 - Eosinophilic Diseases: Participants with other conditions that could lead to elevated eosinophils such as Hypereosinophilic Syndromes, including Churg-Strauss Syndrome Eosinophilic Granulomatosis with Polyangiitis EGPA, or Eosinophilic Esophagitis. Participants with a known, pre-existing parasitic infestation within 6 months prior to Visit 1 are also to be excluded. 