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Cytosponge Protocol IRB 11-006429

This study is not yet open for participant recruitment.
Verified November 2012 by Mayo Clinic
Sponsor:
Collaborator:
University of Cambridge
Information provided by (Responsible Party):
David A. Katzka, Mayo Clinic
ClinicalTrials.gov Identifier:
NCT01585103
First received: April 23, 2012
Last updated: November 7, 2012
Last verified: November 2012
History of Changes
  Purpose

Whether the cytosponge will be a useful non-invasive tool in evaluating patients with eosinophilic esophagitis?


Condition Intervention
Eosinophilic Esophagitis
 Device: Cytosponge - Brushing

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Diagnostic
Official Title: Cytosponge Protocol

Further study details as provided by Mayo Clinic:

Primary Outcome Measures:
  • Evaluate sensitivity and specificity of the Cytosponge in patient's with Eosinophilic Esophagitis [ Time Frame: Six months ] [ Designated as safety issue: No ]
    To evaluate the sensitivity and specificity of Cytosponge when compared to upper endoscopy and biopsies/brushing in patients undergoing clinically indicated endoscopy for evaluation of Eosinophilic Esophagitis.


Estimated Enrollment: 20
Study Start Date: December 2012
Estimated Study Completion Date: January 2014
Estimated Primary Completion Date: July 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Cytosponge/ brushing Device: Cytosponge - Brushing
  • Patients with eosinophilic esophagitis will be enrolled. Undergoing clinically indicated endoscopy and biopsy either for initial diagnosis or for monitoring the activity of their disease.
  • Two hours prior to endoscopy in the patients will be asked to swallow the Cytosponge. Briefly, the capsule and bunched up string are swallowed with water.
  • The string is held without any tension to allow the capsule to move into the stomach. The patient holds onto the string for five minutes after ingestion to allow the capsule to dissolve in the proximal stomach, where a spherical mesh of 3 cm diameter is released.
  • The back of the throat is then sprayed with 1% lidocaine and the expanded mesh withdrawn by pulling on the string with the patient's head in an extended position.
  • Following this, the clinically indicated endoscopy will be performed. Prior to biopsies we will do a brushing of the esophagus.
Other Names:
  • New diagnostic tools
  • for Barrett's and
  • Eosinophilic Esophagitis

  Eligibility

Ages Eligible for Study:   18 Years to 65 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

•Adult patients between the ages of 18 and 65 with eosinophilic esophagitis including lactating or pregnant women undergoing clinically indicated endoscopy and esophageal biopsy.

Exclusion Criteria:

  • Patients for whom clinically indicated endoscopy is not safe. Patients who have small caliber esophagus, an esophageal stricture that will not permit passage of the gelatin capsule or are unable to swallow the capsule.
  • Vulnerable populations, such as those with diminished mental acuity, will be excluded.
  • Patients with known Lidocaine/Acetylcysteine allergies
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT01585103

Locations
United States, Minnesota
Mayo Clinic in Rochester
Rochester, Minnesota, United States, 55905
Sponsors and Collaborators
Mayo Clinic
University of Cambridge
Investigators
Principal Investigator: David Katzka, MD Mayo Clinic
  More Information

No publications provided

Responsible Party: David A. Katzka, Prinicipal Investigator, Mayo Clinic
ClinicalTrials.gov Identifier: NCT01585103     History of Changes
Other Study ID Numbers: 11-006429
Study First Received: April 23, 2012
Last Updated: November 7, 2012
Health Authority: United States: Institutional Review Board

Additional relevant MeSH terms:
Eosinophilia
Esophagitis
Eosinophilic Esophagitis
Esophageal Diseases
Gastrointestinal Diseases
Digestive System Diseases
 Gastroenteritis
Leukocyte Disorders
Hematologic Diseases
Hypersensitivity, Immediate
Hypersensitivity
Immune System Diseases

ClinicalTrials.gov processed this record on May 22, 2013