Safety and Efficacy of Long‐Term Treatment with Ozanimod, an Oral S1P Receptor Modulator, in Moderate to Severe Ulcerative Colitis: Touchstone Extension: 571. (October 2016) - Sandborn, William J.; Feagan, Brian; D'Haens, Geert; Hanauer, Stephen; Wolf, Doug; Vermeire, Séverine; Ghosh, Subrata; Smith, Heather; Cravets, Matt; Frohna, Paul A.; Aranda, Richard; Olson, Allan