This study will evaluate the responsiveness central reader based EIs for assessing clinical disease activity. Endoscopic images will be obtained from recent large multicenter randomized clinical trial and assessed using utilizing CIMS readers using EIs (MMCS, UCEIS, MBS) and a VAS (visual analog scale). The primary efficacy endpoint of this trial was clinical and endoscopic remission at week 6, with a secondary endpoint of endoscopic and clinical remission at week 10. For the same subjects, clinical data will be obtained including a modified UCDAI (Ulcerative Colitis Disease Activity Index). Central readers are blinded to clinical scores.
