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Healthy ElderlyNeurophenolNCT02063646

Effect of a Polyphenol-rich Food Supplement on Cognitive Function in Healthy Aging Adults

A study testing Polyphenol-rich extract in people with Healthy Elderly, run by Neurophenols Consortium at 2 sites in 2 countries.

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

Several preliminary studies have shown that diet can have beneficial effects on cognitive decline. Among food shown to have such effects are some polyphenols from selected botanicals. Read more about this study

Who is it for?
Ages 60 to 70 yearsHealthy volunteers can take part
Conditions the study is for
Healthy Elderly
What is being tested?
Polyphenol-rich extract
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
204 participants
Where
2 sitesin 2 countries
Study dates
Feb 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 60 to 70 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Independent subjects, living at home;
  • Body Mass Index (BMI) 20-30 kg/m2 (limits included);
  • 26 < MMSE score ≤ 29
  • Logical memory subtest of the Wechsler Memory Scale (16-69 years battery) sub-scores complying with the following:
  • Immediate recall score < 29;
  • Delayed recall score < 16;

Who cannot join

  • Evidence of actual major depressive disorder according to the module A of the Mini International Neuropsychiatric Interview (MINI);
  • Subject consuming food supplements likely to have an effect on memory;
  • High physical activity practice;
  • Restrictive or unbalanced diet (hypocaloric, vegetarian, vegan, …) self-declared at V0;
  • Diabetes;
  • Cardiovascular disease diagnosed within less than 2 years, with the following exceptions: subjects with controlled (medicated) high blood pressure and/ or controlled (medicated) can be included;
Show all 17Show fewer
  • Personal history of Cerebrovascular Accident (CVA);
  • Unbalanced thyroid disease;
  • Anti-depressant treatment stopped since less than 3 months or still ongoing;
  • Personal history of schizophrenia or other psychiatric disorders;
  • Ongoing neuroleptic treatment;
  • Uncorrected visual or auditory dysfunction (according to the volunteer's self-declaration);
  • History of moderate to severe traumatic brain injury and / or intracranial surgery;
  • Life threatening pathology (such as cancer) in remission for less than 1 year or still ongoing;
  • General anesthesia in the last 6 months or planned in the next 6 months;
  • Documented food allergy(ies), namely to one of the components of the study product;
  • Psychological or linguistic incapability to sign the informed consent.

Trial locations and contacts

2 sites in 2 countries.

2 sites in 2 countries

Canada1 site
  • INAF (Institute of nutrition and functionnal foods)

    Québec, Quebec, G1V 0A6

Other trials in Canada

France1 site
  • Biofortis

    Saint-Herblain, 44800

Other trials in France

About this study

Official title: Effect of a Polyphenol-rich Food Supplement on Cognitive Function in Healthy Aging Adults: Randomized, Placebo-controlled, Double-blind Clinical Trial

Several preliminary studies have shown that diet can have beneficial effects on cognitive decline. Among food shown to have such effects are some polyphenols from selected botanicals.

Preclinical studies have concluded that polyphenols play a role in moderation of oxidative stress and inflammation, increased neuronal signaling, and improved metabolic function among other effects. Noteworthy, a positive and statistically significant association between the midlife level of polyphenol intake and cognitive function assessed 13 years later was found in a cohort of 2574 adults.

Read more

Several mechanisms may be involved in these positive effects of food polyphenols on cognitive function in older adults: experimental studies suggest that polyphenols display neuroprotective effects, enhancement of the neuronal function, stimulation of brain flow and inducing neurogenesis, and might prevent age-related damage to the central nervous system through their antioxidant and anti-inflammatory activities.

Based on these promising results, a food supplement from botanicals offering complementary polyphenol profile was developed. This food supplement is aimed to aid at maintenance of cognitive function in older adults.

Read the detailed description

This project aims to investigate the effects of 6 months supplementation with a polyphenol-rich supplement vs. placebo to consume daily on human cognitive function. Polyphenol-rich supplement and placebo will be provided as capsules matched for appearance.

The study will be conducted as a randomized, double-blind, parallel-groups (2 arms) placebo-controlled, multicentre interventional design. Two groups, each of 102 volunteers, are studied. One group of volunteers will consume the polyphenol-rich product while the other one will consume the placebo product.

Each volunteer will be seen for 3 visits at the investigational site, will have 2 follow-up calls and mid-term dietary survey. Baseline and follow-up visit will include cognitive assessment with the CANTAB battery. CANTAB tests will cover several aspects of memory: visio-spatial learning and episodic memory, verbal recognition memory and visio-spatial working memory. Moreover, psychological and mood components will be evaluated (mnesic complaint, depression, fatigue). Physical activity and food habits will also be recorded. Finally, biological parameters will be assessed (lipid profile, glycemia, insulinemia, CRPus, thyroid stimulating hormone, transthyretin, plasma level of phenolic compounds).

