An Evaluation of Pharmacist-Led Interventions for Inpatient HIV-Related Medication Errors

Background: Inpatient HIV-related medication errors occur in up to 86% of patients. Objective: To evaluate the number of antiretroviral therapy (ART)- and opportunistic infection (OI)-related medication errors following the implementation of pharmacist-directed interventions. Methods: This quasi-experiment assessed adult patients with HIV who received ART, OI prophylaxis, or both from December 1, 2014, to February 28, 2017 (pre-intervention) or December 1, 2017, to February 28, 2018 (post-intervention). Pre-intervention patients were assessed retrospectively; verbal and written education were provided (intervention); prospective audit and feedback was conducted for post-intervention patients. The primary outcome was rate of ART errors between groups. Secondary outcomes included rate of OI errors, time to resolution of ART and OI errors, types of errors, and rate of recommendation acceptance. Results: Sixty-seven patients were included in each group. ART errors occurred in 44.8% and 32.8% (P = .156), respectively. OI prophylaxis errors occurred in 11.9% versus 9% (P = .572), respectively. Medication omission decreased significantly in the post-intervention group (31.3% vs 11.9%; P = .006). Pharmacist-based interventions increased in the post-intervention group (6.3% vs 52.9%; P = .001). No statistical difference was found in time to error resolution (72 vs 48 hours; P = .123), but errors resolved during admission significantly increased (50% vs 86.8%; P < .001). No difference was found in rate of intervention acceptance (100% vs 97%). Conclusion and Relevance: ART and OI prophylaxis errors resolved a day faster in the pharmacist-led, post-intervention period, and there was a trend toward error reduction. Future interventions should target prescribing errors on admission using follow-up education and evaluation of medication reconciliation practices in HIV-infected patients.