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Cognitive PerformanceNCT02243956

Effects on Cognitive Functions and Mood of Food Products Rich in Polyphenols

A study testing Flavanol rich food product in people with Cognitive Performance and Mood, run by Lund University at 1 site in Sweden.

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

The purpose of this study is to investigate effects of a selected food product rich in polyphenol on cognitive performance and mood. Read more about this study

Who is it for?
Ages 50 to 70 yearsHealthy volunteers can take part
What is being tested?
Flavanol rich food product
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
38 participants
Where
1 siteSweden
Study dates
Jan 2014to Mar 2015
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 50 to 70 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Healthy women and men
  • Between 50-70 years
  • BMI 19-25

Who cannot join

  • Metabolic diseases
  • Food allergies
  • Smoker

Trial locations and contacts

1 site in 1 country.

Sweden1 site
  • Lund Univercity, Medicon village, Functional Food Science Centre

    Lund, 223 81

Other trials in Sweden

About this study

Official title: Food Design for Improved Cognitive Performance/Effects on Cognitive Functions and Mood of Food Products Rich in Polyphenols

The purpose of this study is to investigate effects of a selected food product rich in polyphenol on cognitive performance and mood.

Read the detailed description

The metabolic syndrome (MetS) includes a cluster of dysfunctions that identifies subjects at risk of developing type-2 diabetes and cardiovascular disease (CVD). A key feature appears to be chronic increased inflammation and activation of the innate system. Consequently, increased low-grade inflammation has been connected to adverse effects on insulin sensitivity, glucose- and lipid metabolism, and blood pressure, and circulating markers of inflammation such as IL-6. A growing body of evidence also link low-grade inflammation to poorer cognitive functioning. Type 2 diabetes, MetS, and glucose intolerance are increasingly being associated with impaired cognition.

Dietary patterns which promote sub-clinical inflammation are increasingly being considered predictive of future risk of CVD and type-2 diabetes. Epidemiological data shows that a high consumption of vegetables and fruits is associated with a lowered risk of cancer and cardiovascular disease, which may be due to the high concentrations of polyphenols or other anti-oxidants that are found in such foods.

In the presently described project it is hypothesized that four weeks daily consumption of a product specific high in flavanols can improve metabolic risk variables and cognitive functions in healthy subjects.

The purpose is therefore to investigate effects of flavanols on cognitive functions and cardiometabolic risk, and to investigate relations between cardiometabolic risk markers and cognitive performance. The test product is a commonly used food product, known to be specifically rich in flavanols. The effects of the test product is compared with effects of a control product that is based on a similar food product but is lacking flavanols.

Test parameters:

Cognitive tests: Working memory tests (an oral test), selection attention test (measure also reaction time, a computerized test ), and stroop test (a computerized test.

Mood is determined for 6 different mood sensations using VAS scales.

Bio markers in blood: glucose regulation (glucose, insulin), markers of inflammation and oxidative stress (IL-6, MDA, oxLDL), blood lipids (total cholesterol, LDL-cholesterol, HDL-cholesterol, triglycerides), vascular function (P-Selectin, PAI-1, NO), gut hormones involved in metabolism and satiety (PYY, GLP-1) gut hormon involved in mucosa integrity (GLP-2), markers of brain function (BDNF, neurotensin).

Blood pressure.

Being tested
Flavanol rich food product

What participants receive

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

  • Flavanol rich food productOther

    polyphenol rich test product

Study groups in NCT02243956
Study groupRoleWhat they receive
Flavanol rich food productExperimentalA portion of a common flavanol rich food product is consumed daily for 4 weeks
Receives: Other: Flavanol rich food product
Non-flavanol food productPlacebo comparatorA portion of a product similar to the experimental Product, but instead contains low amounts of flavanol, is consumed Daily for 4 weeks as a control.
Receives: Other: Flavanol rich food product

What is being measured

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

  1. working memory (WM) capacity

    The test food product or control is consumed fasting, and after 30 min a standardised breakfast is served. WM tests are performed at 60 min, 120 min, 165 min and 210 min after commencing the intake of test Product. One test takes approximately 8 min to carry out.

    Measured: Each of the two intervention periods is 4 weeks. At the first and last day in each intervention periods, working memory capacity is determined four times in the postprandial phase up to 3.5h after breakfast.

Secondary outcomes (1)
  1. mood assessment

    Self-reported sensations of mood and feelings of activation was assessed with a modified bipolar variant of the Swedish Core Affect Scales (SCAS) comprising six rating scales of two orthogonal dimensions of core affect: valence (unpleasantness-pleasantness) and activation (quietness-excitement).

    Mood scales are filled out at fasting, prior to the standardised breakfast served after 30 min and directly after cognitive tests started at 60 min, 120 min, 165 min and 210 min after commencing the intake of test product.

    Measured: Each of the two intervention periods is 4 weeks. At the first and last day in each intervention periods, subjects registered mood sensations at fasting and five times in the postprandial phase up to 3,5h after breakfast.

Timeline

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

  1. First posted18 Sep 2014 (estimated)
  2. Study startJan 2014
  3. Primary completionMar 2015
  4. Study completionMar 2015

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
Prevention
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
38 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02243956
Sponsor's protocol ID
AFC-2013/619
Status last verified
Sep 2017
First submitted
10 Sep 2014
Last updated
8 Sep 2017
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing Flavanol rich food product in people with Cognitive Performance and Mood, run by Lund University at 1 site in Sweden.

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 3 inclusion and 3 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 8 Sep 2017. 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 Sweden. 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. Some participants in this study may receive a placebo. 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?

working memory (WM) capacity (time frame: Each of the two intervention periods is 4 weeks. At the first and last day in each intervention periods, working memory capacity is determined four times in the postprandial phase up to 3.5h after breakfast.). 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 8 Sep 2017.

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