NCT06389994 · Children's Hospital of Philadelphia
Esophageal String Test Monitoring to Monitor Eosinophilic Esophagitis During Oral Immunotherapy
What this study is about
Patients with IgE mediated food Allergy have elevated risk of eosinophilic esophagitis, and new therapies like taken by mouth 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.
View original scientific description
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.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
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
- Unwilling or unable to swallow the EST
- Oral or intravenous steroids in the preceding 60 days (not including swallowed topical fluticasone, budesonide, etc.)
- Participation in a clinical study that may interfere with participation in this study
- Pregnant or lactating females
- Limited English proficiency
- Parents/guardians or subjects who, in the opinion of the Investigator, may be non-compliant with study schedules or procedures.
Where
- Philadelphia, Pennsylvania
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced May 29, 2025 · Source of record for eligibility and locations