabolic Syndrome, run by USDA, Western Human Nutrition Research Center at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 15 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 27 Oct 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in systolic blood pressure (time frame: Week 0, 6 and 12). The study lists 6 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Oct 2023.

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