Welcome to EnteroTrack

EnteroTrack offers the Esophageal String Test (EST). The only non-endoscopic, office-based, and pain-free method to manage EoE.

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The EnteroTracker

The EnteroTracker is used to perform the esophageal string test and aims to:

Provide a minimally invasive procedure that allows your doctor to collect samples from your esophagus.
Provide frequent monitoring of esophageal inflammation in Eosinophilic Esophagitis (EoE), reducing the need for repetitive invasive procedures.
Provide precise insights into disease progression, treatment responses, and management of (EoE).

Our easy four step process:

Secure

Wrap the proximal end of the pulled string around the patient’s finger once and instruct the patient to keep hold of the string.

Swallow

Instruct the patient to swallow the capsule with water while keeping the string wrapped around their finger.

Relax

The string should remain in the patient’s upper GI tract for a period designated by the physician.

Retrieve

Pull the string out of the mouth at a slow, even rate. This should take no more than 5 seconds.

Empowering Healthcare Professionals & Patients

For EoE Patients

The esophageal string test is particularly valuable for patients with Eosinophilic Esophagitis who may need multiple procedures to:

Monitor disease activity
Assess response to treatment
Evaluate for food triggers
Reduce the need for repeated endoscopies

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For Clinicians

The Esophageal String Test has demonstrated efficacy in monitoring eosinophilic esophagitis (EoE) and assessing the microbiome.

Acquire mucosal content samples that serve as a liquid biopsy, facilitating analysis for disease-related biomarkers at reference laboratories.
In-Office Monitoring of Eosinophilic Esophagitis
The EnteroTracker® is a device to be used for collection of fluid/mucus from the upper gastrointestinal tract of adult and pediatric patients.

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Proudly Partnered With

APFED (American Partnership for Eosinophilic Disorders)

EST Effectiveness in Monitoring EoE

Eosinophil counts and EoEScores significantly correlated during treatment, distinguishing patients with active EoE from treatment-associated remissions for 93.9% of ESTs performed.

Source: Ackerman SJ, Kagalwalla AF, Pan Z, et al. The minimally invasive 1-hour Esophageal String Test (EST) monitors therapeutic changes in mucosal inflammation in eosinophilic esophagitis. Am J Gastroenterol. Published online November 7, 2024. doi:10.14309/ajg.0000000000003192

What People Are Saying

"I recommend it."

– Patient, Age 10

"The string test results are just as effective as endoscopy"

– EoE Clinician

"Kids can get back to being kids"

– Children’s Hospital of Colorado

"I wanted to find something else besides scoping every 6 – 9 months. I would definitely recommend it over scoping"

– Mother of EoE patient

"The String Test is excellent because it helps avoid anesthesia and sedation for patients. I think this is greatly going to change the care that patie..."

– Dr. Khalaf, EoE Specialist, Univ. of South Florida

"I got to play on my phone for an hour. It was very easy"

– Taylor, Age 9, North Carolina

"I love the String Test for the ease and cost effectiveness of it. It’s much less daunting than endoscopies and it makes treatment more manageable."

– Ashlyn, Age 22, Colorado

"It's significantly more affordable and less invasive than an endoscopy"

– Zach, Age 28, Colorado

"The string test was a much better experience than having an endoscopy. The procedure was easy, and not uncomfortable at all. We are so thankful that t..."

– Lauren, Age 23, Virginia