Trial Outcomes & Findings for Improving Cardiac Rehabilitation Outcomes Through Mobile Case Management (iCARE) (NCT NCT04938661)

NCT ID: NCT04938661

Last Updated: 2026-04-27

Results Overview

The change in metabolic equivalents of task (METS) assessed by measuring the energy the body uses during activity relative to resting energy expenditure.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

206 participants

Primary outcome timeframe

Baseline; 3 Months

Results posted on

2026-04-27

Participant Flow

Participant milestones

Participant milestones
Measure
Conventional Center-Based Cardiac Rehab (CON)
Participants were prescribed 36 sessions of center-based CR. This includes supervised exercise sessions, cooking demonstrations, didactic lectures, video presentations, group support, and stress management education. During sessions, participants had direct access to the medical director, case manager, registered nurse, exercise physiologist, and stress management specialists. Center-Based Cardiac Rehab: 36 center-Based Cardiac Rehab Sessions
Conventional Center-Based Cardiac Rehab + mHealth (CON+)
Participants were prescribed 36 sessions of center-based CR as noted above. In addition, participants were provided access to the mHealth platform which provides "e-Learning modules" with factsheets, videos, quizzes, and questionnaires (coinciding with activities being conducted during the CON program), a Social Network Module allowed patients to communicate via secure network with other patients who were part of their invited network. The Social Network Module also allowed for secure two-way interaction with healthcare providers in the event that patients were experiencing signs or symptoms suggestive of worsening condition. This platform also contained a Personal Health Record Module allowing patients to upload, archive, and retrieve personal health data (e.g. fitness tracker data, heart rate monitor data, blood pressure recordings, etc.) and record vital signs, symptoms, treatments, and medical history. Center-Based Cardiac Rehab: 36 center-Based Cardiac Rehab Sessions mHealth: Mobile Health Platform
Home-Based Cardiac Rehab + mHealth (HOM+)
Participants were provided paper copies of educational content at the time of event/discharge. In addition, these participants were provided access to the same mHealth platform as the CON+ group. Participants in this group were encouraged to exercise three days per week while also completing the additional questionnaires and educational content provided by the mHealth platform in accordance with the CR program. Participation were tracked using web/internet analytics. mHealth: Mobile Health Platform Home-Based Cardiac Rehab: Encouraged to exercise 3 times per week at home
Overall Study
STARTED
71
67
68
Overall Study
COMPLETED
54
53
38
Overall Study
NOT COMPLETED
17
14
30

Reasons for withdrawal

Reasons for withdrawal
Measure
Conventional Center-Based Cardiac Rehab (CON)
Participants were prescribed 36 sessions of center-based CR. This includes supervised exercise sessions, cooking demonstrations, didactic lectures, video presentations, group support, and stress management education. During sessions, participants had direct access to the medical director, case manager, registered nurse, exercise physiologist, and stress management specialists. Center-Based Cardiac Rehab: 36 center-Based Cardiac Rehab Sessions
Conventional Center-Based Cardiac Rehab + mHealth (CON+)
Participants were prescribed 36 sessions of center-based CR as noted above. In addition, participants were provided access to the mHealth platform which provides "e-Learning modules" with factsheets, videos, quizzes, and questionnaires (coinciding with activities being conducted during the CON program), a Social Network Module allowed patients to communicate via secure network with other patients who were part of their invited network. The Social Network Module also allowed for secure two-way interaction with healthcare providers in the event that patients were experiencing signs or symptoms suggestive of worsening condition. This platform also contained a Personal Health Record Module allowing patients to upload, archive, and retrieve personal health data (e.g. fitness tracker data, heart rate monitor data, blood pressure recordings, etc.) and record vital signs, symptoms, treatments, and medical history. Center-Based Cardiac Rehab: 36 center-Based Cardiac Rehab Sessions mHealth: Mobile Health Platform
Home-Based Cardiac Rehab + mHealth (HOM+)
Participants were provided paper copies of educational content at the time of event/discharge. In addition, these participants were provided access to the same mHealth platform as the CON+ group. Participants in this group were encouraged to exercise three days per week while also completing the additional questionnaires and educational content provided by the mHealth platform in accordance with the CR program. Participation were tracked using web/internet analytics. mHealth: Mobile Health Platform Home-Based Cardiac Rehab: Encouraged to exercise 3 times per week at home
Overall Study
Lost to Follow-up
1
0
1
Overall Study
Protocol Violation
3
1
3
Overall Study
Withdrawal by Subject
6
11
22
Overall Study
Physician Decision
0
0
1
Overall Study
Could Note Tolerate
2
1
0
Overall Study
Hospitalization/New CV Event
5
1
3

