This is a Phase 2, Proof of Concept, multicenter, randomized, double-blind, placebo-controlled, parallel-group study to evaluate the efficacy and safety of 2 doses of GED-0507-34-Levo in subjects with active, mild-to-moderate Ulcerative Colitis.
The study will consist of 3 phases:
* Screening Phase - up to 4 weeks
* Double-blind Placebo-controlled Phase - Weeks 0 to 8
* Follow-up Phase - Week 9
