Skip to content

The Effect of the MedSentry System on Medication Adherence

The Effect of the MedSentry System on Medication Adherence for Patients With Congestive Heart Failure: A Pilot Study

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01814696
Enrollment
26
Registered
2013-03-20
Start date
2013-03-31
Completion date
2014-10-31
Last updated
2020-09-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Heart Failure

Keywords

Heart Failure, Congestive Heart Failure, Medication Adherence, Medication Compliance, Telemedicine, Telehealth

Brief summary

The goal of this pilot study to evaluate the effect of the MedSentry system, a multi-faceted medication adherence device and reminder system, on medication adherence and clinical outcomes in heart-failure (HF) patients. We will also evaluate the usability and satisfaction derived from using this system. We hypothesize that: 1. The use of the MedSentry system will improve medication adherence in patients with a discharge diagnosis of HF. 2. The improvement in adherence correlates with fewer hospitalizations and emergency department (ED) visits. 3. The improvement in adherence correlates with better health-related quality of life.

Interventions

DEVICEMedSentry System

Subjects will use the MedSentry System and electronic pillbox, to manage their medications.

Sponsors

Massachusetts General Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients who have successfully completed the Partners Connected Cardiac Care Program (CCCP) * Take at least 3 and no more than 10 different daily medications (including both prescription and non-prescription/over the counter medications) to treat Heart Failure (HF) and other comorbid disorders. * Take medications no more than 4 specified times each day (i.e. morning, afternoon, early evening, bedtime). * The patient must be able to open a pill bottle independently. * The patient must be able to sort and manage their own medications. * Hospitalization within the last 24 months. * Have a telephone or cell phone. * Live in the greater Boston area. * The patients must speak, read and write English. * The patients must not be either vision or hearing impaired (i.e., unable to hear an alarm similar to a clock alarm or oven alarm). * Patient must have an Massachusetts General Hospital (MGH) affiliated care provider.

Exclusion criteria

* Dementia or other conditions precluding the participant from providing informed consent or from learning to use the MedSentry pillbox. * Home environment unsuitable for the MedSentry pillbox and other installed equipment. * Awaiting revascularization, cardiac resynchronization or heart transplant. * Patients with a coexisting terminal illness like cancer or Chronic Renal Failure (CRF) requiring dialysis.

Design outcomes

Primary

MeasureTime frameDescription
Medical Outcomes Study (MOS) Adhere3 monthsSubject reported medication adherence. The Medical Outcomes Study (MOS) Adhere medication adherence measure consists of a single question that asks participants How often did you take your medications as prescribed during the past 4 weeks? Responses are recoded into a dichotomous measure of nonadherent (none, a little, some of the time) and adherent (most, all of the time).

Secondary

MeasureTime frameDescription
Number of Participants With 1 or More Hospitalizations.3 months
Number of Emergency Department (ED) Visits.3 months
Number of Participants With 1 or More Emergency Department (ED) Visits.3 months
Hospitalization, Length of Stay (Days)3 months
Minnesota Living With Heart Failure Questionnaire (MLHFQ) Total Summary ScoreBaseline, end 3 monthsHealth-related quality of life is measured using the Minnesota Living with Heart Failure Questionnaire (MLHFQ). The questionnaire consists of 21 items that assess the impact of HF and HF treatment on key physical, emotional, and social dimensions of a patient's life during the past four weeks. Responses are coded from 0 = does not apply and 1 = very little to 5 = very much. A higher score represents a greater negative HR-related impact on quality of life.
Number of Hospitalization Visits.3 months

Countries

United States

Participant flow

Recruitment details

Participants were recruited from a list of HF patients who had successfully completed a HF telemonitoring program at Massachusetts General Hospital (MGH) or Brigham & Women's Hospital (BWH) and had been hospitalized in the previous 24 months.

Participants by arm

ArmCount
Control
Subjects will continue to receive usual medical care from their doctor(s).
14
Intervention
Subjects will continue to receive usual medical care from their doctor(s). Subjects will use the MedSentry System and electronic pillbox, to manage their medications. MedSentry System: Subjects will use the MedSentry System and electronic pillbox, to manage their medications.
11
Total25

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyRandomized to wrong group10
Overall StudyWithdrawal by Subject10

