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Efficacy and Safety of Three Janus Kinase Inhibitors in Ulcerative Colitis Patients over and under 65 Years of Age: A
Shintaro Akiyama1, Hiromichi Shimizu2, Akiko Tamura2
1Department of Gastroenterology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan.
Introduction:
It remains unclear whether Janus kinase (JAK) inhibitors differ in efficacy and safety between elderly and non-elderly patients with ulcerative colitis.
Methods:
We retrospectively compared outcomes between patients who started a JAK inhibitor at ≥65 years (elderly group) and those <65 years (non-elderly group).
Results:
Among 228, 215, and 159 patients treated with upadacitinib, filgotinib, and tofacitinib, we identified 14, 36, and 13 elderly patients, respectively. There were no significant differences in efficacy between elderly and non-elderly patients for any of the three JAK inhibitors. The elderly group had a 3-fold higher risk of herpes zoster infection with upadacitinib or tofacitinib compared to the non-elderly group, whereas the risk with filgotinib was less than 3% in both groups. The non-elderly group had a 3-fold higher risk of acne with upadacitinib.
Conclusion:
Adverse event risks with JAK inhibitors should be considered by age. Given the limitations of this study, including its retrospective design and small sample size, further studies with larger sample sizes are needed to validate our findings.
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