Immune Thrombocytopenia Clinical Trial
— PTI FcOfficial title:
Role of Fcgamma Receptors in Immune Thrombocytopenia (ITP)
Immune thrombocytopenia (ITP) is an autoimmune disease characterized by a peripheral destruction of platelets responsible for bleedings. Monocytes/macrophages play a double role by phagocyting platelets recognized by autoantibodies and by maintaining the autoimmune response via their antigen-presenting cell functions. Fcgamma receptors (FcγR), that are represented by activating receptors (FcγRI, FcγRIIa, FcγRIII) and an inhibiting one (FcγRIIb), are involved in the regulation of macrophages and have been reported to be dysregulated in autoimmune diseases such as rheumatoid arthritis and systemic lupus erythematous. The aim of this study is to compare the expression of FcγR in patients with ITP on circulating monocytes and on splenic macrophages.
Status | Recruiting |
Enrollment | 70 |
Est. completion date | September 2024 |
Est. primary completion date | September 2024 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: ITP group - Patients who have provided written consent - Patients over 18 years - Patients with national health insurance - Patients with ITP, defined as thrombocytopenia < 100 G/L, after exclusion of infection- or drug-related thrombocytopenia and malignant hemopathy. Control Group - Persons who have provided a written consent - Persons over 18 years - Persons with national health insurance - Persons without autoimmune disease Exclusion Criteria: - Patients under guardianship - Pregnancy |
Country | Name | City | State |
---|---|---|---|
France | CHU Dijon Bourgogne | Dijon |
Lead Sponsor | Collaborator |
---|---|
Centre Hospitalier Universitaire Dijon |
France,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | 1. The expressions of the activating Fc?Rs and the inhibiting receptor (Fc?RIIb) on monocytes will be compared between ITP patients at diagnosis and controls - physiological parameter | through study completion, an average of 2 years | ||
Secondary | 1. The expressions of the activating Fc?Rs and the inhibiting receptor (Fc?RIIb) on splenic macrophages will be compared between ITP patients and controls. - physiological parameter | through study completion, an average of 2 years |
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