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临床试验/NCT02891109
NCT02891109已完成不适用

The Role of Regulatory B Cells in the Chronic Immune Thrombocytopenia

University Hospital, Brest1 个研究点 分布在 1 个国家目标入组 36 人开始时间: 2015年1月最近更新:
适应症

试验速览

阶段
不适用
状态
已完成
入组人数
36
试验地点
1
主要终点
Regulatory B cells functionality

研究概览

简要总结

The chronic immune thrombopenia is an autoimmune disease caused by B cells. These cells produce anti platelets and megakaryocytes antibodies. Some B cells, named regulatory B cells, are known to control other cells. Their action in chronic immune thrombopenia is actually unknown.

详细描述

The chronic immune thrombopenia is an autoimmune disease caused by B cells. These cells produce anti platelets and megakaryocytes antibodies. Some B cells, named regulatory B cells, are known to control other cells. Their action in chronic immune thrombopenia is actually unknown. In our cohort of chronic immune thrombopenia and controls, we realized a flow cytometry analyze of B and T cells and a co-culture to determine regulatory B cells functionality.

研究设计

研究类型
Observational
观察模型
Case Control
时间视角
Prospective

入排标准

年龄范围
18 Years 至 —(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Purpura, Thrombocytopenic, Idiopathic, chronic phase (>12 months)
  • no treatment or thrombopoietin receptor agonists

排除标准

  • < 18 years
  • Purpura, Thrombocytopenic, Idiopathic, acute phase
  • pregnancy
  • others causes of thrombopenia

结局指标

主要结局

Regulatory B cells functionality

时间窗: 1 week

inhibition of T cells proliferation with co-culture B and T cells

次要结局

  • Cytometry immunophenotyping of B and T cells(1 week)

研究者

申办方类型
Other
责任方
Sponsor

研究点 (1)

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