Ulcerative Colitis

A phase III, double blind , placebo controlled study of the efficacy and safety of etrolizumab during induction and maintenance in patients with moderate to severe active ulcerative colitis who are refractory to or intolerant of TNF inhibitors. Patients must be 18 and older with an established UC diagnosis at least 6 months prior to entry into the study. They must be intolerant or refractory to one or two (but no more than two) TNF- inhibitors (Infliximab, Adalimumab, Golimumab) within the previous 5 years. This study lasts 66 weeks with the option to go into the long-term extension study depending on response to treatment.


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