J Korean Med Sci.  2022 Apr;37(16):e123. 10.3346/jkms.2022.37.e123.

The Comparative Risk of Serious Adverse Events With Tofacitinib and TNF Inhibitors in Patients With Ulcerative Colitis: The Korean Experience as Revealed by a National Database

Affiliations
  • 1Healthcare Review and Assessment Committee, Health Insurance Review and Assessment Service, Wonju, Korea
  • 2Department of Internal Medicine, Eunpyeong St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea

Abstract

Tofacitinib is an oral, small-molecule Janus kinase inhibitor approved in South Korea for the treatment of moderate to severe ulcerative colitis (UC) on May 1, 2019. However, safety data are lacking. We investigated the incidence of serious adverse events (SAEs) in patients with UC using tofacitinib from the National Health Insurance Service database. In all, 1,026 UC patients were enrolled in this study. The overall incidences (100 person-years; 95% confidence interval) of SAEs were 4.06 (1.63–8.36) and 6.30 (4.59–8.43) in the tofacitinib and anti-TNFi groups, respectively. No thromboembolic event occurred and major cardiovascular events occurred in only three patients (two unstable angina and one congestive heart failure) in the tofacitinib group. The incidence of herpes zoster and tuberculosis did not differ between the two groups. There was no difference in the overall incidence of SAEs, including thromboembolic events, between tofacitinib- and TNFi-treated UC patients.

Keyword

Ulcerative Colitis; Tofacitinib; Side Effect
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