About this trial
The purpose of this study is to evaluate the effectiveness and safety of ozanimod vs azathioprine for the treatment of ulcerative colitis (UC) in real-world clinical practice in Japan
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Participants with Ulcerative Colitis (UC) provided written consent to participate in the study
Participants who are aged ≥ 18 years at the earlier date of either initiation of treatment with ozanimod or azathioprine or obtaining consent
Starting dose of oral steroid ≥ 30 mg/day (prednisolone equivalent)
Administration of ozanimod or azathioprine started after oral steroid administration, and ozanimod or azathioprine administered concomitantly with steroids (excluding patients who started oral steroids and ozanimod or azathioprine on the same day)
Disqualifiers
Participants with symptoms of UC with no change or increase in Patient-Reported Outcome 2 (PRO2) from the time of initiating oral steroid administration after 2 weeks of administration of ≥ 30 mg/day (prednisolone equivalent) of oral steroids
Participants with complications requiring continued steroid use (excluding topically acting steroids for inhalation or topical application)
Participants who participated in other clinical studies involving interventions during the observation period
Participants judged to be inappropriate for enrollment in this study by the investigator at each participating study site
Trial population
The study population will consist of adults diagnosed with ulcerative colitis (UC) who initiated ozanimod or azathioprine treatment after starting oral steroids and concomitant-use oral steroids in Japan
Trial design
Cohort
Retrospective
Treatments tested in this trial
Ozanimod
DrugAccording to the product label
Azathioprine
DrugAccording to the product label
Treatment groups
Trial outcomes
Primary outcomes
Proportion of participants achieving steroid-free symptomatic remission
Secondary outcomes
Oral steroid dose prescribed
Proportion of patients with continuation of ozanimod or azathioprine treatment after oral steroid treatment initiation
Steroid-free maintenance period duration
Time to achieving steroid-free status
Sponsors and contacts
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