Imaging of the Esophagus Using a SECM Capsule

January 20, 2023 updated by: Guillermo Tearney, Massachusetts General Hospital
The goal of this validation study is to compare Spectrally Encoded Confocal Microscopy (SECM) Tethered Capsule Endoscopy (TCE) diagnosis of Eosinophilic Esophagitis to that of standard of care endoscopic biopsy.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

Eosinophilic esophagitis is an inflammatory condition of the esophagus that occurs in response to certain foods or allergens. Approximately 300,000 people in the US have EoE, the incidence of newly diagnosed EoE is ~30,000/year, and EoE is found in 5-10% of all patients undergoing upper endoscopy. EoE is associated with debilitating symptoms, and is a common cause of dysphagia, strictures, and food impaction; it may even lead to esophageal perforation. Because of the impact of EoE on quality of life as well as the concern that this disease may progress to esophageal fibrosis with unknown long-term risks, experts recommend that EoE be treated until symptoms and eosinophilic infiltrate are resolved. Because the only objective method for diagnosing EoE is histopathologic assessment of multiple upper endoscopic biopsies, the processes of monitoring the esophagus during therapy and the food reintroduction involve a high number of repeat endoscopies. This process is both time consuming and frustrating for patients and their families. Because the endoscopic biopsy requires conscious sedation, it is also costly, exceeding $1000 per procedure. Given the rapid increase in the number of patients with this disease, there is a compelling need for a less invasive and more cost-effective means of identifying eosinophils in the esophagus.

Based on the extensive experience with Optical Coherence Tomography (OCT) and OFDI, the investigators at Tearney laboratory at MGH have developed a spectrally encoded confocal microscopy (SECM) technology that is able to acquire images at significantly higher frame rates than standard confocal microscopy. This SECM capability enables imaging of large portions of the esophagus at 2-µm resolution in realistic procedure times. Furthermore, the investigators at Tearney laboratory have created a tethered capsule SECM device that can be swallowed and used for EoE screening. The investigators at Tearney laboratory lab performed a pilot study using a SECM capsule on 58 subjects (2013-P-000863). The imaging was successful with no adverse or unanticipated events. SECM endoscopy capsule is similar to the approved endoscopy capsule.

A total of sixty (60) subjects will be recruited for this study. The imaging of the esophagus will be obtained. Subjects will not be sedated for the procedure.

The images obtained by the SECM capsule will be compared to the images obtained by the clinical endoscopy and biopsy. SECM imaging will be used for research purposes only and will not be used for diagnosis purposes.

Study Type

Interventional

Enrollment (Anticipated)

60

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

12 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • 12 years of age or older undergoing endoscopic biopsy for evaluation of EoE
  • Able to give informed consent

Exclusion Criteria:

  • Inability to swallow pills and capsules
  • Esophageal fistula and/or esophageal strictures with a stricture diameter that is smaller than the diameter of the capsule

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: SECM capsule imaging
Subject will swallow the SECM capsule and the imaging of the esophagus will be performed using a SECM optical system
Device: SECM capsule
Subjects will swallow a SECM capsule and the SECM imaging will be performed

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Feasibility of imaging of the Esophagus using a SECM Capsule
Time Frame: 10 minutes (roughly the amount of time it takes to image the esophagus via SECM capsule)
comparing SECM imaging of the esophagus obtained with a SECM capsule to histopathology.
10 minutes (roughly the amount of time it takes to image the esophagus via SECM capsule)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Massachusetts General Hospital

Investigators

  • Principal Investigator: Guillermo Tearney, MD, PhD, Massachusetts General Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Anticipated)

January 1, 2024

Primary Completion (Anticipated)

December 30, 2025

Study Completion (Anticipated)

December 30, 2026

Study Registration Dates

First Submitted

May 23, 2018

First Submitted That Met QC Criteria

May 23, 2018

First Posted (Actual)

June 6, 2018

Study Record Updates

Last Update Posted (Estimate)

January 24, 2023

Last Update Submitted That Met QC Criteria

January 20, 2023

Last Verified

January 1, 2023

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2018-P000844

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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