Baseline Characteristics

Improving Cardiac Rehabilitation Outcomes Through Mobile Case Management (iCARE)

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Conventional Center-Based Cardiac Rehab (CON)
n=71 Participants
Participants were prescribed 36 sessions of center-based CR. This includes supervised exercise sessions, cooking demonstrations, didactic lectures, video presentations, group support, and stress management education. During sessions, participants had direct access to the medical director, case manager, registered nurse, exercise physiologist, and stress management specialists. Center-Based Cardiac Rehab: 36 center-Based Cardiac Rehab Sessions
Conventional Center-Based Cardiac Rehab + mHealth (CON+)
n=67 Participants
Participants were prescribed 36 sessions of center-based CR as noted above. In addition, participants were provided access to the mHealth platform which provides "e-Learning modules" with factsheets, videos, quizzes, and questionnaires (coinciding with activities being conducted during the CON program), a Social Network Module allowed patients to communicate via secure network with other patients who were part of their invited network. The Social Network Module also allowed for secure two-way interaction with healthcare providers in the event that patients were experiencing signs or symptoms suggestive of worsening condition. This platform also contained a Personal Health Record Module allowing patients to upload, archive, and retrieve personal health data (e.g. fitness tracker data, heart rate monitor data, blood pressure recordings, etc.) and record vital signs, symptoms, treatments, and medical history. Center-Based Cardiac Rehab: 36 center-Based Cardiac Rehab Sessions mHealth: Mobile Health Platform
Home-Based Cardiac Rehab + mHealth (HOM+)
n=68 Participants
Participants were provided paper copies of educational content at the time of event/discharge. In addition, these participants were provided access to the same mHealth platform as the CON+ group. Participants in this group were encouraged to exercise three days per week while also completing the additional questionnaires and educational content provided by the mHealth platform in accordance with the CR program. Participation were tracked using web/internet analytics. mHealth: Mobile Health Platform Home-Based Cardiac Rehab: Encouraged to exercise 3 times per week at home
Total
n=206 Participants
Total of all reporting groups
Age, Continuous
64.1 years
STANDARD_DEVIATION 10.76 • n=226 Participants
63.2 years
STANDARD_DEVIATION 14.16 • n=240 Participants
63.6 years
STANDARD_DEVIATION 11.04 • n=236 Participants
63.6 years
STANDARD_DEVIATION 12.00 • n=702 Participants
Sex: Female, Male
Female
21 Participants
n=226 Participants
18 Participants
n=240 Participants
19 Participants
n=236 Participants
58 Participants
n=702 Participants
Sex: Female, Male
Male
50 Participants
n=226 Participants
49 Participants
n=240 Participants
49 Participants
n=236 Participants
148 Participants
n=702 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=226 Participants
1 Participants
n=240 Participants
2 Participants
n=236 Participants
4 Participants
n=702 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
61 Participants
n=226 Participants
59 Participants
n=240 Participants
60 Participants
n=236 Participants
180 Participants
n=702 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
9 Participants
n=226 Participants
7 Participants
n=240 Participants
6 Participants
n=236 Participants
22 Participants
n=702 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=226 Participants
0 Participants
n=240 Participants
0 Participants
n=236 Participants
0 Participants
n=702 Participants
Race (NIH/OMB)
Asian
1 Participants
n=226 Participants
1 Participants
n=240 Participants
0 Participants
n=236 Participants
2 Participants
n=702 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=226 Participants
0 Participants
n=240 Participants
0 Participants
n=236 Participants
0 Participants
n=702 Participants
Race (NIH/OMB)
Black or African American
1 Participants
n=226 Participants
3 Participants
n=240 Participants
1 Participants
n=236 Participants
5 Participants
n=702 Participants
Race (NIH/OMB)
White
68 Participants
n=226 Participants
63 Participants
n=240 Participants
66 Participants
n=236 Participants
197 Participants
n=702 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=226 Participants
0 Participants
n=240 Participants
0 Participants
n=236 Participants
0 Participants
n=702 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
n=226 Participants
0 Participants
n=240 Participants
1 Participants
n=236 Participants
2 Participants
n=702 Participants
Region of Enrollment
United States
71 participants
n=226 Participants
67 participants
n=240 Participants
68 participants
n=236 Participants
206 participants
n=702 Participants

PRIMARY outcome

Timeframe: Baseline; 3 Months

Population: 10 participants in the CON arm, 9 participants in the CON+ arm and 1 participant in the HOM+ did not complete the METS measurement at the 3-month mark.