Baseline characteristics

CharacteristicInterventionTotalControl
Age, Continuous68.4 years
STANDARD_DEVIATION 11.8
71.7 years
STANDARD_DEVIATION 11.2
74.4 years
STANDARD_DEVIATION 10.4
Education Level
1 or more years of college
7 participants18 participants11 participants
Education Level
Less than 1 year college
4 participants7 participants3 participants
Internet User
Internet User
6 participants16 participants10 participants
Internet User
Non-Internet User
5 participants9 participants4 participants
Lives Alone
Lives Alone
4 participants10 participants6 participants
Lives Alone
Lives with Others in Household
7 participants15 participants8 participants
Marital Status
Married
4 participants11 participants7 participants
Marital Status
Non-married
7 participants14 participants7 participants
Medical Outcomes Study (MOS) Adhere
Adherent
7 participants18 participants11 participants
Medical Outcomes Study (MOS) Adhere
Non-adherent
4 participants7 participants3 participants
Minnesota Living with Heart Failure Questionnaire (MLHFQ) Emotional Score7.2 units on a scale
STANDARD_DEVIATION 7.7
6.5 units on a scale
STANDARD_DEVIATION 6.7
5.9 units on a scale
STANDARD_DEVIATION 6.2
Minnesota Living with Heart Failure Questionnaire (MLHFQ) Physical Score21.9 units on a scale
STANDARD_DEVIATION 11.8
15.7 units on a scale
STANDARD_DEVIATION 12.7
10.8 units on a scale
STANDARD_DEVIATION 11.4
Minnesota Living with Heart Failure Questionnaire (MLHFQ) Total Score43.7 units on a scale
STANDARD_DEVIATION 25.9
34.3 units on a scale
STANDARD_DEVIATION 25.6
26.2 units on a scale
STANDARD_DEVIATION 23.1
Mobile Phone Ownership
Cellphone
7 participants18 participants11 participants
Mobile Phone Ownership
No mobile phone
2 participants3 participants1 participants
Mobile Phone Ownership
Smartphone
2 participants4 participants2 participants
NYHA Functional Classification
Class 1
1 participants12 participants11 participants
NYHA Functional Classification
Class 2
9 participants10 participants1 participants
NYHA Functional Classification
Class 3
1 participants2 participants1 participants
NYHA Functional Classification
Class 4
0 participants0 participants0 participants
NYHA Functional Classification
Unknown
0 participants1 participants1 participants
Personal Health Questionnaire Depression Scale, 8-Items (PHQ-8)6.8 units on a scale
STANDARD_DEVIATION 4.5
5.0 units on a scale
STANDARD_DEVIATION 4.8
3.5 units on a scale
STANDARD_DEVIATION 4.6
Race/Ethnicity, Customized
Non-White
2 participants3 participants1 participants
Race/Ethnicity, Customized
White
9 participants22 participants13 participants
Region of Enrollment
United States
11 participants25 participants14 participants
Self-Rated Health
Excellent
0 participants1 participants1 participants
Self-Rated Health
Fair
5 participants11 participants6 participants
Self-Rated Health
Good
5 participants10 participants5 participants
Self-Rated Health
Poor
1 participants1 participants0 participants
Self-Rated Health
Very Good
0 participants2 participants2 participants
Sex: Female, Male
Female
4 Participants9 Participants5 Participants
Sex: Female, Male
Male
7 Participants16 Participants9 Participants
Using a Medication Reminder Tool
Not using a medication reminder
4 participants7 participants3 participants
Using a Medication Reminder Tool
Using a medication reminder
7 participants18 participants11 participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
0 / 140 / 11
serious
Total, serious adverse events
7 / 143 / 11

Outcome results

Primary

Medical Outcomes Study (MOS) Adhere

Subject reported medication adherence. The Medical Outcomes Study (MOS) Adhere medication adherence measure consists of a single question that asks participants How often did you take your medications as prescribed during the past 4 weeks? Responses are recoded into a dichotomous measure of nonadherent (none, a little, some of the time) and adherent (most, all of the time).

Time frame: 3 months

Population: Participants who completed questions on enrollment and closeout survey.

ArmMeasureGroupValue (NUMBER)
ControlMedical Outcomes Study (MOS) AdhereAdherent9 participants
ControlMedical Outcomes Study (MOS) AdhereNon-adherent4 participants
InterventionMedical Outcomes Study (MOS) AdhereAdherent8 participants
InterventionMedical Outcomes Study (MOS) AdhereNon-adherent3 participants
p-value: 0.605Fisher Exact
Secondary

Hospitalization, Length of Stay (Days)

Time frame: 3 months

Population: Intention to treat analysis.

ArmMeasureGroupValue (MEAN)Dispersion
ControlHospitalization, Length of Stay (Days)Heart Failure Related1.36 daysStandard Deviation 2.68
ControlHospitalization, Length of Stay (Days)All cause2.34 daysStandard Deviation 3.13
ControlHospitalization, Length of Stay (Days)Non Heart Failure Related1.07 daysStandard Deviation 2.06
InterventionHospitalization, Length of Stay (Days)Heart Failure Related0.18 daysStandard Deviation 0.6
InterventionHospitalization, Length of Stay (Days)All cause0.36 daysStandard Deviation 1.21
InterventionHospitalization, Length of Stay (Days)Non Heart Failure Related0.18 daysStandard Deviation 0.6
Comparison: All causep-value: 0.034Wilcoxon rank-sum test
Comparison: Heart failure relatedp-value: 0.196Wilcoxon rank-sum test
Comparison: Non heart failure relatedp-value: 0.21Wilcoxon rank-sum test
Secondary

Minnesota Living With Heart Failure Questionnaire (MLHFQ) Total Summary Score

Health-related quality of life is measured using the Minnesota Living with Heart Failure Questionnaire (MLHFQ). The questionnaire consists of 21 items that assess the impact of HF and HF treatment on key physical, emotional, and social dimensions of a patient's life during the past four weeks. Responses are coded from 0 = does not apply and 1 = very little to 5 = very much. A higher score represents a greater negative HR-related impact on quality of life.

