The vast majority of individuals with heart failure do not participate in center based cardiac rehabilitation (CBCR). While steps to increase utilization of CBCR are important, many individuals will still not participate for a variety of reasons. This pilot randomized controlled trial is evaluating a home-based cardiac rehabilitation (HBCR) intervention delivered using a custom app and digital tools in patients with heart failure. After a brief roll-in period, participants are randomized to one of two groups: (1) control or (2) HBCR mobile health intervention. The intervention targets key health behaviors and includes traditional cardiac rehabilitation components. The study will assess the effect of the intervention on physical activity, quality of life, clinical events, and other outcomes.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
100
Home-based cardiac rehabilitation intervention facilitated by a custom app to deliver education, counseling on healthy living and modification of risk factors, mindfulness, and physical activity guidance. Additionally, there are periodic video calls with an exercise physiologist.
Vanderbilt University Medical Center
Nashville, Tennessee, United States
RECRUITINGAverage daily total activity counts
Daily total activity counts are determined by a triaxial actigraphy device.
Time frame: The actigraphy device will be worn for approximately one week and, using data from days when the device was worn >10 hours, the average daily total activity counts determined. The primary comparison will be at 12 weeks after randomization.
Average daily active minutes
Daily active minutes are determined by a triaxial actigraphy device.
Time frame: The actigraphy device will be worn for approximately one week and, using data from days when the device was worn >10 hours, the average daily activity minutes determined. The comparison will be at 12 weeks after randomization.
Average daily steps
Daily steps are determined by a triaxial actigraphy device.
Time frame: The actigraphy device will be worn for approximately one week and, using data from days when the device was worn >10 hours, the average daily steps determined. The comparison will be at 12 weeks after randomization.
Average daily energy expenditure
Average daily energy expenditure is determined by a triaxial actigraphy device.
Time frame: The actigraphy device will be worn for approximately one week and, using data from days when the device was worn >10 hours, the average daily energy expenditure determined. The comparison will be at 12-weeks after randomization.
Average daily moderate to vigorous active minutes
Daily moderate to vigorous active minutes are determined by a triaxial actigraphy device.
Time frame: The actigraphy device will be worn for approximately one week and, using data from days when the device was worn >10 hours, the average daily moderate to vigorous active mins determined. The comparison will be at 12-weeks after randomization.
Sustained physical activity bursts of 10 minutes or greater per day
Physical activity bursts are determined by a triaxial actigraphy device.
Time frame: The actigraphy device will be worn for approximately one week and, using data from days when the device was worn >10 hours, the average daily steps determined. The comparison will be at 12 weeks after randomization.
6 minute walk distance
The distance walked in 6 minutes.
Time frame: The comparison will be at 12-weeks after randomization.
Chair sit to stand time
The time taken to complete 5 chair rises.
Time frame: The comparison will be at 12-weeks after randomization.
5 meter gait speed
The speed of walking 5 meters (meters/second).
Time frame: The comparison will be at 12-weeks after randomization.
Balance test
Score based on ability to stand unsupported for 10 seconds with feet in a certain position (feet together, semi tandem, full tandem). Score ranges from 0-4 (higher score is better).
Time frame: The comparison will be at 12-weeks after randomization.
AM-PAC Basic Mobility Outpatient Short Form (Low Function)
Basic mobility will be assessed with the Activity Measure for Post-Acute Care (AM-PAC) Basic Mobility Outpatient Short Form (Low Function); (raw score range 0-39, higher score is better)
Time frame: The comparison will be at 12-weeks after randomization.
Short Physical Performance Battery Score
Composite score including 3 components (Chair sit to stand, 5 meter gait speed, balance test). Score ranges from 0-12 (higher score is better).
Time frame: The comparison will be at 12-weeks after randomization.
Heart-failure specific health status assessed by the KCCQ
Assessed with the Kansas City Cardiomyopathy Questionnaire (KCCQ); (score range 0-100, higher is better health status).
Time frame: The comparison will be at 12-weeks after randomization.
Physical health status assessed by the PROMIS 10
Global physical health score from the PROMIS 10 Global Health Short Form questionnaire (raw score range 4-20, higher is better).
Time frame: The comparison will be at 12-weeks after randomization.
Mental health status assessed by the PROMIS 10
Global mental health score from the PROMIS 10 Global Health Short Form questionnaire (raw score range 4-20, higher is better)
Time frame: The comparison will be at 12-weeks after randomization.
Mood disturbance assessed by PHQ9
Patient health questionnaire 9 (PHQ9); (score range 1-27, lower is better)
Time frame: The comparison will be at 12-weeks after randomization.
Behavioral Regulation In Exercise Questionnaire 3
Behavioral Regulation In Exercise Questionnaire 3 (BREQ-3); (score range per question of 0-4, higher is better).
Time frame: The comparison will be at 12-weeks after randomization.
Social support and exercise survey
Social support and exercise survey (score range per question of 1-5, higher is better).
Time frame: The comparison will be at 12-weeks after randomization.
Multidimensional Self-Efficacy for Exercise Scale
Multidimensional Self-Efficacy for Exercise Scale (MSES); (score range per question of 0-10, higher is better).
Time frame: The comparison will be at 12-weeks after randomization.
General self-efficacy scale
General self-efficacy scale (GSE); (score range per question of 1-4, higher is better).
Time frame: The comparison will be at 12-weeks after randomization.
Blood pressure
Time frame: The comparison will be at 12-weeks after randomization.
Modified Heart Failure Collaborative GDMT score
Guideline directed medical therapy (GDMT) score includes 4 components of RAASi, BB, SGLT2i, and MRA (maximum score of 9, higher scores indicate increased GDMT utilization).
Time frame: The comparison will be at 12-weeks after randomization in patients with LVEF of 40% or less.
Probability of the hierarchical clinical event composite
The hierarchical clinical event composite includes (in order of hierarchy): (1) all-cause death and (2) all-cause hospitalization. To examine whether the intervention improves mortality and hospitalization, in heart failure patients, we will conduct Bayesian Markov longitudinal proportional odds model on weekly outcome measures. The active treatment vs. control group comparison (primary comparison for the trial) will be estimated by contrasting the average of posterior probability that Y≥y of the active treatment group to the control group.
Time frame: Over the entire available follow-up period for randomized participants (minimum of 12 weeks).
All-cause unplanned rehospitalization
This includes inpatient, observation, or ER visit.
Time frame: Over the entire available follow-up period for randomized participants (minimum of 12 weeks).
Worsening heart failure event
This includes inpatient, observation, ER visit, or urgent clinic visit for worsening heart failure.
Time frame: Over the entire available follow-up period for randomized participants (minimum of 12 weeks).
All-cause mortality
Death for any reason.
Time frame: Over the entire available follow-up period for randomized participants (minimum of 12 weeks).
"Thriving patient" composite
Percent of patients that meet the following criteria: 1) alive 2) no all-cause hospitalization 3) Improvement in average daily total activity counts by 10% or greater from baseline to 12 weeks.
Time frame: The comparison will be made at 12 weeks.
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