Esophageal String Test Monitoring to Monitor Eosinophilic Esophagitis During Oral Immunotherapy
Trial Parameters
Brief Summary
Patients with IgE mediated food Allergy have elevated risk of eosinophilic esophagitis, and new therapies like oral immunotherapy (OIT) carry additional risk of Eosinophilic Esophagitis (EoE). The goal of this study is to investigate the Esophageal String Test (EST) as a screening tool for Eosinophilic Esophagitis (EoE) during OIT therapy. Investigators will compare the efficacy of the Esophageal String Test to symptom assessment using a validated patient reported symptom questionnaire, the Pediatric Eosinophilic Esophagitis Symptom Score (PEESS) v2.0. Investigators will utilize these tools to screen patients at their baseline visit prior to the start of OIT, then at the 3- and 6-month OIT follow-up visits.
Eligibility Criteria
Inclusion Criteria: An individual must meet all of the following criteria: * Male or female, aged 7 to 18 years old, inclusive * Have a history of Immunoglobulin (IgE)-mediated food allergy * Considering using oral immunotherapy (OIT) for food allergies at CHOP° * Able \& willing to swallow the esophageal capsule * Parental/guardian permission (informed consent) and if appropriate, child assent. * Willing to comply with all study procedures and be available for the duration of the study. Exclusion Criteria: * Known or expected need for MRI imaging during the study period * Known connective tissue disease * Known eosinophilic disorder including any eosinophilic gastrointestinal disorder and hypereosinophilic disorder * Past history of caustic ingestion or other esophageal injury * History of esophageal surgery or dilation (i.e.: tracheoesophageal fistula repair) * History of gastrointestinal motility disorder including esophageal achalasia * History of inflammatory bowel disease * Unwil