| Not yet recruiting | N/A | 60 | Europe | Blood sampling, Blood test/Blood collection, Esophageal biopsies, Biopsies of the esophagus, Unstimulated saliva sampling, Unstimulated saliva collection, Urine sampling, Urine collection, Stool sampling, Stool collection | Assistance Publique - Hôpitaux de Paris, INRAe - Micalis Institute - Jouy en Josas | Eosinophilic Esophagitis | 04/26 | 04/26 | | |