Patient-reported real-world experience of risankizumab on-body device (OBD) for the treatment of Crohn’s disease in the UK (COMMODUS)

Abstract

Objective: to evaluate real-world patient-reported experience with subcutaneous (SC) risankizumab administered by on-body device (OBD) in patients with Crohn’s disease (CD). 

Methods: uncontrolled observational cross-sectional study in five UK units between October 2023 and May 2024. Patients who had received maintenance risankizumab via SC injection of four pre-filled syringes (PFS) self-administered in hospital were switched to OBD self-injection. Self-Injection Assessment Questionnaires (SIAQ) were completed pre- and post-first OBD use. The primary end-point was “Overall, how satisfied are you with your current way of taking your medication (self-injection)?” from post-injection SIAQ. Baseline patient data were collected retrospectively from medical records. 

Results: the study recruited 50 patients with moderate-to-severe CD, 48 completed the study. Most (81%) were satisfied/very satisfied with self-injection using OBD vs only 54% with PFS. Satisfaction with the OBD was highest with home use (90% vs 65%). Confidence was high with the OBD; numerically higher rates of patients were confident in giving themselves an injection in the right way (83% vs 64%), in a clean and sterile way (90% vs 74%) and safely (85% vs 72%) post-OBD than before using OBD. Self-injection using the OBD was reported as easy by 92% and convenient by 83% of participants. Most participants reported that they would continue to use the OBD (82%) and be confident to self-inject at home (81%). The OBD was well tolerated.

Conclusion: the OBD provides a safe, easy to use and convenient way to self-administer risankizumab at home using one injection with improved satisfaction and confidence vs self-administration of four PFS in hospital.

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