P1145 Assessing disease control in inflammatory bowel disease (IBD) – a real world cross-sectional study in the UK

Abstract

Abstract Background There is a paucity of data on disease control in patients with inflammatory bowel disease (IBD) in clinical practice. The Proportion Of suboptimal Disease Control And Strategy of Treatment in IBD (PODCAST-IBD) multicentre, non-interventional study aimed to quantify real-world rates of disease control using the STRIDE-II recommendations, explore contributors to, and the economic burden of, suboptimal disease control. Methods Cross sectional assessment of patients with IBD attending routine clinic appointments was carried out in four UK centres between Oct 2022 and Jan 2023. Clinician-reported outcomes, patient-reported outcomes and retrospective data from medical chart review were used to assess IBD control against red flags aligned to the STRIDE-II recommendations (Table). Health care resource utilisation (HCRU) was calculated using NHS reference costs. Results Data was available from 198 patients (Crohn's disease [CD]: 103, ulcerative colitis [UC]: 95) and most were currently receiving long-term IBD-specific treatment (CD: 85%, UC: 78%). IBD was suboptimally controlled in 52.4% (54/103) of patients with CD and 45.3% (49/95) with UC. Impaired quality of life (QOL), defined as Short inflammatory bowel disease questionnaire (SIBDQ) score <50, was the most frequent contributor to suboptimal disease control for both UC and CD. Other frequent contributors were systemic steroid overuse, extraintestinal manifestations (EIM), failure to achieve clinical improvement and perianal disease (Figure). Suboptimal disease control has a detrimental impact on fatigue and disability, demonstrated by lower (indicating more fatigue) mean total FACIT-F score in suboptimally controlled disease (CD: 81.5 vs 125, UC: 87.4 vs 122.8) and IBD Disk, a 10-item self-questionnaire used to assess IBD-related disability. HCRU more than doubled in patients with suboptimal vs optimal control (CD: £4,746 vs £1,924; UC: £2,428 vs £1,121), driven by more hospital admissions and emergency room visits in patients with suboptimal disease control. Patients with suboptimal disease control had higher rates of work productivity loss than those with optimal control (CD: 41.7% vs 11.9%, UC: 38.0% vs 22.6%). Conclusion This UK cross-sectional study found that IBD was suboptimally controlled in around one-half of patients based on STRIDE-II recommendations. Of those with suboptimally controlled disease one-third had impaired QOL making it the most common contributor. Suboptimal control of IBD had a considerable economic impact; HCRU more than doubled and productivity fell. Physicians could consider regular QOL assessments to prompt timely disease monitoring to enable identification of early active disease and ensure appropriate treatment.