Impact of a health-system specialty pharmacy on time to upadacitinib initiation

Purpose Upadacitinib has been found to improve symptoms as early as day 1 in patients with inflammatory bowel disease. As a result, early and timely initiation of upadacitinib is paramount to prevent hospital admission for an acute flare. The purpose of this study was to identify the time to initiation of upadacitinib, comparing external specialty pharmacies (ESPs) to a health-system specialty pharmacy (HSSP).Methods This was a single-center, retrospective study at the University of Chicago Medicine (UCM) Inflammatory Bowel Disease Center and included patients initiated on upadacitinib between March 1, 2022, and April 1, 2023. Data collected included demographics, prior authorization information, appeal information, insurance type, date the prescription was sent, and date the patient initiated therapy (patients were called to confirm the date). The primary outcome evaluated was the days from prescribing to patient initiation. Secondary outcomes included the total time to initiation and the time to notification from insurance regarding determination of a prior authorization or appeal. Patients were excluded if they were lost to follow-up, initiated therapy through alternative means, or had previously initiated upadacitinib.Results A total of 107 patients were initiated on upadacitinib during the study period (n = 18 through the UCM HSSP, n = 89 through an ESP). The median number of days to patient initiation was 3 days (interquartile range, 3-6 days) for the UCM specialty pharmacy vs 9 days (interquartile range, 4-13 days) for ESPs (P = 0.003). A total of 88.9% of patients filling through the UCM specialty pharmacy initiated upadacitinib within 7 days, compared to 47.2% of patients filling through an ESP (P = 0.001). Seven patients needed earlier initiation of therapy to prevent hospital admission.Conclusion This study validates the ability of HSSPs to initiate therapies earlier than ESPs with a particular focus on upadacitinib.