Biomarkers in Blood Samples From Young Patients With Newly Diagnosed Brain Tumors Undergoing Standard Radiation Therapy and Chemotherapy
Immunologic Profile of Patients With Newly Diagnosed Medulloblastoma at Initial Diagnosis and During Standard Radiation and Chemotherapy
RATIONALE: Studying samples of blood in the laboratory from patients receiving radiation therapy and chemotherapy may help doctors learn more about the effects of this treatment on cells. It may also help doctors understand how well patients respond to treatment.
PURPOSE: This research study is studying biomarkers in blood samples from young patients with newly diagnosed brain tumors undergoing standard radiation therapy and chemotherapy.
研究概览
详细说明
OBJECTIVES:
Primary
- Evaluate the fraction of peripherally circulating T-regulatory cells (T_regs) in pediatric patients with newly diagnosed medulloblastoma and compare it to the levels found in a control group of patients undergoing craniectomy for Chiari malformation.
- Evaluate the longitudinal effects of standard radiotherapy and chemotherapy regimens on the overall population of lymphocytes as well as the fraction of T_reg cells in patients with medulloblastoma.
Secondary
- Determine the baseline fraction of T_reg cells in those with non-medulloblastoma posterior fossa tumors compared to levels found in patients undergoing decompression for Chiari malformation.
OUTLINE: This is a multicenter study.
Patients with Chiari malformation and patients with posterior fossa tumor undergo standard surgery. Patients with posterior fossa tumor also receive standard radiotherapy and chemotherapy.
Blood samples are collected at baseline and periodically to measure the level of circulating T-regulatory cells.
研究类型
阶段
- 不适用
联系人和位置
学习地点
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California
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Los Angeles、California、美国、90027-0700
- Childrens Hospital Los Angeles
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Palo Alto、California、美国、94304
- Lucile Packard Children's Hospital at Stanford University Medical Center
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District of Columbia
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Washington、District of Columbia、美国、20010-2970
- Children's National Medical Center
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Illinois
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Chicago、Illinois、美国、60614
- Children's Memorial Hospital - Chicago
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Maryland
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Bethesda、Maryland、美国、20892
- NCI - Pediatric Oncology Branch
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New York
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New York、New York、美国、10065
- Memorial Sloan-Kettering Cancer Center
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North Carolina
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Durham、North Carolina、美国、27710
- Duke Cancer Institute
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Ohio
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Cincinnati、Ohio、美国、45229-3039
- Cincinnati Children's Hospital Medical Center
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Pennsylvania
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Pittsburgh、Pennsylvania、美国、15213
- Children's Hospital of Pittsburgh of UPMC
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Tennessee
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Memphis、Tennessee、美国、38105
- St. Jude Children's Research Hospital
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Texas
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Houston、Texas、美国、77030-2399
- Texas Children's Cancer Center and Hematology Service at Texas Children's Hospital
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
DISEASE CHARACTERISTICS:
Meets 1 of the following criteria:
Histologically confirmed posterior fossa tumor
- Newly diagnosed disease
- Medulloblastoma OR non-medulloblastoma (pilocytic astrocytoma, ependymoma, atypical rhabdoid tumor, or others)
- Scheduled to undergo craniotomy and tumor resection
Chiari malformation
Requires craniectomy for decompression
- No secondary decompression
PATIENT CHARACTERISTICS:
- No unexplained febrile illness
- No active infection
- No autoimmune disorders such as inflammatory bowel disease, juvenile rheumatoid arthritis, or systemic lupus erythematosus
- No other immunosuppressive disorders (e.g., HIV infection)
PRIOR CONCURRENT THERAPY:
- See Disease Characteristics
学习计划
研究是如何设计的?
设计细节
- 主要用途:基础科学
- 屏蔽:无(打开标签)
研究衡量的是什么?
主要结果指标
结果测量 |
|---|
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Peripherally circulating T-regulatory (T-reg) cells in patients with medulloblastoma or Chiari malformation
|
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Longitudinal side effects of standard radiotherapy and chemotherapy regimens on the overall population of lymphocytes as well as the fraction of circulating T-reg cells
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Effect of treatment on lymphocytes and T-reg cells
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次要结果测量
结果测量 |
|---|
|
Baseline fraction of circulating T-reg cells
|
合作者和调查者
调查人员
- 首席研究员:Sri Gururangan, MD、Duke Cancer Institute
研究记录日期
研究主要日期
学习开始
初级完成 (预期的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
与本研究相关的术语
关键字
其他相关的 MeSH 术语
其他研究编号
- CDR0000673892
- PBTC-N11
药物和器械信息、研究文件
研究美国 FDA 监管的药品
研究美国 FDA 监管的设备产品
在美国制造并从美国出口的产品
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