NCT03419052

Brief Summary

The purpose of this study is to learn how foods high in polyphenols and brain training exercises affect older adults' cognitive performance

Trial Health

87
On Track

Trial Health Score

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

Enrollment
212

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jan 2019

Longer than P75 for not_applicable

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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 26, 2018

Completed
6 days until next milestone

First Posted

Study publicly available on registry

February 1, 2018

Completed
11 months until next milestone

Study Start

First participant enrolled

January 10, 2019

Completed
5.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 8, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 8, 2024

Completed
12 months until next milestone

Results Posted

Study results publicly available

March 7, 2025

Completed
Last Updated

March 7, 2025

Status Verified

February 1, 2025

Enrollment Period

5.2 years

First QC Date

January 26, 2018

Results QC Date

February 17, 2025

Last Update Submit

February 17, 2025

Conditions

Keywords

randomized controlled trialcognitioncognitive trainingMIND dietquality of lifeAlzheimer's disease

Outcome Measures

Primary Outcomes (1)

  • Executive Cognitive Function Composite Score

    Executive Cognitive Function Composite Score as Measured by Individually-Administered Tests of Verbal Fluency, Complex Sequencing, Response Inhibition, and List Learning. The scale score range is -20 to 20. Low scores represent worse function and higher scores represent better function.

    Immediately following the 12-week intervention (Immediate Post-Training)]

Study Arms (4)

MINDSpeed Intervention

EXPERIMENTAL

Consumption of foods high in polyphenols (i.e., MIND foods) AND speed of processing training

Behavioral: Speed of processing trainingBehavioral: MIND foods

MIND food and training control

ACTIVE COMPARATOR

Consumption of foods high in polyphenols (i.e., MIND foods) AND online (inert) games

Behavioral: MIND foodsBehavioral: Cognitive training control

Control foods and speed of processing training

ACTIVE COMPARATOR

Consumption of low polyphenol foods AND speed of processing training

Behavioral: Speed of processing trainingBehavioral: Control foods

Double Control

SHAM COMPARATOR

Consumption of low polyphenol foods AND online (inert) games

Behavioral: Cognitive training controlBehavioral: Control foods

Interventions

Speed of processing training is provided by the Internet-based BrainHQ program from Posit Science, Inc. BrainHQ contains five different speed training modules (Hawk Eye, Visual Sweeps, Fine Tuning, Eye for Detail, Sound Sweeps) which tap time-order judgment, visual discrimination, spatial-match, forward-span, instruction-following, and memory.

Control foods and speed of processing trainingMINDSpeed Intervention
MIND foodsBEHAVIORAL

The "MIND" diet (created by the Rush Aging \& Memory group) specifically emphasizes foods high in polyphenols such as berries, nuts, cocoa, black beans, olive oil, and green leafy vegetables. Participants select these foods from the digital study application and receive them through home delivery.

MIND food and training controlMINDSpeed Intervention

Control training is provided by the Internet-based BrainHQ program from Posit Science, Inc.These are inert games such as tic-tac-toe, connect 4, battleship, etc.

Double ControlMIND food and training control
Control foodsBEHAVIORAL

Foods contain low polyphenols. Participants select these foods from the digital study application and receive them through home delivery.

Control foods and speed of processing trainingDouble Control

Eligibility Criteria

Age60 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • age 60 years or older,
  • ≤ 12 years of education,
  • English speaking,
  • Marion County (and immediately surrounding counties) resident, with steady/fixed residence to receive food deliveries
  • natural-born US citizen.

You may not qualify if:

  • living in nursing home
  • self-reported diagnosis of dementia, Alzheimer's disease (AD), cancer with short life expectancy, multiple sclerosis, epilepsy, schizophrenia, bipolar disorder, Parkinson disease; current chemotherapy or radiation therapy; history of brain tumor, brain surgery, brain infection; stroke or myocardial infarction within the past 12 months
  • current alcohol consumption ≥8 drinks per week for women or ≥15 drinks per week for men;
  • poor vision (self-reported difficulty reading a newspaper) or color blind;
  • low communicative ability (examiner rated) that would interfere with interventions and assessments;
  • prior involvement in similar cognitive training studies;
  • unable or unwilling to provide blood sample at Baseline
  • tumor, hemorrhage, aneurysm, hydrocephalus, or other significant clinical finding from Baseline brain MRI

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Regenstrief Institute

Indianapolis, Indiana, 46202, United States

Location

Related Publications (1)

  • Clark DO, Xu H, Tangney CC, Lin AW, Risacher SL, Saykin AJ, Considine RV, Garringer HJ, Moser L, Carter A, Miller CM, Sprague B, Callahan CM, Unverzagt FW. Feasibility of lifestyle interventions for cognition in adults with low education. Alzheimers Dement. 2025 May;21(5):e70232. doi: 10.1002/alz.70232.

MeSH Terms

Conditions

Alzheimer Disease

Condition Hierarchy (Ancestors)

DementiaBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesTauopathiesNeurodegenerative DiseasesNeurocognitive DisordersMental Disorders

Results Point of Contact

Title
Daniel Clark, PhD
Organization
Indiana University

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
FACTORIAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor of Medicine

Study Record Dates

First Submitted

January 26, 2018

First Posted

February 1, 2018

Study Start

January 10, 2019

Primary Completion

March 8, 2024

Study Completion

March 8, 2024

Last Updated

March 7, 2025

Results First Posted

March 7, 2025

Record last verified: 2025-02

Locations