Improving Antihypertensive Medication Adherence

Status Completed

Clinical Trial Summary

Poor adherence to antihypertensive medications is associated with morbidity, and data suggest that substance abuse may contribute to poor adherence. Contingency management (CM), an intervention highly efficacious for improving outcomes of substance abusers, shows promise in improving medication adherence in a handful of small trials. CM involves providing tangible reinforcement each time the behavior (medication ingestion) is exhibited. Thus far, studies evaluating CM for increasing medication adherence have utilized MEMS caps, but reinforcement of adherence via MEMS caps is done relatively infrequently and with delay, hindering its efficacy. A widely utilized technology that may be more appropriate for reinforcing medication adherence is cell phones, which can record the process of pill ingestion through video functions. As regular monitoring and feedback is important in the efficacy of CM, patients can be provided with daily messages regarding adherence and CM earnings. In this pilot study, we propose to randomize 40 hypertensive substance abusing patients with suboptimal adherence to antihypertensive medications to one of two 12-week treatment conditions: (1) usual care, or (2) usual care with cell phone monitoring and CM. In the CM condition, patients will carry a cell phone and record and send in time- and date-stamped self videos of medication ingestion. These patients will receive congratulatory messages or reminders about adherence, and they will earn vouchers each time medication ingestion occurs at the appropriate time, along with bonuses for sustained adherence. We hypothesize that the CM condition will improve self report and pill count measurements of medication adherence and that it will result in decreased blood pressure. Results from this study may have widespread implications for the use of cell phones as a novel technology to improve medication adherence.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01296594
Study type	Interventional
Source	UConn Health
Contact
Status	Completed
Phase	N/A
Start date	February 2011
Completion date	July 2012

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