Systematic review of clinical outcomes of clinical pharmacist roles in hospitalised general medicine patients

Aim The role of clinical pharmacists in the care of hospitalised general medicine patients is evolving from a reactive model of care to a model with an emphasis on interdisciplinary care and more advanced models of care. The purpose of this review was to evaluate the published literature on the effects of roles of clinical pharmacists that extend beyond those activities considered to be standard clinical practice in Australia, on clinical outcomes in hospitalised general medicine patients. Data sources A search of English‐language publications in six databases was conducted. Study selection Peer‐reviewed, English‐language articles were identified across the date range January 2000 to June 2020. Studies were included if they evaluated an inpatient pharmacy service in a general medicine population and the article included a study design with a clear comparator and outcomes such as medication errors or medication appropriateness. Studies evaluating pharmacists’ activities that are considered standard clinical practice for pharmacists in Australia, such as participation on ward rounds, medication reconciliation and patient education were excluded. Results Twelve studies met the inclusion criteria: four evaluating pharmacist‐led anticoagulation or thromboprophylaxis management, one evaluating pharmacist‐led vaccination, three evaluating a pharmacist charting model, two evaluating pharmacist‐led de‐escalation of therapy, one evaluating a pharmacist intervention in patients with chronic kidney disease and one evaluating pharmacist‐led glycaemic control. Conclusions The addition of advanced clinical pharmacist services in the care of general medicine inpatients generally resulted in improved care, with no evidence of harm. Future studies should include multiple sites, larger sample sizes, reproducible interventions and identification of patient‐specific factors that lead to improved outcomes.