LIV001 in Patients with Mild-to-Moderate Active Ulcerative Colitis (UC)

Inclusion Criteria: 1. Male or female aged 18 to 65 years (inclusive) at Screening. 2. Established diagnosis of UC for at least 3 months prior to Screening, diagnosed by routine clinical, radiographic, endoscopic or pathologic criteria (Confirmed by colonoscopy and pathology records or, if unavailable, diagnosis confirmed by a letter from the subject's general practitioner.) Exclusion Criteria: 1. Possible or confirmed diagnosis of Crohn's Disease, other form of inflammatory bowel disorder and coeliac disease. 2. History of a condition associated with significant immunosuppression, or chronic administration (\> 14 consecutive days) of immunosuppressants or other immune-modifying drugs within 3 months prior to Visit 3 (subjects taking oral medications for UC, including corticosteroids or immunomodulators, are not excluded).