Conditions
Healthy Elderly
Being tested
Polyphenol-rich extract, Placebo
Keywords
polyphenols, memory, elderly

What participants receive

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

  • Polyphenol-rich extractDietary supplement

    Two groups, each of 102 volunteers, are studied. For 24 weeks, one group of volunteers will consume the active product (polyphenol-rich extract) while the other one will consume the placebo product.

  • PlaceboDietary supplement

    The placebo is a capsule with same appearance and organoleptic properties as the active product, containing no active component.

    Two groups, each of 102 volunteers, are studied. For 24 weeks, one group of volunteers will consume the active product (polyphenol-rich extract) while the other one will consume the placebo product.

Study groups in NCT02063646
Study groupRoleWhat they receive
PlaceboPlacebo comparatorThe placebo is a capsule with same appearance and organoleptic properties as the active product, containing no active component. Dose: 2 capsules per day, one capsule at least 1 hour after breakfast and one capsule at least one hour after dinner, with a glass of water.
Receives: Dietary Supplement: Placebo
Polyphenol-rich extractExperimentalThe test product is a food supplement named Neurophenol. It is presented as a hard-shell capsule containing polyphenol-rich extracts. Dose: 2 capsules per day, one capsule at least 1 hour after breakfast and one capsule at least one hour after dinner, with a glass of water.
Receives: Dietary Supplement: Polyphenol-rich extract

What is being measured

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

  1. CANTAB - Paired Associate Learning test (PAL)

    Measured: 24 weeks

Secondary outcomes (8)
  1. CANTAB - Verbal Recognition Memory (VRM)

    Measured: 24 weeks

  2. CANTAB - Spatial Span test (SSP)

    Measured: 24 weeks

  3. CANTAB - Reverse Spatial Span test (Reverse SSP)

    Measured: 24 weeks

  4. Wechsler Memory Scale - Logical memory subtest

    Measured: 24 weeks

  5. McNair scale

    Measured: 24 weeks

  6. Geriatric Depression Scale

    Measured: 24 weeks

  7. Mini-Mental State Examination

    Measured: 24 weeks

  8. Multidimensional Fatigue Inventory (MFI-20)

    Measured: 24 weeks

Timeline

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

  1. First posted14 Feb 2014 (estimated)
  2. Study startFeb 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
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
204 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02063646
Sponsor's protocol ID
INAF-2012-242
Acronym
Neurophenol
Status last verified
Oct 2014
First submitted
12 Feb 2014
Last updated
27 May 2015
Results posted
No
Data monitoring committee
No

Publications

  • Krikorian R, Boespflug EL, Fleck DE, Stein AL, Wightman JD, Shidler MD, Sadat-Hossieny S. Concord grape juice supplementation and neurocognitive function in human aging. J Agric Food Chem. 2012 Jun 13;60(23):5736-42. doi: 10.1021/jf300277g. Epub 2012 Apr 9.

    PubMed 22468945
  • Kesse-Guyot E, Fezeu L, Andreeva VA, Touvier M, Scalbert A, Hercberg S, Galan P. Total and specific polyphenol intakes in midlife are associated with cognitive function measured 13 years later. J Nutr. 2012 Jan;142(1):76-83. doi: 10.3945/jn.111.144428. Epub 2011 Nov 16.

    PubMed 22090468
  • Rossi L, Mazzitelli S, Arciello M, Capo CR, Rotilio G. Benefits from dietary polyphenols for brain aging and Alzheimer's disease. Neurochem Res. 2008 Dec;33(12):2390-400. doi: 10.1007/s11064-008-9696-7. Epub 2008 Apr 16.

    PubMed 18415677
  • Spencer JP, Vauzour D, Rendeiro C. Flavonoids and cognition: the molecular mechanisms underlying their behavioural effects. Arch Biochem Biophys. 2009 Dec;492(1-2):1-9. doi: 10.1016/j.abb.2009.10.003. Epub 2009 Oct 12.

    PubMed 19822127
  • Vauzour D, Vafeiadou K, Rodriguez-Mateos A, Rendeiro C, Spencer JP. The neuroprotective potential of flavonoids: a multiplicity of effects. Genes Nutr. 2008 Dec;3(3-4):115-26. doi: 10.1007/s12263-008-0091-4.

    PubMed 18937002

Questions about this trial

What is this clinical trial studying?

A study testing Polyphenol-rich extract in people with Healthy Elderly, run by Neurophenols Consortium at 2 sites in 2 countries.

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 6 inclusion and 17 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 May 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Canada, France. 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?

CANTAB - Paired Associate Learning test (PAL) (time frame: 24 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02063646, which also lists 5 linked publications.

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 May 2015.

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