To Evaluate Efficacy and Long-term Safety of Ozanimod in Japanese Subjects With Moderately to Severely Active Ulcerative Colitis

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• Subject has diagnosis of Crohn's disease or indeterminate colitis or the presence or history of a fistula consistent with Crohn's disease or microscopic colitis or radiation colitis or ischemic colitis.
• Subject has clinically relevant cardiovascular conditions

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• Main Exclusion Criteria
• Subject has severe extensive colitis
• Subject has positive stool examination for pathogens (ova and parasites, bacteria) or positive test for toxin producing Clostridium difficile (C. difficile) at Screening.4. Subject is pregnant or breastfeeding

• Main Inclusion Criteria for Induction and Maintenance Periods
• Subject is a Japanese male or female subjects aged 18 to 75 years at the time of signing the informed consent form (ICF) at Screening.
• Subject has had Ulcerative Colitis (UC) diagnosed at least 3 months prior to first investigational product administration. The diagnosis should be confirmed by clinical and endoscopic evidence and corroborated by a histopathology report.
• Subject has evidence of UC extending ≥ 15 cm from the anal verge as determined by Baseline endoscopy (flexible sigmoidoscopy or colonoscopy).
• Subject has active UC defined as Mayo score of 6 to 12 inclusive, with endoscopic subscore of ≥ 2, a rectal bleeding score of ≥ 1, and a stool frequency score ≥ 1.
  • Main Inclusion Criteria for Open-label Extension Period
  • Subjects must satisfy the following criteria to be enrolled in the study:
• Must have completed the Week 12 Visit and is non-responder at Week 12
• Who completes the IP and enters the MP, completes participation through the last study treatment visit at Week 52 with maintaining clinical response, OR experiences disease relapse during the MP