Trial Outcomes & Findings for Alzheimer's Prevention Through Exercise (NCT NCT02000583)

NCT ID: NCT02000583

Last Updated: 2020-07-28

Results Overview

Amyloid burden measure is mean Florbetapir cortical-to-cerebellar uptake ratio averaged across 6 regions of interest (frontal, temporal, parietal, anterior cingulate, posterior cingulate, and precuneus). Higher numbers mean more amyloid accumulation. There is no defined maximum value. Zero is the theoretical minimum value.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

117 participants

Primary outcome timeframe

Baseline to 52 weeks

Results posted on

2020-07-28

Participant Flow

Participant milestones

Participant milestones
Measure
Aerobic Exercise Group
Exercise 150 minutes per week (over 3 to 5 days) for 52 weeks Aerobic Exercise: Aerobic group participants will engage in 150 minutes of aerobic exercise over 4-5 days per week for 52 weeks
Control Group
Standard of Care exercise recommendations Standard of Care: Control group participants will be provided educational materials on starting an exercise program, but will receive no formal support for their exercise program.
Overall Study
STARTED
78
39
Overall Study
COMPLETED
75
34
Overall Study
NOT COMPLETED
3
5

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Alzheimer's Prevention Through Exercise

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Aerobic Exercise Group
n=78 Participants
Exercise 150 minutes per week (over 3 to 5 days) for 52 weeks Aerobic Exercise: Aerobic group participants will engage in 150 minutes of aerobic exercise over 4-5 days per week for 52 weeks
Control Group
n=39 Participants
Standard of Care exercise recommendations Standard of Care: Control group participants will be provided educational materials on starting an exercise program, but will receive no formal support for their exercise program.
Total
n=117 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Age, Categorical
Between 18 and 65 years
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Age, Categorical
>=65 years
78 Participants
n=99 Participants
39 Participants
n=107 Participants
117 Participants
n=206 Participants
Age, Continuous
72.2 years
STANDARD_DEVIATION 5.3 • n=99 Participants
71.2 years
STANDARD_DEVIATION 4.8 • n=107 Participants
71.5 years
STANDARD_DEVIATION 5.0 • n=206 Participants
Sex: Female, Male
Female
55 Participants
n=99 Participants
24 Participants
n=107 Participants
79 Participants
n=206 Participants
Sex: Female, Male
Male
23 Participants
n=99 Participants
15 Participants
n=107 Participants
38 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
78 Participants
n=99 Participants
39 Participants
n=107 Participants
117 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Asian
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Black or African American
1 Participants
n=99 Participants
4 Participants
n=107 Participants
5 Participants
n=206 Participants
Race (NIH/OMB)
White
77 Participants
n=99 Participants
35 Participants
n=107 Participants
112 Participants
n=206 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Region of Enrollment
United States
78 participants
n=99 Participants
39 participants
n=107 Participants
117 participants
n=206 Participants

PRIMARY outcome

Timeframe: Baseline to 52 weeks

Population: Six individuals did not complete follow-up testing due to withdrawal. Two refused follow-up PET.

Amyloid burden measure is mean Florbetapir cortical-to-cerebellar uptake ratio averaged across 6 regions of interest (frontal, temporal, parietal, anterior cingulate, posterior cingulate, and precuneus). Higher numbers mean more amyloid accumulation. There is no defined maximum value. Zero is the theoretical minimum value.

Outcome measures

Outcome measures
Measure
Aerobic Exercise Group
n=74 Participants
Exercise 150 minutes per week (over 3 to 5 days) for 52 weeks Aerobic Exercise: Aerobic group participants will engage in 150 minutes of aerobic exercise over 4-5 days per week for 52 weeks
Control Group
n=35 Participants
Standard of Care exercise recommendations Standard of Care: Control group participants will be provided educational materials on starting an exercise program, but will receive no formal support for their exercise program.
Amyloid Burden
Baseline
1.20 Standard Uptake Value Ratio (SUVR)
Standard Deviation .2
1.22 Standard Uptake Value Ratio (SUVR)
Standard Deviation .2
Amyloid Burden
Follow-up
1.21 Standard Uptake Value Ratio (SUVR)
Standard Deviation .2
1.22 Standard Uptake Value Ratio (SUVR)
Standard Deviation .2

SECONDARY outcome

Timeframe: Baseline to 52 weeks

Population: Six individuals did not complete follow-up testing due to withdrawal. Seven refused follow-up MRI.

Whole brain volume in mL define by Freesurfer analysis. Higher numbers indicate greater brain volume. There is no defined maximum. Zero is the theoretical minimum.

Outcome measures

Outcome measures
Measure
Aerobic Exercise Group
n=70 Participants
Exercise 150 minutes per week (over 3 to 5 days) for 52 weeks Aerobic Exercise: Aerobic group participants will engage in 150 minutes of aerobic exercise over 4-5 days per week for 52 weeks
Control Group
n=34 Participants
Standard of Care exercise recommendations Standard of Care: Control group participants will be provided educational materials on starting an exercise program, but will receive no formal support for their exercise program.
Whole Brain Volume
Baseline
1068.7 mL
Standard Deviation 109.7
1061.7 mL
Standard Deviation 114.4
Whole Brain Volume
Follow-up
1063.4 mL
Standard Deviation 109.1
1059.1 mL
Standard Deviation 115.1

SECONDARY outcome

Timeframe: Baseline to Week 52

Population: Six individuals did not complete follow-up testing due to withdrawal.

