Measuring mucosal impedance to diagnose gastroesophageal reflux disease

Role of Mucosal Impedance Measurement for the Diagnosis of Gastroesophageal Reflux Disease

Observational Hospital de Clinicas José de San Martín · NCT06339801

This study is testing a new way to measure the lining of the esophagus to see if it can help diagnose gastroesophageal reflux disease (GERD) better in patients who haven't improved with standard medications.

Quick facts

Study typeObservational
Enrollment100 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorHospital de Clinicas José de San Martín Academic / other
Locations1 site (Buenos Aires)
Trial IDNCT06339801 on ClinicalTrials.gov

What this trial studies

This observational study aims to evaluate the role of mucosal impedance measurement in diagnosing gastroesophageal reflux disease (GERD), particularly in patients who have not responded adequately to proton pump inhibitors. It addresses the limitations of current diagnostic methods, such as upper gastrointestinal endoscopy and 24-hour impedance-pH monitoring, which may not provide sufficient sensitivity or specificity. By utilizing a minimally invasive device, the study seeks to improve diagnostic accuracy for patients with Non-Erosive Reflux Disease (NERD) and enhance treatment strategies based on accurate diagnoses.

Who should consider this trial

Good fit: Ideal candidates for this study are adults over 18 years old who exhibit GERD symptoms that have not improved with proton pump inhibitors and have normal endoscopic findings.

Not a fit: Patients with esophageal disorders, uncontrolled systemic diseases, or those who are pregnant or lactating may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could lead to more accurate diagnoses of GERD, allowing for better-targeted treatments and improved patient outcomes.

How similar studies have performed: While the use of mucosal impedance measurement is a relatively novel approach, existing studies have indicated potential benefits in improving GERD diagnosis, suggesting a promising avenue for further exploration.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients \>18 years presenting symptoms of GERD that have not adequately responded to proton pump inhibitors (PPIs) treatment after 8 weeks and have undergone upper gastrointestinal endoscopy (UGIE) without erosive esophagitis.

Patients with a broad spectrum of severity, assessed through the GERDq score, will be included

Exclusion Criteria:

* ● Pregnancy or lactation

  * Esophageal disorders (esophageal motor disorders, eosinophilic esophagitis, neoplastic diseases)
  * Uncontrolled systemic diseases (diabetes mellitus, hypo- or hyperthyroidism, cancer, etc.)
  * Lack of informed consent
  * Severe psychiatric disorders

Where this trial is running

Buenos Aires

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Gastroesophageal Refluxgastroesophageal refluxmucosal impedance
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.