Overview Ruxolitinib in Treating Patients With Hypereosinophilic Syndrome or Primary Eosinophilic Disorders Status: Recruiting Trial end date: 2023-10-21 Target enrollment: Participant gender: Summary This phase II trial studies how well ruxolitinib works in treating patients with hypereosinophilic syndrome or primary eosinophilic disorders. Phase: Phase 2 Details Lead Sponsor: Jason Robert GotlibStanford UniversityCollaborator: Incyte CorporationTreatments: Janus Kinase Inhibitors