Executive Function ability to be measured using confirmatory factor analysis (CFA). CFA aggregates scores from across multiple subtests. Values are standard deviations centered on a pooled baseline (all participant scores at baseline). Higher values mean improvement over baseline testing. Lower scores (including negative) mean worse performance after baseline testing. There is no minimum or maximum score.

Outcome measures

Outcome measures
Measure
Aerobic Exercise Group
n=75 Participants
Exercise 150 minutes per week (over 3 to 5 days) for 52 weeks Aerobic Exercise: Aerobic group participants will engage in 150 minutes of aerobic exercise over 4-5 days per week for 52 weeks
Control Group
n=36 Participants
Standard of Care exercise recommendations Standard of Care: Control group participants will be provided educational materials on starting an exercise program, but will receive no formal support for their exercise program.
Executive Function
Week 26
0.017 Standard Deviations
Standard Deviation 0.63
-0.035 Standard Deviations
Standard Deviation 0.39
Executive Function
Follow-up
.018 Standard Deviations
Standard Deviation .62
-0.037 Standard Deviations
Standard Deviation 0.45
Executive Function
Baseline
0.029 Standard Deviations
Standard Deviation .46
-0.042 Standard Deviations
Standard Deviation .37

Adverse Events

Aerobic Exercise Group

Serious events: 8 serious events
Other events: 23 other events
Deaths: 0 deaths

Control Group

Serious events: 4 serious events
Other events: 4 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Aerobic Exercise Group
n=78 participants at risk
Exercise 150 minutes per week (over 3 to 5 days) for 52 weeks Aerobic Exercise: Aerobic group participants will engage in 150 minutes of aerobic exercise over 4-5 days per week for 52 weeks
Control Group
n=39 participants at risk
Standard of Care exercise recommendations Standard of Care: Control group participants will be provided educational materials on starting an exercise program, but will receive no formal support for their exercise program.
Cardiac disorders
Supraventricular Tachycardia
0.00%
0/78 • One year
Adverse events were defined and graded according to CTCAE 3.0
2.6%
1/39 • Number of events 1 • One year
Adverse events were defined and graded according to CTCAE 3.0
Infections and infestations
Infection with unknown ANC
5.1%
4/78 • Number of events 4 • One year
Adverse events were defined and graded according to CTCAE 3.0
2.6%
1/39 • Number of events 1 • One year
Adverse events were defined and graded according to CTCAE 3.0
Musculoskeletal and connective tissue disorders
Lower extremity arthroplasty
1.3%
1/78 • Number of events 1 • One year
Adverse events were defined and graded according to CTCAE 3.0
2.6%
1/39 • Number of events 1 • One year
Adverse events were defined and graded according to CTCAE 3.0
Hepatobiliary disorders
Hepatobiliary inflammation
1.3%
1/78 • Number of events 1 • One year
Adverse events were defined and graded according to CTCAE 3.0
0.00%
0/39 • One year
Adverse events were defined and graded according to CTCAE 3.0
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Breast Cancer
1.3%
1/78 • Number of events 1 • One year
Adverse events were defined and graded according to CTCAE 3.0
0.00%
0/39 • One year
Adverse events were defined and graded according to CTCAE 3.0
Renal and urinary disorders
Acute Pyelonephritis with urinary tract infection
0.00%
0/78 • One year
Adverse events were defined and graded according to CTCAE 3.0
2.6%
1/39 • Number of events 1 • One year
Adverse events were defined and graded according to CTCAE 3.0
Injury, poisoning and procedural complications
Fall and hip fracture requiring fixation
1.3%
1/78 • Number of events 1 • One year
Adverse events were defined and graded according to CTCAE 3.0
0.00%
0/39 • One year
Adverse events were defined and graded according to CTCAE 3.0

Other adverse events

Other adverse events
Measure
Aerobic Exercise Group
n=78 participants at risk
Exercise 150 minutes per week (over 3 to 5 days) for 52 weeks Aerobic Exercise: Aerobic group participants will engage in 150 minutes of aerobic exercise over 4-5 days per week for 52 weeks
Control Group
n=39 participants at risk
Standard of Care exercise recommendations Standard of Care: Control group participants will be provided educational materials on starting an exercise program, but will receive no formal support for their exercise program.
Musculoskeletal and connective tissue disorders
Arthralgia
29.5%
23/78 • Number of events 23 • One year
Adverse events were defined and graded according to CTCAE 3.0
10.3%
4/39 • Number of events 4 • One year
Adverse events were defined and graded according to CTCAE 3.0

Additional Information

Jeffrey M. Burns MD

University of Kansas Medical Center

Phone: 913-588-0555

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place