Real-world evidence of quality of life improvement in patients with distal ulcerative colitis treated by mesalazine: the Quartz study

Background Distal ulcerative colitis (UC) is responsible for distressing symptoms and reduces quality of life (QoL). Oral and topical formulations of 5-amino-salicylic acid are the first line therapy for mild to moderate distal UC. Objective Our aim was to evaluate the impact of mesalazine treatment for mild to moderate ulcerative proctitis and proctosigmoiditis on patient QoL. Methods Ninety-three patients with mild to moderate ulcerative proctitis and proctosigmoiditis, initiating a treatment with Pentasa, were prospectively included. The primary endpoint was the change from baseline to W8 in patient health-related QoL (HRQoL) as measured by the Short Inflammatory Bowel Disease Questionnaire (SIBDQ) total score. Results More than 80% of patients were prescribed with a rectal formulation, either alone (47.9%) or with an oral formulation (35.1%), and 17.0% of patients were prescribed oral formulation alone. Mean SIBDQ score was improved at W8 in patients affected with mild and moderate disease ( P < 0.001 versus baseline in both groups, as well as in patients who achieved clinical remission ( P < 0.001). Patients who achieved clinical remission at W8 reached a mean change of +6.7 (±7.1), whereas those who did not achieve clinical remission had a mean change of +1.1 (±8.9). Seventy-five per cent of patients had an improvement of their disability index at W8. Fecal incontinence was also improved at W8. Conclusion HRQoL measuring with the SIBDQ is proportionally related to disease activity in patients with distal UC treated with mesalazine.