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Effect of Omega-3 LCPUFA Intervention on Learning, Cognition, Behaviour and Visual Processing.

5. april 2017 opdateret af: Dr. Renate de Groot, Open University

Food2Learn: Effect of Omega-3 LCPUFA Intervention on Learning, Cognition, Behaviour and Visual Processing.

The brain is primarily developed in the third trimester of pregnancy, but continues maturing through the late twenties, especially the prefrontal cortex. Omega-3 long-chain polyunsaturated fatty acids (LCPUFA) are important structural components of neural cell membranes, influence membrane fluidity and signal transduction, and thus learning, cognition and behaviour. Levels of omega-3 LCPUFA have been found to be low in individuals with limitations in these complex brain functions. Previous studies suggested that such functions could be improved by increasing LCPUFA. The adolescent brain, however, has been largely neglected. This study investigates the effect of one-year daily omega-3 LCPUFA supplementation, in particular krill oil, in healthy 14-15 year old adolescents in lower general secondary education (MAVO/VMBO) on learning, cognition, and behaviour. The majority of the omega-3 PUFA in krill oil is incorporated into phospholipids, favouring tissue uptake of its omega-3 PUFA. In a double blind, randomised controlled trial, 300 adolescents preselected from a population of 700 adolescents with low omega-3 index (<5%) will receive daily omega-3 LCPUFA supplementation or matching placebo. The omega-3 LCPUFA dose will be adjusted individually to reach a target level of 8-11%. The effects on learning (academic achievement, objective cognitive performance), behaviour (mood, self-esteem, motivation, goal-orientation, absenteeism), and in a subsample cognitive processes, in particular perceptual processes measured by eye-tracking will be evaluated after 6, 12, and 24 months. This study will yield important insights in the effects of omega-3 LCPUFA supplementation, a safe intervention, on a large variety of complex brain functions.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

266

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Holland
      • Geldrop, Holland
        • Stabrecht College
      • Geleen, Holland
        • Graaf Huyn College
      • Gulpen, Holland
        • Scholengemeenschap Sophianum
      • Heerlen, Holland
        • Citaverde
      • Heerlen, Holland
        • Grotius College
      • Heerlen, Holland
        • Sintermeertencollege
      • Kerkrade, Holland
        • Beroepscollege Holz
      • Panningen, Holland
        • Bouwens van der Boijecollege
      • Sittard, Holland
        • DaCapo College
      • Valkenburg, Holland
        • Stella Maris College
      • Venlo, Holland
        • Colllege Den Hulster
    • Brabant
      • Breda, Brabant, Holland
        • De Nassau
      • Breda, Brabant, Holland
        • Graaf Engelbrecht
      • Breda, Brabant, Holland
        • Newman College
    • Gelderland
      • Nijmegen, Gelderland, Holland
        • Canisius College
    • Limburg
      • Roermond, Limburg, Holland
        • MAVO Roermond
    • Noord Brabant
      • Helmond, Noord Brabant, Holland
        • Dr.Knippenberg College

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

13 år til 15 år (Barn)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Healthy adolescents aged 14-15 years.
  • In lower general secondary education (MAVO/VMBO).

Exclusion Criteria:

  • Suffering from hemophilia (blood clotting disorder).
  • Allergic to (shell)fish.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Grundvidenskab
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Dobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Aktiv komparator: Krill oil capsules

Capsules containing krill oil rich in omega-3 fatty acid's.

Dietary supplements (krill oil) are provided by Aker BioMarine Antarctic AS equalling almost the daily recommended amount of 450 mg of EPA/DHA intake per day.

Addendum 25-4-2016: In the Original protocol a dose adjustment after 3 months according to Omega-3 Index was to be executed. As no participant achieved the target Omega-3 Index the dosage was adjusted to 800mg DHA + EPA per day for all participants. The also led to the decision to increase the starting dosage of cohort II to 800mg DHA+ EPA.
Kosttilskud: Krill oil capsules
1 year supplementation with Krill oil provided by Aker BioMarine Antarctic AS equalling almost the daily recommended amount of 450 mg of EPA/DHA intake per day.
Placebo komparator: Placebo
Capsules containing a fatty acid mixture that reflects the fatty acid composition of the average European diet.
Kosttilskud: Placebo
Capsules containing a fatty acid mixture that reflects the fatty acid composition of the average European diet.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Cognitive performance
Tidsramme: 12 months
Neuropsychological tests covering seceral executive functions (LDST, D2, CST, Stroop, Digit Span).
12 months

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Eye tracking
Tidsramme: 12 months
Two types of eye tracking parameters will be calculated, namely basic parameters and paragraph-related parameters. Basic parameters are number of blinks, number of fixations, total duration of fixations, average fixation duration, average dispersion of fixation positions, average saccadic amplitude, and average saccadic velocity. Moreover, we will calculate eye tracking measures per paragraph, namely time spent on each paragraph (number and duration of fixations), time elapsed until first looking at a paragraph, and amount of times going back to a paragraph (revisits).
12 months
Academic achievement
Tidsramme: 12 months
Grade point average for Dutch, English and mathematics and standardized mathematics test scores (AMN).
12 months
Behaviour: absenteeism, motivation (MSLQ), Mood (CES-D), Self-esteem
Tidsramme: 12 months
Absenteeism, motivation (MSLQ), Mood (CES-D), Self-esteem
12 months
Sleep duration and sleep quality
Tidsramme: 12 months
Sleep duration measured using ActivPAL and diary, Sleep quality determined using the adolescent sleep wake scale (ASWS) and the adolescent sleep hygiene scale (ASHS).
12 months

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Open University

Samarbejdspartnere

Netherlands Organisation for Scientific Research
Aker Biomarine Antarctic AS
Omegametrix GmbH
Metrisquare

Efterforskere

  • Ledende efterforsker: Renate de Groot, PhD, Open University

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Hjælpsomme links

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. januar 2014

Primær færdiggørelse (Faktiske)

1. marts 2016

Studieafslutning (Faktiske)

1. august 2016

Datoer for studieregistrering

Først indsendt

5. september 2014

Først indsendt, der opfyldte QC-kriterier

12. september 2014

Først opslået (Skøn)

15. september 2014

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

6. april 2017

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

5. april 2017

Sidst verificeret

1. april 2017

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Andre undersøgelses-id-numre

  • Food2Learn
  • 13-T-115 (Anden identifikator: METC Atrium-Orbis-Zuyd)

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med Kognitiv funktion

Kliniske forsøg med Krill oil capsules

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