UC who had started TOF treatments between May and November 2018. The observation periods lasted up to 52 weeks after TOF administration. Patients were refractory to multiple treatments, such as corticosteroids, biologic agents, and a calcineurin inhibitor. TOF was initiated at 20 mg a day and decreasing to 10 mg a day after 8 weeks or more. All immunesuppressive agents, such as corticosteroids, immunomodulators, biologic agents, and calcineurin inhibitors, were withdrawn before starting TOF treatment. Disease activity was evaluated using the partial Mayo score (pMS), and laboratory data were collected at 4, 8, 12, 24, and 52 weeks after TOF administration. Our primary outcome was the clinical remission rate at 52 weeks; we also analyzed treatment efficacy and adverse events. We defined remission as pMS ≤ 2 without individual subscores > 1, response as a decrease of pMS by at least 2, and meeting one of the following conditions: (1) a decrease of the bleeding subscore by at least 1; (2) bleeding subscore < 1; or (3) above-defined remission induced. 6,7 Failure was defined as TOF discontinuation due to symptom recurrence in patients in remission, nonresponse to TOF treatment, and serious adverse events. 8 Differences in medians between the groups were compared using a non-parametric (Mann-Whitney), and comparisons between categorical variables were performed using chi-square test. TOF discontinuation-free survival was calculated. Kaplan-Meier curves were drawn for each subgroup and compared with log-rank (Mantel-Cox) test. SPSS version 26 (IBM Corp.
Fecal calprotectin showed a significant correlation with the intestinal inflammation evaluated with BAE even in patients with only small intestinal disease. FC is useful for the evaluation of CD including both the small and large intestines.
Background and Aim
The treat‐to‐target strategy has emerged in ulcerative colitis management. Mucosal healing is the best target, albeit not in induction therapy of acute diseases as clinical conditions vary over a short duration. To determine the targets during induction therapy for acute ulcerative colitis, we identified markers to predict mucosal healing at 3 and 12 months of initiating the induction therapy.
Methods
This single‐center prospective observational study enrolling 61 adult patients hospitalized for disease exacerbation collected the partial Mayo scores, ulcerative colitis endoscopic index of severity, fecal markers, and laboratory data (0 day, 2 weeks, and 3 and 12 months) of initiating induction therapy.
Results
At 2 weeks, patients with mucosal healing at 3 months had had lower partial Mayo and ulcerative colitis endoscopic index of severity scores and higher white blood cell count and total cholesterol than those without mucosal healing. At 3 months, patients with mucosal healing at 12 months had had lower partial Mayo and ulcerative colitis endoscopic index of severity scores than those without mucosal healing. A kinetic analysis demonstrated a difference in the partial Mayo scores and total cholesterol and albumin levels at 2 weeks and in the ulcerative colitis endoscopic index of severity, fecal calprotectin, and fecal immunochemical tests at 3 months between patients who achieved mucosal healing at 12 months and those who did not.
Conclusions
Partial Mayo scores and total cholesterol levels act as short‐term therapeutic targets during induction therapy in patients with acute ulcerative colitis. Mucosal healing at 3 months correlates to longer time mucosal healing.
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