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Study to Image the Esophagus Using the OFDI Capsule

This study is currently recruiting participants. (see Contacts and Locations)
Verified October 2016 by Guillermo Tearney, Massachusetts General Hospital
National Institutes of Health (NIH)
National Cancer Institute (NCI)
Information provided by (Responsible Party):
Guillermo Tearney, Massachusetts General Hospital Identifier:
First received: June 12, 2014
Last updated: October 26, 2016
Last verified: October 2016
The main purpose of this research is to test the feasibility and tolerability of the tethered capsule Optical Frequency Domain Imaging (OFDI) screening probe in healthy subjects, patients with Barrett's Esophagus and Eosinophilic Esophagitis.

Condition Intervention Phase
Barrett's Esophagus
Eosinophilic Esophagitis
Device: OFDI Capsule
Phase 1

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Diagnostic
Official Title: Pilot Study for Imaging of the Esophagus Using an OFDI Capsule

Resource links provided by NLM:

Further study details as provided by Guillermo Tearney, Massachusetts General Hospital:

Primary Outcome Measures:
  • Feasibility of OFDI Imaging in subjects swallowing the OFDI capsule [ Time Frame: Images will be acquired during the OFDI imaging session which should take an average of 5 minutes ]
    An investigator will assess the quality of the recorded images and movies obtained with each exam after the imaging is completed.

Secondary Outcome Measures:
  • Tolerability of OFDI Imaging in subjects swallowing the OFDI capsule [ Time Frame: Images will be acquired during the OFDI imaging session which should take an average of 5 minutes ]
    After participating in the study, the subject will be asked for feedback about tolerability of the procedure using a questionnaire.

Estimated Enrollment: 54
Study Start Date: February 2012
Estimated Study Completion Date: October 2017
Estimated Primary Completion Date: October 2017 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: OFDI Capsule Imaging
Subject will swallow the OFDI capsule and imaging will be acquired using the OFDI Imaging system.
Device: OFDI Capsule
Imaging of the esophagus using the OFDI Capsule and system

Detailed Description:

A total of 54 subjects comprising of healthy volunteers, patients with Eosinophilic Esophagitis (EoE) or Barrett's Esophagus will be asked to swallow the OFDI capsule while being unsedated. The capsule is attached to a tether that allows the capsule operator to navigate the capsule as it progresses down the esophagus using natural propulsion called peristalsis as well as to bring it back up to pulled out of the mouth when the procedure is done.

As the capsule progresses down the esophagus, multiple, two dimensional, microscopic cross- sectional images of the esophagus are acquired.


Ages Eligible for Study:   16 Years and older   (Child, Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • A previous diagnosis of Barrett's Esophagus
  • OR a previous diagnosis of EoE
  • OR a previous diagnosis of Gastroesophageal reflux disease (GERD)
  • Subject must be 18 years or older in case of Barrett's and GERD, and over the age of 16 years for EoE
  • Subject must be able to give informed consent

Exclusion Criteria:

  • Subjects with known esophageal strictures, intestinal strictures or dysphagia
  • OR subjects with a history of prior GI surgery or GI Intestinal Crohn's disease
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT02204150

Contact: Guillermo Tearney, MD., PhD 617-724-2979
Contact: Mireille Rosenberg, PhD 617-726-9145

United States, Massachusetts
Massachusetts General Hospital Recruiting
Boston, Massachusetts, United States, 02114
Contact: Norman Nishioka, MD    617-726-4422   
Sponsors and Collaborators
Massachusetts General Hospital
National Institutes of Health (NIH)
National Cancer Institute (NCI)
Principal Investigator: Guillermo Tearney, MD., PhD Massachusetts General Hospital
  More Information

Responsible Party: Guillermo Tearney, Principal Investigator, Massachusetts General Hospital Identifier: NCT02204150     History of Changes
Other Study ID Numbers: 2011P002619
5R01CA103769-07 ( US NIH Grant/Contract Award Number )
Study First Received: June 12, 2014
Last Updated: October 26, 2016
Individual Participant Data  
Plan to Share IPD: Undecided

Keywords provided by Guillermo Tearney, Massachusetts General Hospital:
Optical Coherence Tomography
Barrett's Esophagus

Additional relevant MeSH terms:
Barrett Esophagus
Eosinophilic Esophagitis
Esophageal Diseases
Gastrointestinal Diseases
Digestive System Diseases
Digestive System Abnormalities
Leukocyte Disorders
Hematologic Diseases
Hypersensitivity, Immediate
Immune System Diseases processed this record on May 25, 2017