Improving medication adherence in patients with cardiovascular disease: A systematic review

Rosemary Hines Fuller, Pablo Perel, Tamara Navarro-Ruan, Robby Nieuwlaat, Robert Brian Haynes, Mark D. Huffman*

*Corresponding author for this work

Research output: Contribution to journalReview article

14 Scopus citations

Abstract

Objective: To evaluate and compare the effect of interventions for improving adherence to medications for atherosclerotic cardiovascular disease (ASCVD) secondary prevention. Methods: We extracted eligible trials from a 2014 Cochrane systematic review on adherence for any condition. We updated the search from CENTRAL, Medline, Embase, PsycINFO, CINAHL, Sociological Abstracts and trial registers through November 2016. Study reports needed to be from a randomised controlled trial, incorporate participants identified as having ASCVD and interventions aimed at improving adherence to medicines for secondary prevention of ASCVD and measure both adherence and a clinical outcome. Two reviewers independently determined the eligibility of studies, extracted data and conducted a narrative synthesis. Results: We identified 17 trials (n=17 448 participants). Most trials had high risk of bias in at least one domain. The intervention group adherence rates ranged from 44%to99% and the comparator group adherence rates ranged from 13% to 96%. Three distinct interventions reported improvements in both adherence and clinical outcomes: short message service (65% vs 13% of participants with high adherence in the intervention vs control group), a fixed-dose combination pill (86% vs 65% adherence, risk ratio of being adherent, 1.33; 95% CI 1.26 to 1.41) and a community health worker-based intervention (97% in the intervention group compared with 92% in the control group; OR=2.62, 95% CI 1.32 to 5.19). Conclusions: We identified three interventions that demonstrated improvements in adherence and clinical outcomes. Ongoing, longer-term trials will help determine whether short-term changes in adherence can be maintained and lead to differences in clinical events.

Original languageEnglish (US)
Pages (from-to)1238-1243
Number of pages6
JournalHeart
Volume104
Issue number15
DOIs
StatePublished - Aug 1 2018

Keywords

  • coronary artery disease
  • medication adherence
  • systemic review

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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