Obatoclax Mesylate in Samples From Young Patients With Acute Myeloid Leukemia
SCOR in Targeted Therapies for Infant Leukemias Project 2: Targeting Apoptosis in Leukemia in Infants
RATIONALE: Studying the effects of obatoclax mesylate in cell samples from patients with cancer in the laboratory may help doctors learn more about the effects of obatoclax mesylate on cancer cells. It may also help doctors identify biomarkers related to cancer.
PURPOSE: This research study is studying obatoclax mesylate in samples from young patients with acute myeloid leukemia.
研究概览
详细说明
OBJECTIVES:
- Determine comprehensive gene and protein expression profiles of in vitro sensitivity and resistance to obatoclax mesylate in multiple-lineage leukemia (MLL)-rearranged cell lines and primary infant acute myeloid leukemia (AML) samples.
- Define optimum in vitro combinations of obatoclax mesylate targeting pro-survival BCL-2 family proteins with cytotoxic drugs in MLL-rearranged leukemia cell lines and primary infant AML samples.
- Identify synergistic combinations based on a pharmacodynamic modeling and simulation construct.
- Determine whether combinations of obatoclax mesylate targeting pro-survival BCL-2 family proteins with cytotoxic drugs improves survival in a xenograft model of MLL-rearranged infant AML.
OUTLINE: This is a multicenter study.
Obatoclax mesylate activity is assessed via the MTT assay. A priori features of acute myeloid leukemia (AML) blasts relating to the apoptosis and ATG cell death pathways and their execution are characterized using microarray analysis and quantitative real-time (Q-RT) PCR. Gene and protein expression is described and quantified using Q-RT PCR and western blot analysis at specific time points after obatoclax mesylate exposure to identify pharmacodynamic biomarkers of activity and characterize the cell death mechanism in multiple-lineage leukemia (MLL)+ AML. The MTT assay is performed using obatoclax mesylate-cytotoxic chemotherapy combinations to determine synergy focusing on common cytotoxic drugs employed in AML treatment regimens.
Obatoclax mesylate efficacy is tested in a therapeutic NOG xenograft model of primary MLL+ infant AML.
研究类型
注册 (预期的)
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
取样方法
研究人群
描述
DISEASE CHARACTERISTICS:
- Diagnosis of acute myeloid leukemia (AML)
- Cryopreserved samples from infants with AML available
PATIENT CHARACTERISTICS:
- Not specified
PRIOR CONCURRENT THERAPY:
- Not specified
学习计划
研究是如何设计的?
设计细节
研究衡量的是什么?
主要结果指标
结果测量 |
---|
Obatoclax mesylate activity
|
Optimum in vitro combinations of obatoclax mesylate
|
Pharmacodynamic (PD) biomarkers of activity
|
Cell death mechanism in multiple-lineage leukemia (MLL) acute myeloid leukemia (AML)
|
Disease progression in a xenograft model of MLL-rearranged infant AML
|
次要结果测量
结果测量 |
---|
Physical assessment (in xenograft model)
|
Peripheral blast count reduction
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Apoptosis and/or ATG induction
|
Modulation of relevant PD biomarkers
|
合作者和调查者
调查人员
- 首席研究员:Carolyn A. Felix, MD、Children's Hospital of Philadelphia
研究记录日期
研究主要日期
学习开始
初级完成 (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 (估计)
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
其他研究编号
- AAML10B17 (其他标识符:Children's Oncology Group)
- COG-AAML10B17 (其他标识符:Children's Oncology Group)
- NCI-2011-02239 (注册表标识符:CTRP (Clinical Trial Reporting Program))
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