Endomicroscopy in Patients With Food Allergy: a New Diagnostic Option

February 18, 2022 updated by: yurdagül zopf, University of Erlangen-Nürnberg Medical School
The purpose of this study is to evaluate the endoscopic diagnostic options of the endomicroscopy in patients with food intolerance.

Study Overview

Status

Completed

Conditions

Detailed Description

Food allergy is with a prevalence of 2-4% a seldom disease. The endoscopy of the gastrointestinal tract and the histological analysis of taken biopsies of the intestinal mucosa are basic instruments in the diagnostic of food allergy. With modern high-resolution video endoscopy the intestinal mucosa can be investigated on inflamed areas and can evaluate several of differential diagnosis. With the implementation of a fluorescein based confocal laser endoscope the intestinal mucosa can be magnified 1000 fold, so that even next to the macroscopic investigation the cellular patterns can be analyzed. The laser endoscope offers for the first time an in vivo presentation of cellular structures. Our study group could utilise for the first time the laser endoscope in patients with colitis ulcerosa for cancer prevention. Hereby, the cancer prediction could be enhanced obviously. Furthermore, we conducted these investigations in more than 1500 patients und could present that this method is a safety method.

Based on these investigations we want to implement now the laser endoscope in the diagnostic field of food allergy. Patient wit food allergy generates through the intestinal mediators and histamine secretion an oedema, an increase of inflammatory cells, vasodilatation and expansion of lymph nodes. In comparison of patients with food allergy to healthy subjects, the degree of oedema formation, the amount of cell infiltration and the expansion of lymph nodes will be evaluated.

The aim of the present study is to detect these cellular structures in patients with food allergy and to open with that a new diagnostic option in patient with an allergy disease.

Study Type

Observational

Enrollment (Actual)

50

Contacts and Locations

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

Study Locations

  • Germany
    • Bavaria
      • Erlangen, Bavaria, Germany, 91054
        • Medical Department 1, University hospital Erlangen

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

18 years to 90 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Both study groups will be acquired from the ambulant gastrointestinal consultation of the Medical department 1 of the Universityhospital Erlangen.

Description

Inclusion Criteria:

  • new diagnosed and not treated patients with food allergy

Exclusion Criteria:

  • decreased clotting (Quick < 50%, platelet < 50.000/µl)
  • not given consent
  • known allergy against fluorescein
  • pregnant and breastfeeding woman

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

Cohorts and Interventions

Group / Cohort
Healthy subjects
Patients with food allergy

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
The degree of oedema formation, the amount of cell infiltration and the expansion of lymph nodes.
Time Frame: Two years
Two years

Collaborators and Investigators

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

Sponsor

University of Erlangen-Nürnberg Medical School

Investigators

  • Principal Investigator: Martin Raithel, MD, Medical Department 1, University hospital Erlangen

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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 (Actual)

February 1, 2010

Primary Completion (Actual)

December 1, 2010

Study Completion (Actual)

December 1, 2010

Study Registration Dates

First Submitted

February 18, 2010

First Submitted That Met QC Criteria

February 18, 2010

First Posted (Estimate)

February 19, 2010

Study Record Updates

Last Update Posted (Actual)

March 7, 2022

Last Update Submitted That Met QC Criteria

February 18, 2022

Last Verified

February 1, 2022

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • FAEM

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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