Crohn's disease articles from across Nature Portfolio

Recent clinical trials have demonstrated efficacy and safety of etrasimod, a new sphingosine-1-phosphate receptor modulator, in the treatment of patients with moderately-to-severely active ulcerative colitis. Etrasimod is a promising new oral treatment option for ulcerative colitis, although long-term efficacy and safety data should be accumulated.

Although the aryl hydrocarbon receptor has an essential role in supporting homeostasis of intestinal intraepithelial lymphocytes, its activation must be regulated to prevent oxidative stress and death of these cells.

A careful integration of the effectiveness and safety of the therapies for inflammatory bowel disease, considering patients’ disease risks, treatment complications and preferences, is warranted to inform the positioning of therapies in clinical practice. Precision medicine might help choose the best option for an individual patient.

Key studies published in 2022 highlight the emergence of several novel drugs for inflammatory bowel disease. Head-to-head trials and network meta-analyses have also been conducted to identify the sequencing of these treatments, but we still have a long way to go to achieve personalized medicine.