RecruitingPhase 1Clinical trialFecal Microbiota Transplantation in an Expanded Ulcerative Colitis PopulationThis is a multi-centre, randomised controlled trial comparing fecal microbiota transplantation to placebo in an expanded ulcerative colitis population: a feasibility study (FRONTIER-UC) to determine whether a full-scale randomized controlled trial (RCT) to investigate fecal microbiota transplantation (FMT) in ulcerative colitis (UC) is feasible.