Pfizer Inc. announced positive topline results from a phase 3 study of etrasimod, an investigational, oral, once-a-day, selective sphingosine 1-phosphate (S1P) receptor modulator in development for the treatment of moderately to severely active ulcerative colitis (UC). In the study, etrasimod patients achieved statistically significant improvements in the primary endpoint of clinical remission at week 12 as compared with placebo. Statistically significant improvements were achieved in all key secondary endpoints in the trial as well. The safety profile was consistent with previous phase 2 studies.
