In real-world clinical practice, 3 Janus kinase (JAK) inhibitors—tofacitinib, filgotinib, and upadacitinib—are now available for the treatment of ulcerative colitis. Emerging real-world evidence highlights distinct efficacy and safety profiles among these agents, largely attributed to differences in JAK selectivity and dosing strategies. Notably, data are accumulating on differential efficacy, predictors of therapeutic response, and outcomes in patients who switch between JAK inhibitors, contributing to a clearer understanding of the optimal positioning of each agent. Regarding safety, particular attention has been given to risks such as herpes zoster infection and drug-induced acne, underscoring the importance of appropriate patient education and individualized risk assessment. This review summarizes clinical trials and current real-world data on tofacitinib, filgotinib, and upadacitinib in ulcerative colitis, and discusses strategies for optimizing their clinical application.
Antonio Tursi, Giammarco Mocci, Francesco Costa, Linda Ceccarelli, Edoardo Savarino, Caterina De Barba, Caterina Mucherino, Elvira D’Antonio, Laura Montesano, Manuela Marzo, Franco Scaldaferri, Daniele Napolitano, Daniela Pugliese, Antonietta Gerarda Gravina, Raffaele Pellegrino, Rocco Spagnuolo, Francesco Luzza, Antonio Cuomo, Laura Donnarumma, Giovanni Maconi, Giovanni Cataletti, Lorenzo Bertani, Giorgia Bodini, Andrea Pasta, Simona Piergallini, Mariaelena Serio, Antonella Scarcelli, Pietro Capone, Fabio Cortellini, Stefano Rodino, Ladislava Sebkova, Giuliana Vespere, Silvia Sedda, Vittorio D’Onofrio, Leonardo De Luca, Federica Gaiani, Stefano Kayali, Cristiano Pagnini, Maria Giovanna Graziani, Maria Carla Di Paolo, Leonardo Allegretta, Alessia Immacolata Cazzato, Stefano Scorza, Antonio Ferronato, Davide Giuseppe Ribaldone, Giovanni Aragona, Patrizia Perazzo, Giacomo Forti, Michela Di Fonzo, Federico Iacopini, Roberta Pica, Claudio Cassieri, Francesca Maria Onidi, Paolo Usai Satta, Walter Elisei, Marcello Picchio, Alfredo Papa
Received April 29, 2025 Accepted July 14, 2025 Published online September 29, 2025
Background/Aims Real-world data on the use of filgotinib (FILGO) in patients with ulcerative colitis (UC) are limited. This study aims to provide consistent results on the effectiveness and safety of FILGO in treating UC.
Methods A retrospective assessment of clinical and endoscopic activity was conducted in a cohort of patients with UC according to the full Mayo score. The primary co-endpoints of the study were the evaluation of the effectiveness and safety of FILGO.
Results We enrolled 102 patients with a median follow-up of 24 weeks (interquartile range, 8–24 weeks). At 8 weeks and the end of follow-up, clinical remission was achieved by 38 (37.2%) and 47 (46.1%) patients, respectively. Clinical remission was achieved in 13 of 18 patients (72.2%) receiving first-line therapy, 7 of 19 patients (36.8%) receiving second-line therapy, and 27 of 65 patients (41.5%) receiving third-line therapy (P= 0.002). Clinical remission at 8 weeks predicted clinical remission at the end of follow-up (P= 0.021). Age > 40 years (P= 0.046) and being on second- or third-line of treatment (P= 0.005) were negative predictors for clinical remission. Seventy-one patients (69.6%) achieved a clinical response. At endoscopic evaluation, mucosal healing was observed in 18 out of 30 patients (60.0%). Steroid-free remission was present in 38 out of 46 patients (82.6%). Five patients (4.9%) needed colectomy. Adverse events were recorded in 6 patients (5.8%): 2 cases (2%) were severe, requiring discontinuation of FILGO.
Conclusions Our real-world data confirms that FILGO is safe and effective for patients with UC. Its efficacy is significantly improved when used as a first-line treatment.
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Upadacitinib’s Effectiveness and Safety as a Second- or Third-Line Therapy in Patients with Ulcerative Colitis: Data from a Real-World Study Giammarco Mocci, Antonio Tursi, Franco Scaldaferri, Daniele Napolitano, Daniela Pugliese, Giovanni Maconi, Giovanni Cataletti, Roberta Pica, Claudio Cassieri, Edoardo Vincenzo Savarino, Caterina De Barba, Francesco Costa, Linda Ceccarelli, Manuela Marzo, Journal of Clinical Medicine.2025; 14(21): 7801. CrossRef
Background/Aims Tofacitinib (TFB), filgotinib (FIL), and upadacitinib (UPA) are Janus kinase (JAK) inhibitors approved for moderate-to-severe ulcerative colitis (UC). The appropriate positioning of each JAK inhibitor in the treatment algorithm, however, is unclear. Furthermore, real-world efficacy of JAK inhibitors for patients with UC and prior anti-tumor necrosis factor α antibody (aTNF) treatment are not fully investigated. We compared the efficacy and safety of 3 JAK inhibitors in patients with UC, considering their prior aTNF exposure.
Methods A retrospective study was conducted in patients with UC who started TFB, FIL, or UPA at 2 academic centers. This propensity score-matched cohort study assessed the effectiveness of the 3 JAK inhibitors for UC in patients with and without prior aTNF exposure, comparing steroid-free clinical remission and response rates after 8 weeks.
