Efficacy of Dupilumab on Facilitated Food Introduction in Eosinophilic Esophagitis

1 serving size of food proven to induce histologic and clinical symptoms in EoE

Either 1 serving size of different food (not food in arm 1) to induce histologic and clinical symptoms in EoE or Increase the food in arm 1 to 2 serving size a day

Either 1 serving size of different food (not food in arm 1 or 2) to induce histologic and clinical symptoms in EoE or Increase the food in arm 2 to 2 serving size a day or unlimited amounts of food arm 1

"All patients will receive open label dupilumab at the following doses \>12 years of age \> 40 kg 300 subcutaneous (SQ) weekly~6-11 years of age 5-15 kg 100 mg SQ every 2 weeks (Q2W) 15-30 kg 200 mg SQ Q2W \>30-60 kg 300 mg SQ Q2W"