Corticosteroid Use and Adherence in Patients Treated with Acthar Gel for Advanced Sarcoidosis

Long-term corticosteroid use in immune-mediated diseases is associated with increased risk of adverse events (AEs) and worsened health-related quality of life (HRQoL). Previous studies report chronic high-dose corticosteroid therapy results in higher rates of healthcare resource use and AE-related medical costs. Recent studies suggest Acthar_® Gel (repository corticotropin injection) is an effective steroid-sparing therapy for sarcoidosis. This study compares the corticosteroid-sparing effect between Acthar Gel and comparators and evaluates the impact of Acthar Gel adherence on reduction of corticosteroid burden.

A retrospective analysis of a large administrative pharmacy and medical claims database (Symphony Health Solutions) was conducted. Patients were included with confirmed ICD-9/10 diagnosis for sarcoidosis in the study period (2014-2020), followed by ≥ 2 Acthar Gel claims or comparators (janus kinase inhibitor (JAKi)/rituximab), ≥ 18 years old, with 12 months coverage pre/post index. Outcomes were compared as change from baseline. Acthar Gel adherence was determined by proportion of days covered in the follow-up period.

The Acthar Gel (n = 735) and comparator (n = 626) cohorts were mostly female (68-72%) between 55 and 58 years old. Compared to the comparator cohort at baseline, Acthar Gel patients had greater any corticosteroid use (80% vs. 56%, p < 0.001), extended use (61% vs. 32%, p < 0.001), and mean average daily dose (6.72 vs. 3.03, p < 0.001). After treatment, Acthar Gel patients had greater reduction from baseline in any corticosteroid use (- 9.0% vs. - 3.2%) and extended use (- 10.0% vs. - 3.0%). In the Acthar Gel adherence cohorts, patients with above average adherence had greater reduction in both measures (- 11.2% vs. - 6.1%; - 11.6% vs. - 7.6%, respectively) than patients with below average adherence. Acthar Gel patients had greater reduction of extended use at all dose levels.

Acthar Gel is associated with reductions in corticosteroid use compared to alternatives. Better adherence is associated with greater reduction in corticosteroid exposure. Key Summary Points.