Telehealth & Remote Measurement Technologies to Improve Medication Adherence in Hypertension

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

207 participants

Study Classification

INTERVENTIONAL

Study Start Date

2011-09-30

Study Completion Date

2013-04-30

Brief Summary

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This study focuses on an important patient behavior, medication-taking, and important physician behaviors: promoting medication regimen adherence in patients and appropriately modifying therapy when existing therapy results in inadequate therapeutic effect. The study will also explore the caregivers' (clinicians) behavior after relevant information about their patients' medication adherence and blood pressure control has been provided to them. The investigators focus on behavior change for patients and physicians and seek to change their behaviors to improve the health care delivery process and outcomes. The study aims at facilitating tertiary prevention of cardiovascular, cerebrovascular, and reno-vascular diseases by promoting better blood pressure control.

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Detailed Description

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The study will use state-of-the-art technologies, including two systems that use a telephone-based platform called TLC (Telephone-Linked Care). The two TLC applications have been developed for patients with hypertension (TLC-HTN) as well as patients who have difficulty adhering to their medication regimen (TLC-MED). The investigators will also use state-of-the-art medication monitoring technology (electronic pill trays) that monitor patients' medication-taking behaviors in the intervention and control arms.

The TLC-HTN system was designed for patients with hypertension (HTN) whose blood pressure (BP) was out of control and who were given a home blood pressure monitor. All study subjects (intervention and control) were asked to take their blood pressure at home on a weekly basis. The system gave them feedback on how the reported blood pressure compared to their previous blood pressure values and goals set by their physician. Using self-reported medication-taking behavior provided to the TLC-MED module, TLC-HTN gave the patient additional feedback that linked their adherence to their blood pressure control. At the end of each weekly TLC-HTN conversation, the system sent a report to the patient's physician that displayed recent and previous blood pressure values, identified trends, compared the blood pressures to the physician's goal for the patient and accepted norms, and displayed anti-hypertensive medication use/adherence levels in a similar manner so that the physician could relate adherence to blood pressure control.

TLC-Medication Adherence (TLC-MED): TLC-MED is an additional module that is added to the TLC chronic disease systems including TLC-HTN, with the purpose of promoting medication regimen adherence. In each TLC conversation, TLC-MED will assess the patient's adherence to the medications prescribed for that disease. In this project, the investigators will evaluate two versions of TLC-MED, one which uses an electronic medication event monitoring system to determine medication taking, and the other which uses patient self-report information for determining the same information. The investigators will compare both the self-report method of obtaining medication-taking behavior/adherence and the electronic pill trays to usual care.

Commercially available electronic pill trays for oral, solid medications (e.g., tablets and capsules) will be used by both arms to assess patient medication adherence along with subject self-report of medication-taking. There are a number of methods for conducting medication event monitoring for solid medications. The investigators will use electronic pill trays, consisting of a pillbox containing 28 cups arranged in a 7x4 matrix. Each cup has a sensor that registers when the cup is opened.

Conditions

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Hypertension

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

HEALTH_SERVICES_RESEARCH

Blinding Strategy

NONE

Study Groups

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Computer Controlled Telephone Counseling

This arm intervenes with subjects and their treating physicians. The intervention is periodic medical adherence promotion counseling for subjects regarding their prescribed HTN medications through a computer-controlled telephone counseling program that has data on subject's recent BP values and their prescribed HTN medications. The subjects' treating physicians receive at regularly scheduled office visits information about subject's recent BP and medication adherence for each prescribed medication and also get physician information and management recommendations

Group Type EXPERIMENTAL

Computer Controlled Telephone Counseling

Intervention Type BEHAVIORAL

The subjects in the intervention arm receive medication adherence counseling through a computer controlled telephone counseling program

Physician information and management recommendations

Intervention Type OTHER

Treating physicians for those subjects in the intervention arm receive through the medical record system a summary of blood pressure values and adherence data and recommendations.

Usual Care

In this arm, patients with hypertension that is not adequately controlled receive usual care from their physicians. Usual care is defined as receiving regular care from the physician and no additional care or intervention from the study.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Computer Controlled Telephone Counseling

The subjects in the intervention arm receive medication adherence counseling through a computer controlled telephone counseling program

Intervention Type BEHAVIORAL

Physician information and management recommendations

Treating physicians for those subjects in the intervention arm receive through the medical record system a summary of blood pressure values and adherence data and recommendations.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* A patient at one of the two primary care practices of General Internal Medicine, or in Family Medicine, Boston Medical Center (BMC), whose Primary Care Physician (PCP) is participating in the study.
* A diagnosis of hypertension on the active problem list.
* BP \> 140/90 (over 130/80 if diabetic) for two or more consecutive visits (any clinic in the hospital, not limited to PCP but excluding Emergency Department(ED)) over the prior 12 months.
* Having been prescribed at least one anti-hypertension medication (currently listed on the list of prescribed medications).
* Has at least one appointment scheduled with his/her PCP within the next six months.
* Age 18 and over.
* Is planning to continue his/her primary care at Boston Medical Center for at least the next 7 months.
* Is willing and able to use the electronic medication tray unassisted to take the study-selected medication for the next seven months.

* Be a primary care physician in General Internal Medicine, BMC, or be a primary care physician in Family Medicine, BMC, or be a resident in General Internal Medicine, BMC.
* Have a patient who is eligible and participates in the study.

Exclusion Criteria

* Planning to move from the Boston area during the study period.
* No home telephone or touch tone service.
* Cannot use a telephone unassisted.
* Is not willing to receive calls at his/her phone during the study period.
* Does not understand conversational English over the telephone.
* Currently enrolled in the TLC-MultiDisease study.
* Is planning to use another electronic medication tray or bottle (such as Medication Events Monitoring Systems (MEMS) to take the study-selected medication for the next seven months.

* Not having a patient or patients in the study.

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No