The change in metabolic equivalents of task (METS) assessed by measuring the energy the body uses during activity relative to resting energy expenditure.

Outcome measures

Outcome measures
Measure
Home-Based Cardiac Rehab + mHealth (HOM+)
n=37 Participants
Participants were provided paper copies of educational content at the time of event/discharge. In addition, these participants were provided access to the same mHealth platform as the CON+ group. Participants in this group were encouraged to exercise three days per week while also completing the additional questionnaires and educational content provided by the mHealth platform in accordance with the CR program. Participation were tracked using web/internet analytics. mHealth: Mobile Health Platform Home-Based Cardiac Rehab: Encouraged to exercise 3 times per week at home
Conventional Center-Based Cardiac Rehab (CON)
n=44 Participants
Participants were prescribed 36 sessions of center-based CR. This includes supervised exercise sessions, cooking demonstrations, didactic lectures, video presentations, group support, and stress management education. During sessions, participants had direct access to the medical director, case manager, registered nurse, exercise physiologist, and stress management specialists. Center-Based Cardiac Rehab: 36 center-Based Cardiac Rehab Sessions
Conventional Center-Based Cardiac Rehab + mHealth (CON+)
n=44 Participants
Participants were prescribed 36 sessions of center-based CR as noted above. In addition, participants were provided access to the mHealth platform which provides "e-Learning modules" with factsheets, videos, quizzes, and questionnaires (coinciding with activities being conducted during the CON program), a Social Network Module allowed patients to communicate via secure network with other patients who were part of their invited network. The Social Network Module also allowed for secure two-way interaction with healthcare providers in the event that patients were experiencing signs or symptoms suggestive of worsening condition. This platform also contained a Personal Health Record Module allowing patients to upload, archive, and retrieve personal health data (e.g. fitness tracker data, heart rate monitor data, blood pressure recordings, etc.) and record vital signs, symptoms, treatments, and medical history. Center-Based Cardiac Rehab: 36 center-Based Cardiac Rehab Sessions mHealth: Mobile Health Platform
Change in Metabolic Equivalents of Task (METS)
7.43 mL/kg/min
Interval 6.3 to 8.8
6.48 mL/kg/min
Interval 5.2 to 7.6
7.40 mL/kg/min
Interval 5.68 to 8.35

PRIMARY outcome

Timeframe: 1 Year

The number of participants who were re-hospitalized during the trial.

Outcome measures

Outcome measures
Measure
Home-Based Cardiac Rehab + mHealth (HOM+)
n=38 Participants
Participants were provided paper copies of educational content at the time of event/discharge. In addition, these participants were provided access to the same mHealth platform as the CON+ group. Participants in this group were encouraged to exercise three days per week while also completing the additional questionnaires and educational content provided by the mHealth platform in accordance with the CR program. Participation were tracked using web/internet analytics. mHealth: Mobile Health Platform Home-Based Cardiac Rehab: Encouraged to exercise 3 times per week at home
Conventional Center-Based Cardiac Rehab (CON)
n=54 Participants
Participants were prescribed 36 sessions of center-based CR. This includes supervised exercise sessions, cooking demonstrations, didactic lectures, video presentations, group support, and stress management education. During sessions, participants had direct access to the medical director, case manager, registered nurse, exercise physiologist, and stress management specialists. Center-Based Cardiac Rehab: 36 center-Based Cardiac Rehab Sessions
Conventional Center-Based Cardiac Rehab + mHealth (CON+)
n=53 Participants
Participants were prescribed 36 sessions of center-based CR as noted above. In addition, participants were provided access to the mHealth platform which provides "e-Learning modules" with factsheets, videos, quizzes, and questionnaires (coinciding with activities being conducted during the CON program), a Social Network Module allowed patients to communicate via secure network with other patients who were part of their invited network. The Social Network Module also allowed for secure two-way interaction with healthcare providers in the event that patients were experiencing signs or symptoms suggestive of worsening condition. This platform also contained a Personal Health Record Module allowing patients to upload, archive, and retrieve personal health data (e.g. fitness tracker data, heart rate monitor data, blood pressure recordings, etc.) and record vital signs, symptoms, treatments, and medical history. Center-Based Cardiac Rehab: 36 center-Based Cardiac Rehab Sessions mHealth: Mobile Health Platform
Number of Participants Who Were Re-hospitalized During the Trial
11 Participants
19 Participants
26 Participants

PRIMARY outcome

Timeframe: Baseline to 3 Months

The percentage of completed visits per participant that were attended from the start of the intervention (baseline) to the end of the intervention (3 months) relative to the number of prescribed visits per participant.