Results Among 274 patients who met the inclusion criteria, 145 experienced aTNF exposure (TFB: 59.2%, 100/169; FIL: 34.5%, 20/58; UPA: 53.2%, 25/47). Based on propensity score-matching, UPA led to a higher steroid-free clinical remission rates than TFB (adjusted odds ratio [aOR], 5.57; 95% confidence interval [CI], 1.42–21.90) or FIL (aOR, 9.00; 95% CI, 1.42–57.10) in patients exposed to aTNF. Steroid-free clinical remission and clinical response rates did not differ significantly between each group in patients non-exposed to aTNF. The incidence of adverse events was slightly higher with UPA than TFB or FIL.
Conclusions UPA may be more effective for UC than TFB or FIL, especially in patients with previous aTNF exposure, although consideration should be given to adverse events.
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Comparative effectiveness and safety of tofacitinib and filgotinib in patients with ulcerative colitis: A propensity score-weighted cohort study Fabio Salvatore Macaluso, Walter Fries, Anna Viola, Clara De Francesco, Nunzio Belluardo, Emiliano Giangreco, Maria Cappello, Roberto Ajovalasit, Filippo Mocciaro, Barbara Scrivo, Antonino Carlo Privitera, Maria Emanuela Distefano, Alessandro Vitello, Con Digestive and Liver Disease.2025; 57(11): 2109. CrossRef
Three Janus kinase inhibitors in ulcerative colitis: is upadacitinib taking the lead? Yoon Suk Jung Intestinal Research.2025; 23(4): 394. CrossRef
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Background/Aims Obtaining and maintaining corticosteroid-free remission are important goals of treatment for ulcerative colitis (UC). Characteristics associated with achieving corticosteroid-free remission were assessed in filgotinib-treated patients in SELECTION, a 58-week, phase 2b/3 trial in moderately to severely active UC.
Methods This post hoc analysis used data from filgotinib-treated patients receiving corticosteroids at maintenance baseline in SELECTION. Univariate logistic regression was performed to assess induction baseline characteristics associated with 6 months of corticosteroid-free remission at week 58, defined as clinical remission without using corticosteroids for at least 6 months.
Results At maintenance baseline, 92 and 81 patients were receiving corticosteroids in the filgotinib 200 mg and filgotinib 100 mg groups, respectively. Age, body mass index, history of pancolitis, disease duration, fecal calprotectin levels, C-reactive protein levels, Mayo Clinic Score, concomitant corticosteroids, immunomodulators, and aminosalicylates had no statistically significant effect on the likelihood of achieving corticosteroid-free remission. Baseline characteristics associated with increased odds of corticosteroid-free remission were Mayo Clinic Endoscopic Subscore of 2 (vs. 3) in the filgotinib 200 mg and filgotinib 100 mg groups, and female (vs. male) sex, current (vs. former or never) smoking, and being biologic‑naive (vs. experienced) in the filgotinib 200 mg group.
Conclusions Steroid tapering can be achieved in patients with UC receiving filgotinib 200 mg independently of baseline characteristics such as clinical activity and duration of illness. However, the likelihood of achieving corticosteroid-free remission was higher among patients who were biologic-naive, current smokers, had low endoscopic inflammatory burden and who were female.
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In which patients with ulcerative colitis would filgotinib be effective? Jihye Park Intestinal Research.2025; 23(1): 1. CrossRef
Three Janus kinase inhibitors in ulcerative colitis: is upadacitinib taking the lead? Yoon Suk Jung Intestinal Research.2025; 23(4): 394. CrossRef
Background/Aims The safety and efficacy of filgotinib, a once-daily oral Janus kinase 1 preferential inhibitor, were evaluated in Japanese patients with ulcerative colitis (UC) in the phase 2b/3 SELECTION trial.
Methods SELECTION (NCT02914522) was a randomized, placebo-controlled trial comprising 2 induction studies and a maintenance study. Adults with moderately to severely active UC were randomized in induction study A (biologic-naïve) or B (biologic-experienced) to receive filgotinib 200 mg, 100 mg, or placebo once daily for 11 weeks. Patients in clinical remission or Mayo Clinic score response at week 10 entered the 47-week maintenance study. Efficacy and safety outcomes were assessed in Japanese patients enrolled in Japan.
Results Overall, 37 and 72 Japanese patients were enrolled in Japan in induction studies A and B, respectively, and 54 entered the maintenance study. Numerically higher proportions of filgotinib 200 mg-treated than placebo-treated patients achieved clinical remission in induction study A (4/15 [26.7%] vs. 0/6 [0%]) and the maintenance study (5/20 [25.0%] vs. 0/9 [0%]), but not induction study B (1/29 [3.4%] vs. 1/14 [7.1%]). Both doses were well tolerated, and no new safety signals were noted. Herpes zoster was reported in 1 filgotinib 200 mg-treated patient in each of induction study A (2.3%, 1/44) and the maintenance study (5.0%, 1/20).
Conclusions These data, alongside those of the overall SELECTION population, suggest the potential of filgotinib 200 mg as a viable treatment option for Japanese patients with UC. Owing to small patient numbers, data should be interpreted cautiously.
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