Implementation of a Pharmacist-Led, Long-Acting, Injectable Cabotegravir/Rilpivirine Program for HIV-1 at Health System-Based Clinics in the New York Metropolitan Area

Long-acting cabotegravir/rilpivirine (LA-CAB/RPV) is the first complete injectable antiretroviral for patients living with HIV. To facilitate patient access to long-acting injectable treatment, a system-wide, pharmacist-led, LA-CAB/RPV transition program was developed at four health system-based New York clinics. Provider referrals were received across four clinics between January 22nd, 2021, and December 31st, 2022. All referrals were evaluated by a pharmacist for clinical eligibility and medication access. The primary outcome was the treatment retention rate defined as the percentage of patients who remained on LA-CAB/RPV at 3 months post-transition. A total of 171 referrals were received, with 73 patients (43%) initiating LA-CAB/RPV. Baseline demographics included a median age of 38 years, 81% patients were male, 41% were African American, and 49% had commercial insurance coverage. The treatment retention rate was 90% at 3 months post-transition. By the end of the study period, 84% of patients who transitioned remained on LA-CAB/RPV. Treatment was discontinued due to reasons such as viral breakthrough (4%), emergence of mutations (4%), and intolerable side effects (4%). Injection site reactions were commonly reported (51%), but only resulting in treatment discontinuation for one patient. A pharmacist-led program can transition a diverse population of patients living with HIV to LA-CAB/RPV. Results from this study further add to clinical experiences with LA-CAB/RPV, demonstrating real-world treatment retention despite more frequent clinic visits for patients.

103. Evaluating The Appropriateness of Vaccine Administration in Patients with Splenectomy

Background

The spleen removes microorganisms from the bloodstream and produces antibodies for enhanced immune response. Patients with asplenia are at increased risk for infections caused by encapsulated organisms and have a 6-fold increased risk of sepsis compared to the general population. Those that acquire an infection have a mortality rate of 80%. The CDC recommends administering the meningococcal, influenza, pneumococcal, and Haemophilus influenzae type B (Hib) vaccine at least 2 weeks before or after splenectomy.

Methods

This retrospective chart review evaluated the appropriateness of vaccine administration for patients undergoing splenectomy at Long Island Jewish Medical Center (LIJMC) from January 2016 to June 2020. Patients were included if they were admitted to LIJMC, 18 years or older, and had splenectomy at LIJMC within previous 7 years. Patients were excluded if they were pregnant, admitted to an outside hospital for splenectomy, or had an unknown time of splenectomy. The primary objective was appropriateness of vaccine administration. Inappropriateness was defined as having at least 1 error with administration, including vaccine omissions, timing of vaccine, sequencing (Pneumovax®23 given before Prevnar13®), vaccine interaction (Menactra® given with Prevnar13®), or duplicated vaccines.

Results

Of the 174 patients screened, 29 patients were included in analysis, with a mean age of 58.2 ± 20.6 years. The splenectomy was elective in 69% of patients and emergent in 31% of patients. The vaccine regimen was given inappropriately in 96.6% of patients. The reasons for inappropriateness were vaccine selection (100%), timing (39.3%), vaccine sequence (39.3%), vaccine interaction (14.3%), and duplicate vaccines (7.1%). Excluding emergent splenectomies, 100% of patients received an inappropriate vaccine regimen. The vaccines were given at least 2 weeks before elective splenectomies in 40% of patients, peri-operatively in 30% of patients, and not given in 25% of patients.

Conclusion

Patients undergoing splenectomy received inappropriate vaccine regimens mainly due to omissions, timing, and sequencing. Prevnar13® should be given before Pneumovax®23 when both are indicated and vaccines should be administered at least 2 weeks before splenectomy.

An orderset was created to mitigate errors with vaccine selection for patients undergoing splenectomy.

Disclosures

All Authors: No reported disclosures.