P410 Long-term persistence and safety of biological drugs in patients with Inflammatory Bowel Disease. Differences between women and men: SEXEII study of ENEIDA

Abstract

Background Female sex has been associated with a worse response to anti-TNF drugs and with discontinuation of these drugs in immune-mediated diseases. Data in Inflammatory Bowel Disease (IBD) are unclear. The aims of study are to assess possible differences in long-term treatment persistence and safety of biological drugs between women and men with IBD. Methods Multicenter observational study carried out with data from the ENEIDA registry. Patients diagnosed with Crohn's disease (CD) or ulcerative colitis (UC) who receive or have received biological drugs, and have had a minimum treatment follow-up of 6 months, were included. We evaluated the first biological treatment used in the patient. Statistic analysis; Regression logistic models were used for safety evaluation. Kaplan-Meier curves, Log-Rank test and COX regression were used to treatment persistance. Results A total of 51,595 patients with IBD were evaluated [ 25,947 with CD (13238 men and 12709 women) and 25,648 with UC (13596 men and 12052 women)]. Mean follow up of 13 years. Biologic use: 28.7% of the evaluated patients had been treated with at least one biologic drug. Biologics use in UC was less common in women than in men (15.5% vs. 17.2%, OR (95%CI): 0.88 (0.81-0.94), p= 0.001) and there were no differences between sexes in CD ( 45.7% in men, 44.7% in women). Infliximab (IFX) and adalimumab (ADA) were the most used drugs (in 8914 and 5269 patients, respectively). Safety evaluation. Women suffered more frequently adverse effects to IFX and ADA than men, being the withdrawal of IFX and ADA due to adverse effects also significantly more frequent in women than in men. Biological treatment persistence in patients with IBD was longer in men than in women [median 3.1 years vs. 2.3 years, p < 0.001]. Female sex was a risk factor of biologic discontinuation [adjusted hazard ratio [aHR] (95%CI): 1.20 (1.14-1.25), p<0.001]. Combotherapy with thiopurines and CD were protective factors for discontinuation [ combotherapy; aHR (95%CI): 0.46 ( 0.44-0.48), p<0.001; CD aHR (95%CI): 0.78 (0.74-0.82), p < 0.001]. In the analysis of each specific biological drug, female sex was identified as independent predictor for discontinuation of IFX [aHR (95%CI) 1.21; 1.13-1.30, p<0.001] and ADA [aHR (95%CI) 1.24; 1.14-1.35, p<0.001] in patients with CD and of IFX in patients with UC [aHR (95%CI): 1.16; 1.05-1.28, p=0.004]. Figure 1. Conclusion 1.The use of biologics in ulcerative colitis seems to be higher in men than in women. 2. Female sex is an independent risk factor for the development of adverse effects to IFX and ADA and for the discontinuation of these drugs. 3. The long-term persistence of IFX and ADA (as first biological treatments) is low, being higher in men compared to women.

Lack of Benefit for Early Escalation to Advanced Therapies in Ulcerative Colitis: Critical Appraisal of Current Evidence

“…As a result, patients with CD are more likely to develop stricturing and penetrating phenotypes, have a higher likelihood of developing extraintestinal manifestations, and, 10 years into their disease course, ~40–60% of CD patients will require surgical resection as compared to a lifetime colectomy risk in UC of ~10–15%. 2–4 Nonetheless, large epidemiological studies have identified that some patients with CD will experience a more indolent course and accurately differentiating those patients with progressively bowel-damaging CD from those with non-progressive phenotypes is a research priority. 5 Despite these important differences between CD and UC, treatment strategies aimed at escalating to advanced therapies early in the disease course, commonly defined as ‘window of opportunity’ within 2–3 years of diagnosis, are often adapted from management of CD to that of UC.…”