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Impact of Pharmacist-Led Interventions on Medication Adherence and Clinical Outcomes in Patients with Hypertension and Hyperlipidemia: A Scoping Review of Published Literature

Authors Elnaem MH, Rosley NFF, Alhifany AA, Elrggal ME, Cheema E

Received 8 April 2020

Accepted for publication 4 June 2020

Published 20 July 2020 Volume 2020:13 Pages 635—645

DOI https://doi.org/10.2147/JMDH.S257273

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2

Editor who approved publication: Dr Scott Fraser


Mohamed Hassan Elnaem,1,2 Nor Fatin Farahin Rosley,1 Abdullah A Alhifany,3 Mahmoud E Elrggal,3 Ejaz Cheema4

1Department of Pharmacy Practice, Faculty of Pharmacy, International Islamic University Malaysia, Kuantan, Malaysia; 2Quality Use of Medicines Research Group, Faculty of Pharmacy, International Islamic University Malaysia, Kuantan, Malaysia; 3Department of Clinical Pharmacy, College of Pharmacy, Umm Al-Qura University, Makkah, Kingdom of Saudi Arabia; 4School of Pharmacy, University of Birmingham, Birmingham B15 2TT, UK

Correspondence: Ejaz Cheema
School of Pharmacy, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
Tel +44-121-4146805
Email E.Cheema@bham.ac.uk

Background: The aim of this study was to provide a scoping review of the impact of pharmacist-led interventions on medication adherence and clinical outcomes in patients with hypertension and hyperlipidemia.
Methods: A scoping review was conducted using pre-defined search terms in three scientific databases, including Google Scholar, ScienceDirect, and PubMed. A multi-stage screening process that considered relevancy, publication year (2009– 2019), English language, and article type (original research) was followed. Review articles, meta-analysis studies, and conference proceedings were excluded. Data charting was done in an iterative process using a study-specific extraction form.
Results: Of the initially identified 681 studies, 17 studies with 136,026 patients were included in the review. Of these, 16 were randomized controlled trials, while the remaining study was a retrospective cohort study. The majority of pharmacist-led interventions were face-to-face counseling sessions (n=8), followed by remote- or telephone-based interventions (n=5) and multi-faceted interventions (n=4). The majority of the studies (n=7) used self-reported adherence measures and pharmacy refill records (n=8) to measure the rate of adherence to prescribed medications. Eleven of the included studies reported a statistically significant (P< 0.05) impact on medication adherence. Overall, twelve studies assessed the effect of the interventions on the clinical outcome measures; of these, only four studies were associated with significant impact.
Conclusion: Pharmacist-led interventions were associated with improved patients’ adherence to their medications but were less likely to be consistently associated with the attainment of clinical outcomes. Face-to-face counseling was the most commonly used intervention; while, the multi-faceted interventions were more likely to be effective in improving the overall outcome measures. The rigorous design of targeted interventions with more frequent follow-ups, careful consideration of the involved medications, and patients’ characteristics could increase the effectiveness of these interventions.

Keywords: adherence, hyperlipidemia, antihypertensive, pharmacists, intervention, pharmacy services

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