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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02119546
Other study ID # 200912126R
Secondary ID
Status Completed
Phase N/A
First received November 19, 2012
Last updated April 18, 2014
Start date May 2010
Est. completion date December 2012

Study information

Verified date April 2014
Source National Taiwan University Hospital
Contact n/a
Is FDA regulated No
Health authority Taiwan: Department of Health
Study type Interventional

Clinical Trial Summary

The purposes of this study are:

1. To investigate whether a 3-month exercise training program would improve cognitive function, motor performance, integrity of brain fiber tracts and cerebral blood flow;

2. To investigate the possible neuro-anatomical and neurophysiological mechanisms of exercise training on cognitive function, motor performance, integrity of brain fiber tract and cerebral blood flow in patients with mild cognitive impairment and in those with early Alzheimer's disease;

3. To investigate the influence of different apolipoprotein E (APOE) genotypes on the above-mentioned exercise effects.

The results of this study will provide medical evidence for the effects of exercise training on mild cognitive impairment and on early Alzheimer's disease; and will provide understanding of the mechanisms mediating these effects. More importantly, the results serve as the basis for future larger-scale exercise clinical trials for these two patient populations.


Description:

Recent studies have shown that exercise training could decrease the risk of dementia in the elderly population. Exercise training could also slow down the speed of deterioration of memory and other cognitive functions in patients who already have mild cognitive impairment or early Alzheimer's disease. However, the mechanisms of such effects are still unknown. Whether exercise training could improve neural fiber integrity, blood flow, or motor performance of these patients also remain unexplored.

Therefore, the purposes of this study are:

1. To investigate whether a 3-month exercise training program would improve cognitive function, motor performance, integrity of brain fiber tracts and cerebral blood flow;

2. To investigate the possible neuro-anatomical and neurophysiological mechanisms of exercise training on cognitive function, motor performance, integrity of brain fiber tract and cerebral blood flow in patients with mild cognitive impairment and in those with early Alzheimer's disease;

3. To investigate the influence of different APOE genotypes on the above-mentioned exercise effects.

We will conduct a single-blinded, randomized controlled clinical trial. We will recruit 60 patients with mild cognitive impairment or early Alzheimer's disease. The participants will be randomly classified into the exercise training group or control group. The exercise training group will receive health education and exercise training of moderate intensity, 3 times a week, for 12 weeks. The control group will receive health education only. Both groups will receive pre- (week 0), post- (week 12), and follow-up (week 24 after the end of the program) examinations for cognitive function, motor performance, diffusion tensor or diffusion spectrum magnetic resonance imaging, and transcranial duplex. We will compare the group differences on the aforementioned outcome measures brought by 12-week exercise training. We will also perform analysis of the correlations between the changes in these outcome measures to explore the possible neural or physiological mechanisms mediating the training effects. The effects of different APOE genotypes on these outcome measures will also be compared.

The results of this study will provide medical evidence for the effects of exercise training on mild cognitive impairment and on early Alzheimer's disease; and will provide understanding of the mechanisms mediating these effects. More importantly, the results serve as the basis for future larger-scale exercise clinical trials for these two patient populations.


Recruitment information / eligibility

Status Completed
Enrollment 19
Est. completion date December 2012
Est. primary completion date September 2012
Accepts healthy volunteers No
Gender Both
Age group 45 Years to 85 Years
Eligibility Inclusion Criteria:

- 45~85 years old and had independent walking ability

- The MCI is diagnosed basically on Petersen's criteria (Petersen, 2001), CDR score of 0.5 but normal activity of daily living /instrumental activities of daily living, and not demented

- Diagnosis of Alzheimer's disease based on NINCDS-ADRDA criteria for probable Alzheimer disease (McKhann, et al., 1984)

Exclusion Criteria:

- The subjects who had any neurological, musculoskeletal, cardio-pulmonary disorder which would cause gait disorder or cognitive dysfunction such as stroke, Parkinson disease, or arthritis were excluded

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Crossover Assignment, Masking: Single Blind (Outcomes Assessor), Primary Purpose: Treatment


Intervention

Other:
Aerobic exercise
Aerobic exercise and dual-task training
Stretch exercise
Stretch exercise & sitting balance

Locations

Country Name City State
Taiwan National Taiwan University Hospital Taipei

Sponsors (1)

Lead Sponsor Collaborator
National Taiwan University Hospital

Country where clinical trial is conducted

Taiwan, 

Outcome

Type Measure Description Time frame Safety issue
Primary Change from baseline in Color Trails Test at week12 and Week24 To investigate the cognitive executive function Baseline, Week12, Week24 No
Secondary Change from baseline in walking speed at week12 and Week24 To investigate walking ability baseline, week12 and Week24 No
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