String test to monitor esophagus health during allergy treatment
Part of Blood & lymphatic, Digestive system, Immune system & allergy clinical trials.
This study tests a new way to check for a condition called eosinophilic esophagitis (EoE) in children getting oral immunotherapy for food allergies. You swallow a small capsule on a string to collect cells from your esophagus—no endoscopy needed.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are between 7 and 18 years old.
- You have a food allergy, and you are thinking about starting oral immunotherapy at Children's Hospital of Philadelphia.
- You can swallow a small capsule attached to a thin string (the string test).
- You do not have any known problem with your esophagus (like previous surgery, injury, or narrowing).
- You have not taken oral or intravenous steroids in the last 60 days (inhaled or swallowed steroids for asthma or allergies are okay).
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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