Clinical Research Directory

Inclusion Criteria: * Patients aged 1-18 * Patients who meet the criteria for diagnosis of EoE with ≥15 eosinophils per high power field and who had been previously treated with an adequate dose of PPI for 6-8 weeks or had a normal 24 hour ph probe study will be recruited from the patients seen by one of the physicians in the EoE clinic at Lurie Children's and other participating centers * Patients who agree to cow's milk elimination diet as their treatment of EoE Exclusion Criteria: * Patients who started on oral or swallowed steroids (prior use of steroids that was discontinued more than two months prior to enrollment does not constitute an exclusion criterion) * Patients who are unable to tolerate the cow's milk elimination diet * Patients with concurrent eosinophilic gastroenteritis or eosinophilic colitis