Evaluating a Pharmacist-Led Opioid Stewardship Initiative at an Urban Teaching Hospital

Background: Deaths due to overdose from illicit drugs have risen in Canada, despite various community-led harm reduction programs. There have been limited pharmacist-led inpatient initiatives aimed at reducing opioid harm. The authors' group recently developed and implemented the Medication and Risk Factor Review, Optimize, Refer at Risk Patients, Educate and Plan (MORE) tool, a systematic checklist designed to help pharmacists follow and enhance the safety of in-hospital opioid prescribing. Objectives: To evaluate the impact of a pharmacist-led opioid stewardship program utilizing the MORE tool in the care of patients at one tertiary teaching hospital. Methods: This study involved a review of health care records for patients admitted to general surgery and internal medicine clinical teaching units at a tertiary hospital between September 10 and December 31, 2018, for whom opioids were prescribed during the hospital stay. A descriptive data analysis was performed for patients who underwent assessment with the MORE tool. Results: Of the 210 patients who met the initial eligibility criteria, including in-hospital opioid therapy for at least 3 days, 50 were assessed by a pharmacist using the MORE tool. For 40 (80%) of these patients, the pharmacist recommended an intervention, and 35 (87.5%) of these interventions were accepted by the prescriber. Among all 50 patients, the most common pharmacist interventions were adding or optimizing non-opioid pain medications (23 patients [46%]), decreasing opioid dose or frequency (15 patients [30%]), and adding a bowel regimen (9 patients [18%]). Conclusions: Most patients who underwent assessment by a pharmacist had risk factors for adverse events from opioid prescriptions and/or suboptimal orders and drug combinations. The MORE tool provided a guided approach for pharmacists to make targeted interventions aimed at improving opioid safety. A dedicated opioid stewardship pharmacist might be able to provide additional benefit.