Study on Physical Activity's Relationship With Cancer and Cognition

NCT ID: NCT03980626

Last Updated: 2024-09-05

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

31 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-09-30

Study Completion Date

2021-07-15

Brief Summary

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This pilot study tests the effects of aerobic exercise training on cognitive function in breast cancer survivors (BCS). Participants will be randomized to a 12-week walking intervention or usual care. Walking participants will attend small group sessions led by an exercise specialist 3 times weekly. Usual care participants will complete baseline and post-testing and be offered two sessions with an exercise specialist. All participants will complete a fitness test, electrophysiology, and patient-reported outcomes at baseline and post-intervention. A subset of participants will also be invited to undergo magnetic resonance imaging (MRI). The investigators will generate preliminary data on clinical and biological correlates of exercise and cognition, including treatment protocol, cardiorespiratory fitness, brain structure and function, and cancer-related fatigue.

Detailed Description

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Aim 1: This pilot study tests the effects of aerobic exercise training on cognitive function in breast cancer survivors (BCS). To test aim 1, the investigators will randomize up to forty post-menopausal BCS (3-24 months post-treatment) to a 12-week walking intervention (n=20) or usual care (n=20). Walking participants will attend small group (n=3-5 BCS) sessions led by an exercise specialist 3 times weekly. Usual care participants will complete baseline and post-testing and be offered two sessions with an exercise specialist after all data have been collected. Aim 1 measures include accelerometry, neurocognitive testing, and patient-reported outcomes at baseline and post-intervention.

Aim 2: The investigators will generate preliminary data on clinical and biological correlates of exercise and cognition, including treatment protocol, cardiorespiratory fitness, brain structure and function, and cancer-related fatigue. To test aim 2, all participants will complete a fitness test, electrophysiology, and patient-reported outcomes at baseline and post-intervention. A subset of participants will also be invited to undergo magnetic resonance imaging (MRI).

Data will be analyzed using descriptive statistics and analysis of covariance, and effect sizes expressed as standard mean difference will be calculated.

Conditions

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Breast Cancer Breast Neoplasm Female

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

SUPPORTIVE_CARE

Blinding Strategy

NONE

Study Groups

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Walking Intervention

Walking participants will engage in the 3-times weekly walking program for 12 weeks.

Group Type EXPERIMENTAL

Walking

Intervention Type BEHAVIORAL

The exercise intervention is designed to improve cardiorespiratory fitness, a known correlate of cognition and brain health, and follows the American College of Sports Medicine exercise guidelines for cancer survivors. Participants will engage in small group, moderate-to-vigorous intensity walking sessions three times weekly. Sessions will begin with a warm-up and end with a cool down and be progressive in nature. Volume of exercise will increase across weeks such that participants will progress from 15-20 minutes of walking to 40-45 minutes by week 8, and from 40-55% of their estimated heart rate reserve (HRR) to 65% of their HRR by week 9. All sessions will be led by trained exercise specialists to ensure close monitoring of participant safety. Participants will wear heart rate monitors and be asked to rate their perceived exertion to ensure they are exercising within the prescribed range. Modifications to each participant's exercise prescription will be made as needed.

Usual Care

Usual care participants will be offered two personalized exercise sessions with a trained exercise specialist after all post-intervention data have been collected.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Walking

The exercise intervention is designed to improve cardiorespiratory fitness, a known correlate of cognition and brain health, and follows the American College of Sports Medicine exercise guidelines for cancer survivors. Participants will engage in small group, moderate-to-vigorous intensity walking sessions three times weekly. Sessions will begin with a warm-up and end with a cool down and be progressive in nature. Volume of exercise will increase across weeks such that participants will progress from 15-20 minutes of walking to 40-45 minutes by week 8, and from 40-55% of their estimated heart rate reserve (HRR) to 65% of their HRR by week 9. All sessions will be led by trained exercise specialists to ensure close monitoring of participant safety. Participants will wear heart rate monitors and be asked to rate their perceived exertion to ensure they are exercising within the prescribed range. Modifications to each participant's exercise prescription will be made as needed.

Intervention Type BEHAVIORAL

Other Intervention Names

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Aerobic Exercise Training

Eligibility Criteria

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Inclusion Criteria

* Female
* Post-menopausal at time of diagnosis
* First, primary diagnosis of Stage I-IIIa breast cancer
* Completed treatment 3-24 months prior to study start
* Available to attend exercise sessions 3 times weekly for 12 weeks
* No scheduled travel \>7 consecutive days during the intervention
* Agree to be randomized
* Willingness to wear, charge, and sync Fitbit
* English reading and speaking
* Physician's clearance to exercise
* Provide written informed consent

Exclusion Criteria

* Males
* Pre- or peri-menopausal at the time of diagnosis
* Stage 0 or metastatic disease
* Currently receiving chemotherapy or radiation therapy
* More than 24 months post-treatment
* Scheduled to receive breast surgery
* Second cancer diagnosis (excluding non-invasive skin cancers)
* Self-report an average of ≥60 minutes of moderate to vigorous physical activities (MVPA) per week for the previous 6 months
* Not cleared to exercise by a physician
* Not available to attend 3 times weekly exercise sessions for 12 weeks
* Out of town travel scheduled for \>1 week during the intervention
* Unwilling to complete baseline assessments
* Unwilling to be randomized to the exercise or control group
* Unwilling to wear, charge, and sync the Fitbit during the study period
* Unable to read and speak in English
* Unwilling to provide written informed consent to participate
* Cognitive impairment prior to baseline assessment
* History of stroke, transient ischemic attack, other neurological disorders, or brain surgery involving tissue removal
Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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University of Nebraska

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Diane K Ehlers, PhD

Role: PRINCIPAL_INVESTIGATOR

University of Nebraska

Locations

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University of Nebraska Medical Center

Omaha, Nebraska, United States

Site Status

Countries

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United States

References

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Page LL, Fanning J, Phipps C, Berger A, Reed E, Ehlers D. Heart Rate Monitoring Among Breast Cancer Survivors: Quantitative Study of Device Agreement in a Community-Based Exercise Program. JMIR Cancer. 2024 Jun 20;10:e51210. doi: 10.2196/51210.

Reference Type DERIVED
PMID: 38900505 (View on PubMed)

Other Identifiers

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0091-19-FB

Identifier Type: -

Identifier Source: org_study_id

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