NCT02199808

Brief Summary

Purpose: To examine the effect of the omega-6 to omega-3 fatty acid ratio on age-related changes in executive functions in children and older adults. Participants: Eighty-four typically-developing 7-to 12-year-old children. Procedure (methods): Participants and a caregiver will participate in 4 sessions. Three sessions will consist of the screening. These sessions will be telephone calls to collect 24-hour diet information that will be used to determine whether they are eligible for the fourth session. Approximately 120 participants will be screened to find 84 participants who are eligible for the fourth session, in which participants will complete a series of tests on the Cambridge Neuropsychological Test Automated Battery (CANTAB) - a touch-screen device that provides computerized versions of standardized cognitive tests. They will also complete a maze task in which they figure out a path through the maze by walking on the correct squares. Brain activity will be recorded using a portable near-infrared spectroscopy (NIRS) system.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
79

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Apr 2014

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 1, 2014

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

July 23, 2014

Completed
2 days until next milestone

First Posted

Study publicly available on registry

July 25, 2014

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2016

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2016

Completed
Last Updated

December 16, 2020

Status Verified

December 1, 2020

Enrollment Period

2.1 years

First QC Date

July 23, 2014

Last Update Submit

December 11, 2020

Conditions

Outcome Measures

Primary Outcomes (1)

  • Error (count) and latency (in milliseconds) measures from executive function tasks

    For one specific aim, the omega-6 to omega-3 fatty acid ratio will be determined by summing the omega-6 and omega-3 fatty acid levels in plasma and dividing omega-6 fatty acids by omega-3 fatty acids. The calculated ratio will be used to predict error and latency scores on executive function tasks. For a second specific aim, the oxygenated and deoxygenated hemoglobin concentrations from near-infrared spectroscopy (NIRS) measurements will be used to predict the error and latency measures from executive function tasks.

    One time with children who are 7-12 years old

Secondary Outcomes (2)

  • Oxygenated and deoxygenated hemoglobin concentrations from near-infrared spectroscopy (NIRS)

    One time with children who are 7-12 years old.

  • Performance on the Maze as measured by Noldus Ethovision

    One time with children who are 7-12 years old

Study Arms (2)

7-9 year olds

These are children who are between 7 and 9 years old when they are tested.

10-12 year olds

These are children who are between 10 and 12 years old when they are tested.

Eligibility Criteria

Age7 Years - 12 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)
Sampling MethodNon-Probability Sample
Study Population

All participants will be typically-developing, healthy 7-to-12-year-olds who are fluent in English. Every effort will be made to recruit roughly equal numbers of boys and girls. Recruitment will be conducted irrespective of race and ethnicity. An attempt will be made to match the sample to the race and ethnicity of the region: 80% White, 15% African-American, and 5% Native American, Asian, and Other descent.

You may qualify if:

  • Typically-developing children 7-12 years old

You may not qualify if:

  • Children or parents who do not speak English
  • Any diagnosis of a psychological illness
  • History of seizures
  • History of tobacco exposure during gestation
  • History of alcohol exposure during gestation

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

UNC-Chapel Hill's Nutrition Research Institute

Kannapolis, North Carolina, 28081, United States

Location

Related Publications (3)

  • Ingol TT, Li R, Boone KM, Rausch J, Klebanoff MA, Turner AN, Yeates KO, Nelin MA, Sheppard KW, Keim SA. Docosahexaenoic and Arachidonic Acid Supplementation of Toddlers Born Preterm Does Not Affect Short-Term Growth or Adiposity. J Nutr. 2019 Dec 1;149(12):2182-2190. doi: 10.1093/jn/nxz115.

  • Sheppard KW, Cheatham CL. Omega-6/omega-3 fatty acid intake of children and older adults in the U.S.: dietary intake in comparison to current dietary recommendations and the Healthy Eating Index. Lipids Health Dis. 2018 Mar 9;17(1):43. doi: 10.1186/s12944-018-0693-9.

  • Sheppard KW, Cheatham CL. Executive functions and the omega-6-to-omega-3 fatty acid ratio: a cross-sectional study. Am J Clin Nutr. 2017 Jan;105(1):32-41. doi: 10.3945/ajcn.116.141390. Epub 2016 Nov 16.

Study Officials

  • Carol L Cheatham, Ph.D.

    University of North Carolina, Chapel Hill

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor of Psychology & Neuroscience

Study Record Dates

First Submitted

July 23, 2014

First Posted

July 25, 2014

Study Start

April 1, 2014

Primary Completion

May 1, 2016

Study Completion

May 1, 2016

Last Updated

December 16, 2020

Record last verified: 2020-12

Locations