The overall purpose of this project is to determine the feasibility of conducting a large scale randomized clinical trial that compares remote monitoring of adherence to loop diuretics using a wireless electronic pillcap with usual care among recently hospitalized heart failure patients. The long-term goal of this program of research is to determine the effect of the adherence telemonitoring intervention on medication adherence and hospital readmissions among recently hospitalized heart failure patients.
Approximately one in four patients hospitalized with heart failure is readmitted within 30 days of discharge and more than 50% are readmitted within 6 months of discharge. Heart failure admissions are a major contributor to the enormous health care costs associated with heart failure. Thus far, the identification of effective interventions that prevent unnecessary readmissions has remained elusive. As a result, there is a pressing need to identify novel, cost-effective approaches to reducing heart failure readmissions. A growing body of research suggests that poor adherence to heart failure medications is a major reason for preventable heart failure readmissions. In particular, loop diuretic medications are essential to preventing the cardiopulmonary system from becoming overloaded. Patients who have been recently hospitalized may be especially vulnerable to adherence problems as a result of the stress of the recent hospitalization which commonly induces sleep deprivation, nutritional deficiency, physical deconditioning, cognitive impairment, and even delirium. Recent advances in wireless health now enable us to remotely, unobtrusively, and objectively monitor adherence to heart failure medications in the post-discharge period. Early identification of non-adherence to loop diuretic medications has the prevention to prevent a volume overloaded state that leads to a heart failure readmission. As patients who are non-adherent to their loop diuretics may also be non-adherent to other recommended self-management behaviors, early identification of medication nonadherence may provide the context to identify other gaps in self-management. To test our hypothesis that it is feasible to conduct a randomized trial of wireless, medication adherence monitoring with feedback to patients and clinicians, the investigators will enroll 40 patients who are hospitalized for heart failure and discharged on a diuretic medication. Patients will be randomized to 1) usual heart failure care + telemonitoring adherence to diuretic medications (INT); N=20 or 2) usual heart failure care (CTR); N=20. All patients will be asked to take their diuretic medication from a standard pill bottle covered by an electronic pill cap (GlowCap), but only patients assigned to the intervention arm will have their adherence telemonitored by a study clinician in real-time. Patients will have their adherence to medications measured in this fashion for 30 days after discharge. Patients will be contacted at 30 days to determine if they have been hospitalized and to collect other self-reported outcomes data.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
40
The member of the study team will respond to adherence data using clinical judgment as they would if the information was obtained during clinical care. Specifically, when contacting nonadherent participants, the member of the study team will provide participants with feedback on their electronic adherence; will inquire about potential consequences of missed doses; and will assess and respond to reasons for missed doses.
Columbia University Medical Center
New York, New York, United States
Percentage of days participants take the correct number of doses of their diuretic
Loop diuretic adherence: Adherence to the diuretic medication will be electronically measured using GlowCaps (Vitality Inc.) in the 30 days after hospitalization. Medication adherence will be calculated as the percent of days participants take the correct number of doses of their diuretic. Days when participants are incapable of taking their medication from the GlowCap bottle (e.g., while hospitalized) will be censored from calculations.
Time frame: 30 days post-discharge
Score on the Self Care Heart Failure Index
Heart Failure Symptoms, Self-Efficacy for self-managing heart failure, and Self-Management Behaviors will be measured using Self Care Heart Failure Index
Time frame: 30 days post-discharge
Proportion very or extremely satisfied with heart failure care
Satisfaction with Heart Failure Care will be assessed by asking participants "Overall, how satisfied are you with the care you have been receiving for your heart problems over the last 30 days?" Response options will include: "not at all satisfied", "a little satisfied", "very satisfied," and "extremely satisfied."
Time frame: 30 days post-discharge
Number of readmissions and emergency room visits
Readmissions and emergency room visits will be assessed by contacting participants or their close contacts at 30 days. Hospital records will be reviewed to confirm readmissions, to determine the reason for readmission or emergency room visit (heart failure versus other), and to determine whether it was related to medication nonadherence.
Time frame: 30 days post-discharge
Proportion attending at least 1 scheduled outpatient clinic visit within 30 days of discharge
Attendance at scheduled outpatient clinic visits will be assessed by contacting participants or their close contacts at 30 days. Hospital records will be reviewed, when available, to determine whether and how medication adherence was addressed during the visit.
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Time frame: 30 days post-discharge