SCID Bu/Flu/ATG Study With T Cell Depletion
Phase I/II Trial of Hematopoietic Stem Cell Transplant (HSCT) for Children With Severe Combined Immune Deficiency (SCID) and Without an HLA-Matched Sibling Donor
研究概览
地位
条件
详细说明
The study is being conducted to assess the following:
- overall survival
- event-free survival (events are defined as: death,non-engraftment/2nd transplant, immune reconstitution failure)
- acute toxicity of the conditioning regimen
- engraftment frequency immune reconstitution frequency and tempo acute and chronic graft-versus-host disease (GVHD), frequency and severity.
The outcome from this protocol will be compared to the retrospective cohort consisting of all patients who have undergone haplo-identical HSCT for SCID at CHLA from 1984-2006 based on the assessment of the above-listed endpoints.
The CliniMACS device will be used for CD34+ selection in place of the Isolex 300i. The CliniMACS CD34 Reagent System is an investigational medical device that has not yet been approved by the FDA. This device is used in vitro to select and enrich specific cell populations. When using the CliniMACS CD34 Reagent, the system selects CD34+ cells from heterogenous hematological cell populations for transplantation in cases where this is clinically indicated.
研究类型
注册 (实际的)
阶段
- 阶段2
- 阶段1
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
- Children's Hospital Los Angeles
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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
Inclusion Criteria:
- All patients with SCID who lack a histocompatible sibling or HLA-matched related donor will be considered as candidates for this study protocol.
Eligible patients must have adequate physical function to tolerate the chemotherapy conditioning regimen and the HSCT, as measure by:
- Renal: creatinine clearance or GFR ≥50 ml/min/1.73m2, and not requiring dialysis
- Pulmonary: Because patients with SCID frequently present with infectious pneumonia causing ventilatory failure, patients will be considered for enrollment in the study even if respiratory failure requiring mechanical ventilatory support is present. In patients recently diagnosed with pneumonia, efforts to stabilize the respiratory status will be made prior to enrollment in the study.
- Infectious disease status. The presence of infection per se will not be a reason for exclusion from the study. Patients with SCID are frequently infected with both routine pathogens as well as opportunistic infections. Antibiotic, antifungal and antiviral prophylaxis and therapy will be instituted as clinically indicated. Despite the use of antimicrobial therapy, the ability to control infections will not be achieved unless HSCT is performed. Therefore, subjects may be enrolled in the study, even though infection is present, because control of infection may depend on engraftment of a donor immune system.
- Patients will be 0-21 years of age.
Exclusion Criteria:
- Patient with histocompatible sibling or other related donor
- End-organ failure that precludes the ability to tolerate the transplant procedure, including conditioning.
- Renal failure requiring dialysis
- Congenital heart disease resulting in congestive heart failure
- Severe CNS disease, e.g., coma or intractable seizures
- Ventilatory failure due to non-infectious etiology
- Major congenital anomalies that adversely affect survival, eg CNS malformations
- Metabolic diseases that would affect transplant survival, eg urea cycle disorders
- HIV infection
Since the only chance of survival for patients with SCID is successful transplantation, all patients with SCID will be considered to be potential subjects for the study, regardless of end-organ dysfunction.
学习计划
研究是如何设计的?
设计细节
- 主要用途:治疗
- 分配:非随机化
- 介入模型:单组作业
- 屏蔽:无(打开标签)
武器和干预
参与者组/臂 |
干预/治疗 |
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其他:unrelated BM with T cell depletion
Acceptable matching for matched unrelated donor (MUD) bone marrow will be genotypic matches at 10 of 10 HLA alleles (HLA-A, B, C, DR and DQ) or 9 of 10 HLA alleles.
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Remaining unmanipulated bone marrow will be processed to isolate CD34+ cells (T cell depleted).
其他名称:
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其他:unrelated cord blood
Acceptable matching for unrelated cord blood will be a genotypic match at 6 of 6 alleles (HLA A, B and DR) or 5 of 6 alleles, but not with mismatches at both alleles of a single locus (e.g.
not mismatched for both HLA A alleles).
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Cord blood will be thawed (and processed if ABO incompatibility) per institutional SOP.
其他名称:
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其他:haplo BM with T cell depletion
If there is no unrelated donor available meeting the matching criteria for unrelated bone marrow or unrelated cord blood donors.
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haplo-identical (parental) bone marrow will be processed for CD34+ cell isolation.
其他名称:
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其他:unrelated PBSC with T cell depletion
The preferred source will be bone marrow, however, if a donor is unable or unwilling to donate bone marrow, peripheral blood stem cells (PBSC) will be allowed.
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peripheral blood stem cell will be processed for CD34+ cell isolation.
其他名称:
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研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
---|---|---|
Number of Participants With Engraftment
大体时间:100 day
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Engraftment is defined as recovery of blood counts (neutrophil and platelet engraftment) with cells of donor origin, documented by either bone marrow or peripheral blood chimerism assays after hematopoietic stem cell transplant.
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100 day
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
---|---|---|
Number of Participants With Donor-derived CD3+ T Lymphocytes >/= 100/mm3
大体时间:1 year
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Absolute number of donor-derived CD3+ T lymphocytes >/= 100/mm3 in participating subjects.
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1 year
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其他结果措施
结果测量 |
措施说明 |
大体时间 |
---|---|---|
Number of Participants With Veno-occlusive Disease (VOD) - Moderate and Severe
大体时间:100 days
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Evaluation of veno-occlusive disease determined by the presence of the following features; fluid retention, weight gain, leaky capillary syndrome, painful liver enlargement, refractoriness to platelet tranfusion and hyperbilirubinemia
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100 days
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Number of Participants With Graft Versus Host Disease (GVHD) - Grade III or IV
大体时间:1 year
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GVHD disease surveillance done by clinical evaluation, to include history, physical examination, specifically for rash, jaundice, liver dysfunction, nausea and vomiting, diarrhea and failure to thrive.
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1 year
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Overall Survival
大体时间:1 year
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Overalls survival of patient at 1 year post transplant
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1 year
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合作者和调查者
调查人员
- 首席研究员:Neena Kapoor, M.D.、Children's Hospital Los Angeles, University of Southern California
研究记录日期
研究主要日期
学习开始 (实际的)
初级完成 (实际的)
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
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