Guselkumab induced greater clinical and endoscopic improvements in patients with Crohn’s disease versus placebo, with a favourable safety profile in this Phase 2 trial by Sandborn, et al.

The results of two induction studies (UC1 and UC2) and a maintenance study (UC3) show upadacitinib superiority to placebo in treating ulcerative colitis (UC). Rates of clinical remission were significantly higher for all upadacitinib doses versus placebo in all three studies.