Outcome measures

Outcome measures
Measure
Home-Based Cardiac Rehab + mHealth (HOM+)
n=68 Participants
Participants were provided paper copies of educational content at the time of event/discharge. In addition, these participants were provided access to the same mHealth platform as the CON+ group. Participants in this group were encouraged to exercise three days per week while also completing the additional questionnaires and educational content provided by the mHealth platform in accordance with the CR program. Participation were tracked using web/internet analytics. mHealth: Mobile Health Platform Home-Based Cardiac Rehab: Encouraged to exercise 3 times per week at home
Conventional Center-Based Cardiac Rehab (CON)
n=71 Participants
Participants were prescribed 36 sessions of center-based CR. This includes supervised exercise sessions, cooking demonstrations, didactic lectures, video presentations, group support, and stress management education. During sessions, participants had direct access to the medical director, case manager, registered nurse, exercise physiologist, and stress management specialists. Center-Based Cardiac Rehab: 36 center-Based Cardiac Rehab Sessions
Conventional Center-Based Cardiac Rehab + mHealth (CON+)
n=67 Participants
Participants were prescribed 36 sessions of center-based CR as noted above. In addition, participants were provided access to the mHealth platform which provides "e-Learning modules" with factsheets, videos, quizzes, and questionnaires (coinciding with activities being conducted during the CON program), a Social Network Module allowed patients to communicate via secure network with other patients who were part of their invited network. The Social Network Module also allowed for secure two-way interaction with healthcare providers in the event that patients were experiencing signs or symptoms suggestive of worsening condition. This platform also contained a Personal Health Record Module allowing patients to upload, archive, and retrieve personal health data (e.g. fitness tracker data, heart rate monitor data, blood pressure recordings, etc.) and record vital signs, symptoms, treatments, and medical history. Center-Based Cardiac Rehab: 36 center-Based Cardiac Rehab Sessions mHealth: Mobile Health Platform
Adherence to the Intervention
100 percentage of completed visits
Interval 16.7 to 108.3
66.7 percentage of completed visits
Interval 30.6 to 95.8
88.0 percentage of completed visits
Interval 50.0 to 100.0

SECONDARY outcome

Timeframe: Baseline; 3 Months

Population: 2 participants in the CON arm and 2 participants in the CON+ arm did not complete the BMI measurement at the baseline mark. 9 participants in the CON arm, 12 participants in the CON+ arm and 3 participants in the HOM+ arm did not complete the BMI measurement at the 3-month mark.

The change in body mass index (BMI) measured from baseline to 3 months.

Outcome measures

Outcome measures
Measure
Home-Based Cardiac Rehab + mHealth (HOM+)
n=38 Participants
Participants were provided paper copies of educational content at the time of event/discharge. In addition, these participants were provided access to the same mHealth platform as the CON+ group. Participants in this group were encouraged to exercise three days per week while also completing the additional questionnaires and educational content provided by the mHealth platform in accordance with the CR program. Participation were tracked using web/internet analytics. mHealth: Mobile Health Platform Home-Based Cardiac Rehab: Encouraged to exercise 3 times per week at home
Conventional Center-Based Cardiac Rehab (CON)
n=52 Participants
Participants were prescribed 36 sessions of center-based CR. This includes supervised exercise sessions, cooking demonstrations, didactic lectures, video presentations, group support, and stress management education. During sessions, participants had direct access to the medical director, case manager, registered nurse, exercise physiologist, and stress management specialists. Center-Based Cardiac Rehab: 36 center-Based Cardiac Rehab Sessions
Conventional Center-Based Cardiac Rehab + mHealth (CON+)
n=51 Participants
Participants were prescribed 36 sessions of center-based CR as noted above. In addition, participants were provided access to the mHealth platform which provides "e-Learning modules" with factsheets, videos, quizzes, and questionnaires (coinciding with activities being conducted during the CON program), a Social Network Module allowed patients to communicate via secure network with other patients who were part of their invited network. The Social Network Module also allowed for secure two-way interaction with healthcare providers in the event that patients were experiencing signs or symptoms suggestive of worsening condition. This platform also contained a Personal Health Record Module allowing patients to upload, archive, and retrieve personal health data (e.g. fitness tracker data, heart rate monitor data, blood pressure recordings, etc.) and record vital signs, symptoms, treatments, and medical history. Center-Based Cardiac Rehab: 36 center-Based Cardiac Rehab Sessions mHealth: Mobile Health Platform
Change in Body Mass Index
3 Months
26.8 kg/m^2
Interval 24.3 to 31.2
30.0 kg/m^2
Interval 27.0 to 34.2
28.4 kg/m^2
Interval 25.5 to 32.4
Change in Body Mass Index
Baseline
28.5 kg/m^2
Interval 24.5 to 31.7
29.1 kg/m^2
Interval 26.8 to 35.8
29.5 kg/m^2
Interval 25.8 to 32.6

