NCT04590833

Brief Summary

This proposed study will advance science by providing evidence on the feasibility of a standardized, rigorously designed and delivered exercise program to improve cognition and plasma brain-derived neurotrophic factor (BDNF) levels for individuals with type 2 diabetes. We will also explore how certain genetic variant may influence exercise-induced cognitive improvements and plasma BDNF levels. Findings of the proposed study will establish a comprehensive knowledge base for future research and development of a personalized exercise program for high-risk individuals who are vulnerable to cognitive dysfunction based on their genomic profiles.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
84

participants targeted

Target at P50-P75 for not_applicable diabetes-mellitus-type-2

Timeline
Completed

Started Jun 2021

Typical duration for not_applicable diabetes-mellitus-type-2

Geographic Reach
1 country

1 active site

Status
unknown

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

First Submitted

Initial submission to the registry

October 9, 2020

Completed
10 days until next milestone

First Posted

Study publicly available on registry

October 19, 2020

Completed
8 months until next milestone

Study Start

First participant enrolled

June 1, 2021

Completed
2.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 24, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 24, 2023

Completed
Last Updated

January 24, 2022

Status Verified

January 1, 2022

Enrollment Period

2.3 years

First QC Date

October 9, 2020

Last Update Submit

January 7, 2022

Conditions

Keywords

cognitive dysfunctionexercise

Outcome Measures

Primary Outcomes (4)

  • Episodic memory

    Picture Sequence Memory Test. Test-retest reliability of the test is 0.77. Convergent validity and discriminant validity is 0.69 and -0.08, respectively.

    Three months

  • Executive function

    Dimensional Change Card Sort Test. Test-retest reliability of the test is 0.88. Convergent validity and discriminant validity is -0.51 and 0.14, respectively.

    Three months

  • Working memory

    List Sorting Working Memory Test. Test-retest reliability of the test is 0.77. Convergent validity and discriminant validity are 0.58 and 0.30, respectively.

    Three months

  • Processing speed

    Pattern Comparison Processing Speed Test. The test takes about 3 minutes to compete. Test-retest reliability of the test is 0.72. Convergent validity and discriminant validity is 0.49 and 0.12, respectively.

    Three months

Secondary Outcomes (6)

  • Plasma BDNF in ng/mL

    Three months

  • Fasting blood glucose in mg/dL

    Three months

  • HbA1c in percentage

    Three months

  • Weight in kilograms

    Three months

  • Height in meters

    Three months

  • +1 more secondary outcomes

Study Arms (2)

Aerobic exercise group

EXPERIMENTAL
Behavioral: Supervised walking on a treadmill

Attention control group

PLACEBO COMPARATOR
Behavioral: Supervised stretching exercise

Interventions

Each participant will be provided with an individualized target heart rate zone based on his/her age. Heart rate during exercise will be measured using a finger pulse oximeter. Following baseline measures, participants will receive instructions on how to use a finger pulse oximeter by a student. For participants who are not physically fit or are just engaging in regular exercise, they will be advised to start walking on a treadmill at a comfortable pace for 5 to 10 minutes at one time.46 Exercise duration and intensity will be progressed from week 3 to week 5, until participants will walk at 40-59% of heart rate reserve based on their age, which will be maintained throughout the study.

Aerobic exercise group

Following baseline measures, a student will demonstrate the use of a pulse oximeter and stretching movements to these participants. Starting on week 3, participants will do the prescribed stretching exercise 3 times a week, maintaining heart rate below 40% of heart rate reserve during exercise. Stretching will target all major muscle-tendon groups including shoulder, chest, neck, truck, lower back, hips, and legs. It will also involve a slow and constant motion that accounts for any physical limitations and physician-specified precautions

Attention control group

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Participants eligible for this study will be sedentary adults with no major chronic physical or mental disorders but classified as having low physical activity levels determined by the International Physical Activity Questionnaire.
  • Participants must have a documented medical diagnosis of T2DM and must be receiving diabetes care at the time of enrollment.
  • Participants must be English-speaking and are able to give informed consent.

You may not qualify if:

  • include uncontrolled hypertension with resting blood pressure of 160/90 mmHg or higher, having symptoms of coronary ischemia such as chest pain and severe shortness of breath during activities of daily living, loss of consciousness/fainting for any reason, or having any other medical or physical conditions (such as osteoporosis, asthma, spinal cord injury) or symptoms (e.g., pain or swelling in any part of the body) that may interfere with exercise participation.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Arkansas

Fayetteville, Arkansas, 72701, United States

RECRUITING

MeSH Terms

Conditions

Diabetes Mellitus, Type 2Cognitive DysfunctionMotor Activity

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System DiseasesCognition DisordersNeurocognitive DisordersMental DisordersBehavior

Central Study Contacts

Tingting Liu, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 9, 2020

First Posted

October 19, 2020

Study Start

June 1, 2021

Primary Completion

September 24, 2023

Study Completion

September 24, 2023

Last Updated

January 24, 2022

Record last verified: 2022-01

Data Sharing

IPD Sharing
Will not share

Locations