Motivational Interviewing and Medication Review in Coronary Heart Disease (MIMeRiC): Protocol for a Randomized Controlled Trial Investigating Effects on Clinical Outcomes, Adherence, and Quality of Life

Malin Johansson Östbring, Tommy Eriksson, Göran Petersson, Lina Hellström, Malin Johansson Östbring, Tommy Eriksson, Göran Petersson, Lina Hellström

Abstract

Background: Preventive treatment goals for blood pressure and cholesterol levels continue to be unmet for many coronary patients. The effect of drug treatment depends on both its appropriateness and the patients' adherence to the treatment regimen. There is a need for adherence interventions that have a measurable effect on clinical outcomes.

Objective: This study aims to evaluate the effects on treatment goals of an intervention designed to improve patient adherence and treatment quality in secondary prevention of coronary heart disease. A protocol for the prespecified process evaluation of the trial is published separately.

Methods: The Motivational Interviewing and Medication Review in Coronary heart disease (MIMeRiC) trial is a prospective, randomized, outcomes-blinded trial designed to compare individualized follow-up by a clinical pharmacist using motivational interviewing (MI) and medication review with standard follow-up. Patients were randomized to 2 groups after stratification according to their beliefs about medicines. After standard follow-up at the cardiology clinic, patients in the intervention group are seen individually by a clinical pharmacist 2 to 5 times as required over 7 months, at the clinic. The pharmacist reviews each patient's medication and uses MI to manage any problems with prescribing and adherence. The primary study outcome is the proportion of patients who have reached the treatment goal for low-density lipoprotein cholesterol by 12 months after discharge. Secondary outcomes are the effects on patient adherence, systolic blood pressure, disease-specific quality of life, and health care use.

Results: The protocol for this study was approved by the Regional Ethics Committee, Linköping, in 2013. Enrollment started in October 2013 and ended in December 2016 when 417 patients had been included. Follow-up data collection will conclude in March 2018. Publication of the primary and secondary outcome results from the MIMeRiC trial is anticipated in 2019.

Conclusions: The MIMeRiC trial will assess the effectiveness of an intervention involving medication reviews and individualized support. The results will inform the continued development of support for this large group of patients who use preventive medicines for lifelong treatment. The design of this adherence intervention is based on a theoretical framework and is the first trial of an intervention that uses beliefs about medicines to individualize the intervention protocol.

Trial registration: ClinicalTrials.gov NCT02102503; https://ichgcp.net/clinical-trials-registry/NCT02102503 (Archived by WebCite at http://www.webcitation.org/6x7iUDohy).

Keywords: coronary artery disease; medication adherence; medication therapy management; pharmacist; randomized controlled trial.

Conflict of interest statement

Conflicts of Interest: None declared.

©Malin Johansson Östbring, Tommy Eriksson, Göran Petersson, Lina Hellström. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 20.02.2018.

Figures

Figure 1
Figure 1
Study flow chart. Each box represents a separate event. White boxes are standard care events, light gray boxes are study events; BMQ-S: Beliefs about Medicines Questionnaire-Specific; BP: blood pressure; LDL-C: low density lipoprotein cholesterol; QoL: quality of life.
Figure 2
Figure 2
Flow diagram of study participants, status as of April 2017. For those excluded, (i) indicates cognitive impairment or any other condition making interviews or phone calls difficult; (ii) indicates nonparticipation in the standard follow-up at the out-patient clinic; and (iii) indicates prior participation in this study. LDL-C: low-density lipoprotein cholesterol; BP: blood pressure.

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