Korea Post-marketing Surveillance for Xeljanz (Registered) in Ulcerative Colitis Patients

As required for new medications approved by the Ministry of Food and Drug Safety, safety and efficacy information should be provided for a minimum of 90 patients treated in the setting of routine practice during 4 years following approval (until 19 September 2022). Out of all the enrolled patients, at least 18 cases (20%) will be followed up until the 52nd week to see the long term safety of Xeljanz.