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HLA-DQ2-gliadin Tetramer for Diagnosis of Celiac Disease

NCT01100099 · Status: COMPLETED · Phase: PHASE2/PHASE3 · Type: INTERVENTIONAL · Enrollment: 100

Last updated 2012-09-19

No results posted yet for this study

Summary

The investigators will evaluate the use of an HLA-DQ2-gliadin tetramer for staining of gluten specific T cells in the diagnostics of uncertain celiac disease. Some patients have started on a gluten free diet without a diagnosis of celiac disease. Subsequent later investigation in special care is difficult as the patients often are reluctant to prolonged gluten challenge. The investigators use the HLA-DQ2-gliadin tetramers for detection of gluten specific T cells after a short gluten challenge. By this method the investigators search to discriminate between true celiac disease and clinical gluten intolerance without celiac disease, in a population of HLA-DQ2+ persons already on a gluten free diet without a formal diagnosis of celiac disease.

Conditions

Interventions

DIETARY_SUPPLEMENT

Gluten challenge.

The study population consists of 50 HLA-DQ2+ patients on a gluten free diet, both celiacs and uncertain celiacs. The patients will undergo a oral gluten challenge with four slices of bread daily for three days. Before challenge blood samples will be drawn for tetramer staining of gluten-specific T-cells. The analysis is done at the Institute of Immunology at Rikshospitalet, using FACS analysis. Small intestinal biopsies will be examined for morhological changes and inflammatory gene expression. These procedures with blood samples and biopsies will be repeated after gluten challenge. Registration for clinical symptoms and personality traits will be done by standardised and validated forms. A dietist will perform an interview of the patients.

Sponsors & Collaborators

  • South-Eastern Norway Regional Health Authority

    collaborator OTHER

  • University of Oslo

    collaborator OTHER

  • Oslo University Hospital

    lead OTHER

Study Design

Allocation
NON_RANDOMIZED
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
70 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2006-09-30
Primary Completion
2009-12-31
Completion
2012-09-30

Countries

  • Norway

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01100099 on ClinicalTrials.gov