SECONDARY outcome

Timeframe: Baseline; 3 Months

Population: 10 participants in the CON arm, 12 participants in the CON+ arm and 7 participants in the HOM+ arm did not complete the PHQ-9 at the baseline mark. 30 participants in the CON arm, 32 participants in the CON+ arm and 8 participants in the HOM+ arm did not complete the PHQ-9 at the 3-month mark.

The change in self-reported quality of life assessed using the Patient Health Questionnaire 9-item (PHQ-9) scale used to assess severity of depression. Scoring is calculated by assigning scores of 0, 1, 2, and 3 to the response categories, respectively, of "not at all," "several days," "more than half the days," and "nearly every day." Total score ranges from 0 to 27 where 0 is no depression, 1-4 is minimal depression, 5-9 is mild depression, 10-14 is moderate depression, and 15-19 is moderately severe depression and 20-27 severe depression.

Outcome measures

Outcome measures
Measure
Home-Based Cardiac Rehab + mHealth (HOM+)
n=31 Participants
Participants were provided paper copies of educational content at the time of event/discharge. In addition, these participants were provided access to the same mHealth platform as the CON+ group. Participants in this group were encouraged to exercise three days per week while also completing the additional questionnaires and educational content provided by the mHealth platform in accordance with the CR program. Participation were tracked using web/internet analytics. mHealth: Mobile Health Platform Home-Based Cardiac Rehab: Encouraged to exercise 3 times per week at home
Conventional Center-Based Cardiac Rehab (CON)
n=44 Participants
Participants were prescribed 36 sessions of center-based CR. This includes supervised exercise sessions, cooking demonstrations, didactic lectures, video presentations, group support, and stress management education. During sessions, participants had direct access to the medical director, case manager, registered nurse, exercise physiologist, and stress management specialists. Center-Based Cardiac Rehab: 36 center-Based Cardiac Rehab Sessions
Conventional Center-Based Cardiac Rehab + mHealth (CON+)
n=41 Participants
Participants were prescribed 36 sessions of center-based CR as noted above. In addition, participants were provided access to the mHealth platform which provides "e-Learning modules" with factsheets, videos, quizzes, and questionnaires (coinciding with activities being conducted during the CON program), a Social Network Module allowed patients to communicate via secure network with other patients who were part of their invited network. The Social Network Module also allowed for secure two-way interaction with healthcare providers in the event that patients were experiencing signs or symptoms suggestive of worsening condition. This platform also contained a Personal Health Record Module allowing patients to upload, archive, and retrieve personal health data (e.g. fitness tracker data, heart rate monitor data, blood pressure recordings, etc.) and record vital signs, symptoms, treatments, and medical history. Center-Based Cardiac Rehab: 36 center-Based Cardiac Rehab Sessions mHealth: Mobile Health Platform
Change in Self-Reported Quality of Life
Baseline
1.0 score on a scale
Interval 0.0 to 3.0
2.5 score on a scale
Interval 0.5 to 5.5
3.0 score on a scale
Interval 1.0 to 4.0
Change in Self-Reported Quality of Life
3 Months
0.0 score on a scale
Interval 0.0 to 2.0
1.0 score on a scale
Interval 0.0 to 2.0
1.0 score on a scale
Interval 0.0 to 2.0

Adverse Events

Conventional Center-Based Cardiac Rehab (CON)

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

Conventional Center-Based Cardiac Rehab + mHealth (CON+)

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

Home-Based Cardiac Rehab + mHealth (HOM+)

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

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Thomas Olson, Ph.D., M.S.

Mayo Clinic

Phone: 507-284-4441

Results disclosure agreements

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