Data from two randomised trials indicate that the microRNA upregulator obefazimod resulted in significantly higher rates of clinical remission at week 8 than did placebo in patients with moderately-to-severely active ulcerative colitis. Both trials, presented by Bruce E Sands (New York City, NY, USA), randomly assigned participants to receive obefazimod 25 mg, obefazimod 50 mg, or placebo. At week 8, in the ABTECT 1 trial, 38 (24%) of 160 patients receiving obefazimod 25 mg, 69 (22%) of 318 patients receiving obefazimod 50 mg, and four (3%) of 158 patients receiving placebo achieved clinical remission as per the FDA definition (stool frequency subscore of 0 or 1, rectal bleeding subscore of 0, and Mayo endoscopic subscore of 0 or 1; both p<0·0001 vs placebo).