WASHINGTON — Once-daily etrasimod 1 mg and 2 mg was well-tolerated and sustained improvements in histological and endoscopic features of eosinophilic esophagitis, as well as patient symptoms, through 52 weeks of treatment, according to data. “Etrasimod is a an oral, once-daily selective sphingosine 1-phosphate receptor modulator for the treatment of moderately to severely active