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Follicular Helper T Cells: Biological Marker and Involvement in the Physiopathology of the IgG4-related Disease

NCT02899039 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 75

Last updated 2026-05-08

No results posted yet for this study

Summary

IgG4-related disease is a rare and very recently identified pathology, whose frequency is certainly underestimated.

The clinical presentation varies among affected organs, and most often, patients have at least three organ damage.

These organs exhibit tissue infiltration mononuclear polymorphic cells with often severe fibrosis progression resulting in a loss of function.

The biomarker, though not specific, is a polyclonal elevated serum IgG4, and histological marker, currently held by several teams, is the presence within the inflammatory infiltrate, of a predominance of IgG4-expressing plasma-cells with a relative plasma-cells IgG4 + / IgG +\> 50% on tissue immunostaining.

The investigators project provides a global assessment of T lymphocyte abnormalities and specifically the TFH (Follicular Helper) during this IgG4-related disease compared to so-called groups "control" subjects suffering from Sjogren syndrome or healthy subjects.

Conditions

Interventions

BIOLOGICAL

extra blood draw samples

Sponsors & Collaborators

  • Assistance Publique Hopitaux De Marseille

    lead OTHER

Principal Investigators

  • Urielle Desalbres · Assistance Publique Hôpitaux de Marseille

Study Design

Allocation
NON_RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2012-07-17
Primary Completion
2015-05-04
Completion
2016-05-07

Countries

  • France

Study Locations

More Related Trials

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 NCT02899039 on ClinicalTrials.gov