P328 Holistic well-being as Patient-reported outcomes (PROs) in translational IBD research: Prospective capture of CUCQ32 as study endpoints for mechanistic biomarker MUSIC/GIDAMPs study.

Abstract

Background There is increasing recognition of ‘holistic’ wellbeing as a key target in the management of IBD. Patient-reported outcomes (PROs) capture the impact of IBD on social, emotional and general wellbeing. Recently, regulatory bodies such as FDA/EMA mandates the study of PROs in interventional clinical trials. However, the role of PROs has never been investigated as a potential end-point in translational scientific research in IBD Methods CUCQ32 is a 32-question form that captures well-being of IBD patients including aspects of fatigue/anxiety/sexual/emotional health – score range from 0-272 (↑score correlating with worse quality QoL). We prospectively captured CUCQ32-PROs in our on-going MUSIC (Cohort 1) and GI-DAMPs (Cohort 2) IBD biomarker studies (www.musicstudy.uk) based in Edinburgh, Glasgow and Dundee (2018-present, ~total n=700 patients recruited). MUSIC is a prospective 12-month longitudinal study (over 5 time points) following active IBD patients in response to current drug treatment whilst GI-DAMPs is a cross-sectional study across IBD disease activity at one-time point. CUCQ32-PROs has been recorded since 2021 with 163 data-points captured. CUCQ32 were filled independently by patients. Results In IBD, CUCQ32-PROs scores were high with medians of 113 (IQR of 67.5-152.2) and 132 (IQR of 91-179) in Cohorts 1 and 2 respectively. In MUSIC Cohort 1, CUCQ32 decreased in response to treatment 113→62→58→45→30 over 3-monthly intervals. CUCQ32 scores are significantly correlated to clinical indices of disease activity, SCCAI for UC (Cohort 1, p=0.003/Cohort 2, p<0.001) and HBI for CD (Cohort 1, p<0.001/Cohort 2, p<0.001). Of interest, no correlation was observed with CRP and faecal calprotectin. Notably, although overall CUCQ32 scores associated with active disease, those deemed in ‘clinical remission’ continue to have high score (median 154 vs. 87 respectively, p=0.06). High CUCQ32 scores were observed even in those achieving complete mucosal healing (defined as either endoscopic SESCD or UCEIS score of 0) from longitudinal prospective endoscopic follow-up; median decrease from 116 (baseline) to 55 (6-months SESCD/UCEIS =0), paired data available in n=14 patients. There is no statistical correlation with endoscopic mucosal healing (p=0.6; in 34 patients). Conclusion Although patient wellbeing improved with medical treatment in IBD and PROs are correlated with clinical indices of IBD activity, high CUCQ32 (thereby poor quality of life) scores were observed in traditional categorisation of ‘clinical remission’. This suggests a far-reaching impact of IBD beyond gut-related signs/symptoms. Our current work incorporates PROs into our scientific biomarker studies and molecular analyses) and will be the first in IBD, to our knowledge.