P461 Intolerance to 5-aminosalicylate is a risk of poor prognosis in ulcerative colitis patients. (15th January 2020)

• Record Type: Journal Article
• Authors: Fujii, T; Hibiya, S; Maeyashiki, C; Saito, E; Takenaka, K; Motobayashi, M; Shimizu, H; Nagahori, M; Ohtsuka, K; Kurosaki, M; Yauchi, T; Watanabe, M
• Is Part Of: Journal of Crohn's and colitis. Volume 14(2020)Supplement 1
• Page Start: S409
• Page End: S410
• Publication Date: 2020-01-15
• Subjects: Inflammatory bowel diseases -- Periodicals; 616.344005
• DOI: 10.1093/ecco-jcc/jjz203.590
• Languages: English
• ISSNs: 1873-9946

Abstract

Abstract: Background: 5-Aminosalicylates (5-ASA) are the key drugs in induction and maintenance therapy in ulcerative colitis (UC). Some UC patients are involved in 5-ASA intolerance after induction of oral 5-ASA compounds. There is no evidence of the prognosis including the risk of colectomy in 5-ASA intolerant UC patients. Methods: The aim of this study is to establish the prognosis of 5-ASA intolerant UC patients in a multicenter cohort study. A retrospective review of a prospective multicenter database (2014–2018) of 1, 574 UC patients was carried out and a total of 1, 286 patients treated with oral 5-ASA compounds were enrolled. We compared the risk of colectomy and biologics induction between patients (i) tolerant to first 5-ASA compound (1079), (ii) intolerant to first 5-ASA compound but tolerant to other 5-ASA compound (107) and (iii) intolerant to 5-ASA compound and withdrawal of 5-ASA (100). Results: We identified 1, 286 patients with UC, of which 40 patients (3.1%) resulted in colectomy and 247 patients (19%) treated with biologics. Colectomy rate in patients (iii) intolerant to 5-ASA and withdrawal of 5-ASA were higher than (i) tolerant to first 5-ASA and (ii) intolerant to first 5-ASA but tolerant to other 5-ASA (9.0%, 2.7%, 1.9%, respectively). (iii) Patients withdrawal of 5-ASA showed higher risk of colectomy compared with (i) tolerant to first 5-ASA (Hazard ratio (HR) 4.71, 95% Confidence interval (CI): 2.04–10.8). The risk of colectomy among (ii) patients intolerant to first 5-ASA but tolerant to other 5-ASA showed no significant difference compared with (i) tolerant to first 5-ASA (HR 0.76, 95% CI: 0.43–1.35). The biologics induction rate in (iii) patients withdrawal of 5-ASA was significantly higher than (i) tolerant to first 5-ASA and (ii) intolerant to first 5-ASA but tolerant to other 5-ASA (37%, 18%, 16%, respectively). Also (iii) patients withdrawal of 5-ASA showed higher risk of induction with biologics compared with (i) tolerant to first 5-ASA (HR 2.35, 95% CI: 1.50–3.68). Those risk among (ii) patients intolerant to first 5-ASA but tolerant to other 5-ASA showed no significant difference compared with (i) tolerant to first 5-ASA (HR 0.76, 95% CI: 0.43–1.35). Conclusion: Patients with UC who had 5-ASA intolerance and withdrew from 5-ASA showed poor prognosis. We should consider trying other 5-ASA compounds even if the patients had intolerance to one 5-ASA compound.