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Alzheimer's DiseaseNCT02074215

Effect of Exercises Training in Patients With Mild Cognitive Impairment and Early Alzheimer's Disease

A study testing Aerobic exercises and Stretch exercise in people with Alzheimer's Disease, run by National Taiwan University Hospital at 1 site in Taiwan.

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

Recent studies have shown that aerobic exercises and dual-task training are effective in improving overall cognitive function in patients with cognitive impairment or dementia. However, the biological mechanisms are unknown in humans. Read more about this study

Who is it for?
Ages 60 to 90 years
Conditions the study is for
Alzheimer's Disease
What is being tested?
Aerobic exercises and Stretch exercise
Could I receive a placebo?
No, everyone receives an active treatment
How many people
19 participants
Where
1 siteTaiwan
Study dates
Mar 2011to Dec 2013
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 90 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • mild cognitive impairment or mild AD.

Who cannot join

  • neurological disorders or psychiatric disorders, or any other systematic diseases that would affect their walking ability

Trial locations and contacts

1 site in 1 country.

Taiwan1 site
  • National Taiwan University Hospital

    Taipei, 100

Other trials in Taiwan

About this study

Official title: Effects and Mechanisms of Aerobic Exercises Combined With Dual-task Training in Cognitive Function in Patients With Mild Cognitive Impairment and Early Alzheimer's Disease

Recent studies have shown that aerobic exercises and dual-task training are effective in improving overall cognitive function in patients with cognitive impairment or dementia. However, the biological mechanisms are unknown in humans. It also remains unclear regarding whether carrying APOEε4 genotype or not would influence the effects. Therefore, the three main purposes of this study are: (1) to investigate the effects of a 3-month aerobic exercises combined with dual-task training on memory and executive cognitive functions in patients with mild cognitive impairment (MCI) and in those with early Alzheimer's disease (AD); (2) to compare the differences in training effects between patients who carry APOEε4 genotype and those who do not carry this genotype; and (3) to investigate the biological mechanisms of the exercise training effects on memory and executive cognitive function in these patients. The biological mechanisms of interest will include the blood Aβ1-40 and Aβ1-42 level, insulin, fasting glucose, cytokine, integrity of brain fiber tracts, and cerebral blood flow.

We will conduct a randomized controlled clinical trial. A total of 70 patients with MCI or AD will be recruited. The participants will be randomly assigned to the experimental group or the control group. Both groups will receive three 90-minute exercise sessions per week for 12 weeks. For the experimental group, the exercise program will include moderate intensity aerobic exercises and dual-task training; whereas for the control group, the training program will include gentle stretching exercises. Both groups will receive examinations on outcome variables, including blood Aβ1-40 and Aβ1-42 level, insulin, fasting glucose, cytokine,integrity of brain fiber tracts, cerebral blood flow, cognitive function, and dual task performance at baseline, post-training, and after a 3-month follow-up period. Differences on the aforementioned outcomes brought by the 12-week training programs will be compared between the experimental and control groups. Exercise effects between patients who carry APOEε4 genotype and those who do not will also be examined.

Results of this study will provide relevant clinical evidence for the effects of aerobic exercises combined with dual-task training on patients with MCI and mild AD; and will provide further understanding of the mechanisms mediating these effects.

Read the detailed description

Recent studies have shown that moderate-to-high intensity aerobic exercises are effective in improving overall cognitive function in patients with cognitive impairment or dementia. Dual-task training programs also show positive effects on enhancing executive function in patients with cognitive impairment. However, the biological mechanisms through which these training effects are mediated remain largely unknown in humans. It also remains unclear regarding whether carrying APOEε4 genotype or not would influence the effects of aerobic exercises and dual-task training on cognitive function of these patients. Therefore, the three main purposes of this study are:

  1. to investigate the effects of a 3-month aerobic exercises combined with dual-task training on memory and executive cognitive functions in patients with mild cognitive impairment (MCI) and in those with early Alzheimer's disease (AD);
  2. to compare the differences in training effects between patients who carry APOEε4 genotype and those who do not carry this genotype; and
  3. to investigate the biological mechanisms of the exercise training effects on memory and executive cognitive function in these patients. The biological mechanisms of interest will include the blood Aβ1-40 and Aβ1-42 level, insulin, fasting glucose, cytokine (TNF-α, Interleukin(IL) -Iβ, IL-6, CRP),integrity of brain fiber tracts, and cerebral blood flow.

We will conduct a single-blind (assessor blinded) randomized controlled clinical trial. A total of 70 patients with MCI or AD will be recruited. The participants will be randomly assigned to the experimental group or the control group using stratified randomization by matching patient's diagnosis. Both groups will receive one health education session and three 90-minute exercise sessions per week for 12 weeks. For the experimental group, the exercise program will include moderate intensity aerobic exercises and dual-task training; whereas for the control group, the training program will include gentle stretching exercises and activities in sitting of mild intensity. Both groups will receive examinations on outcome variables, including blood Aβ1-40 and Aβ1-42 level, insulin, fasting glucose, cytokine (TNF-α, IL-Iβ, IL-6, CRP),integrity of brain fiber tracts, cerebral blood flow, cognitive function, and dual task performance at baseline, post-training, and after a 3-month follow-up period. Differences on the aforementioned outcomes brought by the 12-week training programs will be compared between the experimental and control groups using two-way (group x time) repeated measures of ANOVA. Intercorrelations among the changes in these outcomes will be analyzed to explore the possible biological mechanisms mediating the training effects. Exercise effects between patients who carry APOEε4 genotype and those who do not will also be examined.

Results of this study will provide relevant clinical evidence for the effects of aerobic exercises combined with dual-task training on patients with MCI and mild AD; and will provide further understanding of the mechanisms mediating these effects.

Being tested
Aerobic exercises, Stretch exercise
Keywords
Mild Cognitive Impairment, Alzheimer's disease, Aerobic exercise
Medical subject headings
Alzheimer Disease, Cognitive Dysfunction

What participants receive

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

  • Aerobic exercisesOther

    Aerobic exercises + dual task

  • Stretch exerciseOther

    Stretch exercise

Study groups in NCT02074215
Study groupRoleWhat they receive
Aerobic exercisesExperimental90-minute exercise sessions per week for 12 weeks
Receives: Other: Aerobic exercises
Stretch exerciseActive comparator90-minute exercise sessions per week for 12 weeks
Receives: Other: Stretch exercise

What is being measured

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

  1. Changes of Memory and executive function related neuropsychological test

    Measured: Changes from baseline in neuropsychological test at 3 months and 6 months

Secondary outcomes (1)
  1. Changes of muscle strength of upper and lower extremity and walking speed

    Measured: Changes from baseline in muscle strength of upper and lower extremity and walking speed at 3 months and 6 months

Timeline

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

  1. First posted28 Feb 2014 (estimated)
  2. Study startMar 2011
  3. Primary completionDec 2012
  4. Study completionDec 2013

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
Treatment
Allocation
Non-randomised
Intervention model
Crossover
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
19 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02074215
Sponsor's protocol ID
201012136RB
Status last verified
Feb 2014
First submitted
19 Nov 2012
Last updated
28 Feb 2014
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A study testing Aerobic exercises and Stretch exercise in people with Alzheimer's Disease, run by National Taiwan University Hospital at 1 site in Taiwan.

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 1 inclusion and 1 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 28 Feb 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Taiwan. 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. 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?

Changes of Memory and executive function related neuropsychological test (time frame: Changes from baseline in neuropsychological test at 3 months and 6 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 28 Feb 2014.

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