1304. Pharmacist Impact on HIV Management in a Psychiatric Patient Population

BACKGROUND: Patients with mental illnesses are more than four times more likely to have human immunodeficiency virus (HIV) compared with the general population. HIV management can be especially challenging in these patients due to potential substance abuse, drug interactions, and nonadherence. The purpose of this study was to determine the impact of pharmacist management of antiretroviral (ARV) therapy in a psychiatric patient population. METHODS: This is an institutional review board-approved, single-center, retrospective study of patients admitted to a psychiatric hospital with an order for one or more ARV medication(s) between October 2016 and March 2017 (no pharmacist involvement), October 2017 and March 2018 (partial pharmacist involvement), and November 2018 and January 2019 (consistent pharmacist involvement). Patients were excluded if less than 18 years of age, pregnant, incarcerated, or taking ARV medication(s) for a non-HIV indication. The primary outcome was difference in appropriateness of ARV therapy prior to and during pharmacist involvement. Secondary outcomes were appropriateness of opportunistic infection (OI) prophylaxis and laboratory testing. RESULTS: A total of 37 patients were included per group. A greater number of appropriate ARV regimens were initiated with partial pharmacist involvement compared with no pharmacist involvement (62% vs. 32%, P = 0.0096), as well as with consistent pharmacist involvement compared with partial pharmacist involvement (84% vs. 62%, P = 0.0327). There was a trend toward increased HIV viral load draws with partial vs. no pharmacist involvement (54% vs. 43%, P = 0.24) and additionally with consistent vs. partial pharmacist involvement (62% vs. 54%, P = 0.32). With consistent pharmacist involvement, more patients had a resulted CD4 cell count (65%) than with both partial and no pharmacist involvement (57%). Of the patients requiring OI prophylaxis, appropriate prophylaxis was initiated in more patients with consistent pharmacist involvement (57%) than with partial pharmacist involvement (50%) or no pharmacist involvement (11%). CONCLUSION: Pharmacist involvement in HIV management in a psychiatric patient population increased appropriateness of ARV therapy, laboratory testing, and OI prophylaxis. DISCLOSURES: All authors: No reported disclosures.