NCT00226083撤回不适用
Studies of Large Platelets in Patients With Sickle Cell Disease
适应症
试验速览
- 阶段
- 不适用
- 状态
- 撤回
- 试验地点
- 1
研究概览
简要总结
We are studying if sickle cell disease blood platelets are larger than normal and how they may cause obstruction of blood vessels. We are also trying to study the reasons why large platelets are found in patients with sickle cell disease.
详细描述
Research volunteers are seen in the Outpatient Research Center by the Principal Investigator or another physician. A detailed history is obtained, a physical examination is performed, and blood (usually 4 tablespoons) is obtained for additional tests. The research volunteer's previous medical records will be requested. Upto 5 additional blood samples may be obtained in a subgroup of patients.
研究设计
- 研究类型
- Observational
- 时间视角
- Prospective
入排标准
- 年龄范围
- 7 Years 至 —（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Adults and children > 7 years of age with sickle cell disease (Hb SS) who are not taking hydroxyurea and are not receiving routine blood transfusion therapy.
排除标准
- •Current hydroxyurea therapy or,
- •Hydroxyurea use within the past 3 months
- •Blood transfusion or exchange transfusion within the past 3 months
- •Current treatment with aspirin or clopidogrel
研究者
研究点 (1)
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