Economic evaluation of home medication review by community pharmacists (HMR-CP) for patients with type 2 diabetes mellitus (T2DM)

Integrating design thinking and implementation science principles in delivering a medication review service in the community pharmacy setting-An implementation testing study

BACKGROUND

Medication review (MR) services are evidenced-based practices in which a systematic assessment of a patient's medication is conducted, primarily aiming to optimize drug therapy and minimize adverse drug events through pharmacist interventions. Although studies show that MR services are effective, the implementation of MR services in Malaysia has been challenging due to several barriers. An MR services blueprint was developed to be adapted to the Malaysian community pharmacy setting as part of tailoring strategies.

OBJECTIVE

Through utilizing the design thinking triple diamond model and implementation science principles, a powerful guide for healthcare researchers and stakeholders to assist with effective service implementation, this study aimed to evaluate the implementation testing and observe the effectiveness of the developed MR service blueprint.

METHOD

The study utilizes an effectiveness-implementation Type 3 hybrid implementation science framework conducted from May 2021 to April 2022. Employing a qualitative ethnographic approach, researchers observed pharmacy study sites during the implementation of MR services. Both qualitative and quantitative data were collected across exploration, preparation, testing, and operational phases. Implementation outcomes evaluated include phases, reach, fidelity, acceptability, as well as implementation barriers and strategies. MR intervention outcomes included service characteristics and the number and type of drug-related problems and interventions offered.

RESULTS

17 community pharmacists were invited to pilot the MR service blueprint for six months in their setting. Of this, 78.5% (n = 11) of the pharmacies reached the testing phase, and 36% (n = 4) reached the implementation phase. Fifty-four patients were in the study, giving an implementation reach of 70%. The majority of surveyed patients expressed satisfaction with the service. The total DRP identified was 133, and 64 interventions were provided by the pharmacists. Facilitation strategies such as "Engage stakeholders by creating ownership of the change" and "Equip stakeholders with training" are needed to overcome the barriers.

CONCLUSION

This study marked the beginning of successful MR service implementation at Malaysian community pharmacies. Future studies with multi-level partnered strategies are required to reach full implementation and sustainability.

Cost-Effectiveness of Pharmacist Care in Diabetes Management: A Systematic Review

INTRODUCTION

In recent years, the role of pharmacists has undergone significant transformation to become more patient-centered and involved in managing chronic diseases. Nonetheless, it remains unclear whether pharmacist involvement in diabetes management is cost-effective. This study aimed to systematically review the cost-effectiveness and reporting quality in comprehensive economic evaluations of pharmacist management compared to standard care in diabetes.

METHODS

Eligible studies included cost-effectiveness analyses employing pharmacist professional services as the intervention for diabetes. A literature search was conducted in the bibliographic databases Pubmed, Scopus, China National Knowledge Infrastructure (CNKI), and the International Health Technology Assessment (HTA) database from their inception until July 2023. Two independent reviewers performed title, abstract, full-text screening, and data abstraction and assessed the quality of reporting and methodological approaches using the Consolidated Health Economic Evaluation Reporting Standards (CHEERS 2022) checklists.

RESULTS

Twelve studies were identified with an average research quality score of 19.8, including cost-utility (n = 5) and cost-effectiveness (n = 7) analyses, with only four studies rated as high quality. The efficacy data were derived from randomized controlled trials (n = 7), retrospective studies (n = 2), and published literature sources (n = 2). Half of the included studies were conducted in high-income countries, while the other half was in upper-middle and lower-middle-income countries, respectively. Despite significant variations in the cost of pharmacist intervention, consistent findings demonstrate that pharmacist involvement in diabetes management is more cost-effective or even cost-saving than standard care, primarily attributed to better glycemic control, enhanced patient compliance, and reduced risks of medication-related problems.

CONCLUSION

This systematic review substantiates that pharmacist involvement in diabetes management is cost-effective compared with standard care. However, the overall quality of reporting needs to be improved, and high-quality evidence is urgently needed to support healthcare decision-making in pharmacy practice.

A systematic review of economic evaluations of pharmacist services

BACKGROUND

Challenges to the provision of health care are occurring internationally and are expected to increase in the future, further increasing health spending. As pharmacist roles are evolving and expanding internationally to provide individualised pharmaceutical care it is important to assess the cost-effectiveness of these services.

OBJECTIVES

To systematically synthesise the international literature regarding published economic evaluations of pharmacy services to assess their cost-effectiveness and clinical outcomes.

METHODS

A systematic review of economic evaluations of pharmacy services was conducted in MEDLINE, EMBASE, PubMed, Scopus, Web of Science, CINAHL, IPA and online journals with search functions likely to publish economic evaluations of pharmacy services. Data were extracted regarding the interventions, the time horizon, the outcomes and the incremental cost-effectiveness ratio. Studies' quality of reporting was assessed using the Consolidated Health Economic Evaluation Reporting Standard (CHEERS) statement.

RESULTS

Seventy-five studies were included in the systematic review, including 67 cost-effectiveness analyses, 6 cost-benefit analyses and 2 cost-consequence analyses. Of these, 57 were either dominant or cost-effective using a willingness-to-pay threshold of NZ$46 645 per QALY. A further 11 studies' cost-effectiveness were unable to be evaluated. Interventions considered to be most cost-effective included pharmacist medication reviews, pharmacist adherence strategies and pharmacist management of type 2 diabetes mellitus, hypertension and warfarin/INR monitoring. The quality of reporting of studies differed with no studies reporting all 28 items of the CHEERS statement.

CONCLUSIONS

There is strong economic evidence to support investment in extended pharmacist services, particularly those focussed on long-term chronic health conditions.

Economic Evaluation of Health Behavior Interventions to Prevent and Manage Type 2 Diabetes Mellitus in Asia: A Systematic Review of Randomized Controlled Trials

Health behavior interventions implemented in Asian countries often lack economic evaluations that effectively address the problems of type 2 diabetes mellitus. This review systematically assessed the existing literature on economic evaluation of health behavior interventions to prevent and manage type 2 diabetes mellitus for people living in Asian countries. Eligible studies were identified through a search of six bibliographic databases, namely, PubMed, Scopus, Public Health Database by ProQuest, Cumulative Index to Nursing and Allied Health Literature Complete, Web of Science, and Google Scholar. Randomized controlled trials of health behavior interventions and studies published in the English language from January 2000 to May 2022 were included in the review. The search yielded 3867 records, of which 11 studies were included in the review. All included studies concluded that health behavior interventions were cost-effective. Eight of these studies undertook an evaluation from a health system perspective, two studies used both societal and health system perspectives, and one study utilized a societal and multi-payer perspective. This review identified the time horizon, direct and indirect medical costs, and discount rates as the most important considerations in determining cost effectiveness. These findings have implications in extending health behavior interventions to prevent and manage type 2 diabetes mellitus in low-resource settings, and are likely to yield the most promising outcomes for people with type 2 diabetes mellitus.