Time frame: Baseline, end 3 months

ArmMeasureValue (MEAN)Dispersion
ControlMinnesota Living With Heart Failure Questionnaire (MLHFQ) Total Summary Score28.2 units on a scaleStandard Deviation 22.3
InterventionMinnesota Living With Heart Failure Questionnaire (MLHFQ) Total Summary Score62.2 units on a scaleStandard Deviation 20.6
p-value: 0.002t-test, 2 sided
Secondary

Number of Emergency Department (ED) Visits.

Time frame: 3 months

Population: Intention to treat analysis.

ArmMeasureGroupValue (NUMBER)
ControlNumber of Emergency Department (ED) Visits.All cause7 participants
ControlNumber of Emergency Department (ED) Visits.Heart Failure Related3 participants
ControlNumber of Emergency Department (ED) Visits.Non Heart Failure Related4 participants
InterventionNumber of Emergency Department (ED) Visits.All cause4 participants
InterventionNumber of Emergency Department (ED) Visits.Heart Failure Related1 participants
InterventionNumber of Emergency Department (ED) Visits.Non Heart Failure Related3 participants
Comparison: All causep-value: 0.497Wilcoxon rank-sum test
Comparison: Heart failure relatedp-value: 0.413Wilcoxon rank-sum test
Comparison: Non-heart failure ED visitsp-value: 0.944Wilcoxon rank-sum test
Secondary

Number of Hospitalization Visits.

Time frame: 3 months

Population: Intention to treat analysis.

ArmMeasureGroupValue (NUMBER)
ControlNumber of Hospitalization Visits.All cause8 participants
ControlNumber of Hospitalization Visits.Heart Failure Related4 participants
ControlNumber of Hospitalization Visits.Non Heart Failure Related4 participants
InterventionNumber of Hospitalization Visits.All cause2 participants
InterventionNumber of Hospitalization Visits.Heart Failure Related1 participants
InterventionNumber of Hospitalization Visits.Non Heart Failure Related1 participants
Comparison: All causep-value: 0.057Wilcoxon rank-sum test
Comparison: Heart failure relatedp-value: 0.236Wilcoxon rank-sum test
Comparison: Non heart failure relatedp-value: 0.236Wilcoxon rank-sum test
Secondary

Number of Participants With 1 or More Emergency Department (ED) Visits.

Time frame: 3 months

Population: Intention to treat analysis.

ArmMeasureGroupValue (NUMBER)
ControlNumber of Participants With 1 or More Emergency Department (ED) Visits.Heart Failure Related3 participants
ControlNumber of Participants With 1 or More Emergency Department (ED) Visits.Non Heart Failure Related4 participants
ControlNumber of Participants With 1 or More Emergency Department (ED) Visits.All Cause7 participants
InterventionNumber of Participants With 1 or More Emergency Department (ED) Visits.Heart Failure Related1 participants
InterventionNumber of Participants With 1 or More Emergency Department (ED) Visits.Non Heart Failure Related3 participants
InterventionNumber of Participants With 1 or More Emergency Department (ED) Visits.All Cause4 participants
Comparison: Heart failure related ED visitsp-value: 0.604Fisher Exact
Comparison: Non-heart failure related ED visitsp-value: 1Fisher Exact
Comparison: All cause ED visitsp-value: 0.677Fisher Exact
Secondary

Number of Participants With 1 or More Hospitalizations.

Time frame: 3 months

Population: Intention to treat analysis.

ArmMeasureGroupValue (NUMBER)
ControlNumber of Participants With 1 or More Hospitalizations.Heart Failure Related4 participants
ControlNumber of Participants With 1 or More Hospitalizations.Non Heart Failure Related4 participants
ControlNumber of Participants With 1 or More Hospitalizations.All Cause7 participants
InterventionNumber of Participants With 1 or More Hospitalizations.Heart Failure Related1 participants
InterventionNumber of Participants With 1 or More Hospitalizations.Non Heart Failure Related1 participants
InterventionNumber of Participants With 1 or More Hospitalizations.All Cause1 participants
p-value: 0.341Fisher Exact
p-value: 0.042Fisher Exact

Source: ClinicalTrials.gov · Data processed: Mar 1, 2026