https://www.pfizer.com/news/press-release/press-release-detail/pfizer-completes-acquisition-arena-pharmaceuticals
Pfizer Completes Acquisition of Arena Pharmaceuticals
March 11, 2022
Arena Pharmaceuticals brings to Pfizer a portfolio of diverse and promising development-stage therapeutic candidates in gastroenterology, dermatology, and cardiology, including etrasimod, an oral, selective sphingosine 1-phosphate (S1P) receptor modulator currently in development for a range of immuno-inflammatory diseases including ulcerative colitis, Crohn’s Disease, atopic dermatitis, eosinophilic esophagitis, and alopecia areata.
https://arenamedicalaffairs.com/gi/our-pipeline/etrasimod/