Patients will be randomized into the study at Visit 3 (Randomization Visit, same day of Visit 2 in results available). Due to the cost and invasiveness of the colonoscopy, the Screening Visit 2 colonoscopy will serve as the baseline for the study, should the patient be enrolled. Drug will also be dispensed at this visit. Eligible patients will be randomized in a 1:1 ratio to receive either adalimumab or placebo during the treatment period, along with continuing their current immunosuppressive maintenance treatment at a stable dose. Treatment in both arms will be induction at 160/80mg and maintenance on 40 mg every other week.