Ozanimod as induction therapy and maintenance therapy for ulcerative colitis

N Engl J Med 2021;385:1280–91 doi: 10.1056/NEJMoa2033617

Patients receiving ozanimod displayed a significant improvement in clinical response and all secondary endpoints during both the 10-week induction and 52-week maintenance study periods. Percentage of patients achieving clinical remission at Weeks 10 and 52 was the primary endpoint.

January 2024

In this two-round modified RAM study by Solitano, et al., the authors found that experts preferred to assess JAK inhibitor risk on a case-by-case basis across all specialties. Uncertainty remained on several clinical scenarios regarding the appropriate use of JAK inhibitors, however they remain an important therapy option for the treatment of IMIDs  and were deemed appropriate for patients with moderate risk profiles.


Preclinical studies can provide insight into mechanisms of efficacy and optimal dosing regimens. In this study, Dowty et al. compare the pharmacokinetic / pharmacodynamic profiles of tofacitinib in a murine arthritis model and in patients with rheumatoid arthritis from tofacitinib clinical trials. The main driver of efficacy in both preclinical murine arthritis models and clinical RA was found to be inhibition of JAK1 heterodimer signalling, where total drug exposure (Cave) was a predictor of pr...