Skip to content

Esophageal Monitoring Device for Assessing Mucosal Impedance

Development of an Esophageal Monitoring Device for the Assessment of Esophageal Epithelium Integrity With Mucosal Impedance

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT01556919
Enrollment
429
Registered
2012-03-19
Start date
2012-03-31
Completion date
2021-07-23
Last updated
2021-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Esophagitis, GERD

Keywords

GERD, Esophagitis

Brief summary

The investigators are looking at a novel approach to measuring gastroesophageal reflux disease (GERD) damage and reducing the need for costly and less optimal testing presently used for diagnostic and treatment purposes. The investigators will be using three custom mucosal impedance (MI) catheters, each designed to measure at slightly different spacing on the esophagus.

Detailed description

During routine esophagogastroduodenoscopy (EGD), consented study participants will have a series of three (3) custom mucosal impedance (MI) catheters with an axial array of sensors positioned along the mucosal wall to directly measure mucosal impedance at various intervals. Each catheter will be manually guided by the physician through the working channel of the endoscope until the sensored tip is visible through the scope camera. The physician will place the sensored rings directly on the mucosa along the lumen. To obtain evaluable data, the sensors must remain in contact with the mucosa at each point for 5 seconds after a stable impedance reading has been captured. This process will be repeated for each of the three prototype catheters in each consented patient in order to determine the optimal catheter/sensor design. The catheters will be attached to a channeled feed that will record measurements on a dedicated computer.

Interventions

PROCEDUREStandard of care endoscopy

standard of care endoscopy

Sponsors

Vanderbilt University
Lead SponsorOTHER

Study design

Observational model
CASE_ONLY
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients who are undergoing standard of care EGD with or without BRAVO placement; * Have GERD symptoms and/or have endoscopic esophagitis

Exclusion criteria

* Use of acid suppressive therapy within last 10 days; * Known history of Barrett's esophagus, gastric surgery, alcoholism, significant motility condition

Design outcomes

Primary

MeasureTime frameDescription
Mucosal Impedance ValuesValues will be obtained at conclusion of EGD, an expected average of 5 minutesConsented study participants will have a series of three (3) custom mucosal impedance (MI) catheters with an axial array of sensors positioned along the mucosal wall to directly measure mucosal impedance at various intervals. The catheters will be attached to a channeled feed that will record measurements on a dedicated computer.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 19, 2026