Follicular Helper T Cells: Biological Marker and Involvement in the Physiopathology of the IgG4-related Disease
G4-FH
2 other identifiers
interventional
75
1 country
1
Brief 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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Jul 2012
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
July 17, 2012
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 4, 2015
CompletedStudy Completion
Last participant's last visit for all outcomes
May 7, 2016
CompletedFirst Submitted
Initial submission to the registry
September 2, 2016
CompletedFirst Posted
Study publicly available on registry
September 13, 2016
CompletedJuly 28, 2023
September 1, 2016
2.8 years
September 2, 2016
July 27, 2023
Conditions
Outcome Measures
Primary Outcomes (1)
Proportion of Follicular Helper T cells (CD4 + CXCR5 + ICOShigh) in the blood
36 months
Study Arms (3)
IgG4-related disease
EXPERIMENTALSubjects suffering from IgG4-related disease
Sjögren syndrome
ACTIVE COMPARATORSubjects suffering from Sjôgren syndrome
Healthy controls
ACTIVE COMPARATORHealthy subjects
Interventions
Eligibility Criteria
You may qualify if:
- IgG4-related disease patients or
- Sjogren syndrome patients or
- Healthy subjects
You may not qualify if:
- Presence of autoimmune or inflammatory associated disease
- Age less than 18 years
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
APHM
Marseille, 13, France
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Urielle Desalbres
Assistance Publique Hôpitaux de Marseille
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 2, 2016
First Posted
September 13, 2016
Study Start
July 17, 2012
Primary Completion
May 4, 2015
Study Completion
May 7, 2016
Last Updated
July 28, 2023
Record last verified: 2016-09