Evaluation of Oral Tofacitinib in Children Aged 2 to 17 Years Old Suffering From Moderate to Severe Ulcerative Colitis

A Study to Learn About the Effectiveness of Etrasimod in People With Ulcerative Colitis

An Observational Study of Etrasimod in Adult Patients With Moderate to Severe Ulcerative Colitis

A Study to Evaluate Etrasimod Treatment in Adolescents With Ulcerative Colitis

Tofacitinib in Adult Patients With Moderate to Severe Ulcerative Colitis

A Study to Learn About the Safety, Effects and Pharmacokinetics of Study Medication (PF-07054894) for the Treatment of Ulcerative Colitis

Observational Study To Assess The Effectiveness and Treatment Adherence Of Tofacitinib of Ulcerative Colitis In Clinical Practice In Sweden

An Active Surveillance, Post-Authorization Study to Characterize the Safety of Tofacitinib in Patients With Moderately to Severely Active Ulcerative Colitis in the Real-World Setting Using Data From the United Registries for Clinical Assessment and Research (UR-CARE) in the European Union (EU)