Mobile Health Behavioral Intervention in Patients With Heart Failure and Diabetes Mellitus

Inclusion Criteria:

≥ 18 years of age
Chronic heart failure, New York Heart Association (NYHA) class II-IV, with ongoing treatment with medications for heart failure for at least 1 month prior to enrollment
Prior diabetes mellitus diagnosis, with ongoing treatment with anti-diabetes medications for at least 1 month prior to enrollment
Adequate clinical stability in the judgment of the investigator to allow participation in study assessments and the intervention
Independent with basic activities of daily living (ADLs), including the ability to ambulate independently
No plan for revascularization (cardiac or peripheral), outpatient continuous intravenous inotrope administration, cardiac transplant or ventricular assist device implantation, or other cardiac surgery within 6 months of randomization
Access to a compatible smart phone (iOS or Android)
Signed informed consent

Exclusion Criteria:

Acute myocardial infarction within prior 4 weeks
Already actively participating in formal, facility-based cardiac rehabilitation
Severe stenotic valvular disease (e.g., severe aortic stenosis)
Implanted left ventricular assist device (LVAD)
Recipient of a heart transplant
Terminal illness other than heart failure with life expectancy < 6 months
Impairment from stroke, injury or other medical disorder that precludes participation in the intervention
Inability or unwillingness to comply with the study requirements