NCT00301860终止不适用
Feasibility of Reduced Intensity Allogeneic Hematopoietic Stem Cell Transplantation Followed by Donor Lymphocyte Infusions for Children at High Risk for Complications With Conventional Transplantation
适应症
相关药物
试验速览
- 阶段
- 不适用
- 状态
- 终止
- 入组人数
- 8
- 试验地点
- 1
研究概览
简要总结
RATIONALE: Giving chemotherapy before a donor peripheral blood stem cell transplant helps stop both the growth of cancer cells and the patient's immune system from rejecting the donor's stem cells. When the healthy stem cells from a donor are infused into the patient, they may help the patient's bone marrow make stem cells, red blood cells, white blood cells, and platelets. Sometimes the transplanted cells from a donor can make an immune response against the body's normal cells. Giving chemotherapy, such as fludarabine and melphalan, and antithymocyte globulin before transplant and cyclosporine and methotrexate after transplant may stop this from happening.
PURPOSE: This clinical trial is studying how well donor stem cell transplant, using low-dose chemotherapy and antithymocyte globulin, followed by donor white blood cell infusions work in treating young patients with hematologic cancer.
详细描述
OBJECTIVES:
- Determine the feasibility of allogeneic hematopoietic stem cell transplantation using a reduced-intensity conditioning regimen, in terms of whole blood engraftment rate at 100 days post transplant, in pediatric patients with hematopoietic malignancies who are at high risk for complications with conventional transplantation.
- Determine the feasibility of donor lymphocyte infusions (DLIs), in terms of number of patients who receive at least one DLI by 12 months post transplant, in patients treated with this regimen.
- Determine the toxicities of the conditioning regimen, in terms of 100-day post transplant nonrelapse-related death rate, in these patients.
- Determine the toxicity of DLI, in terms of acute and chronic graft-vs-host disease rate and 12-month post transplant nonrelapse-related death rate, in these patients.
OUTLINE: This is a pilot study.
- Reduced-intensity conditioning regimen: Patients receive fludarabine IV on days -6 to -2; antithymocyte globulin IV on days -5 to -2; and melphalan IV on days -3 and -2.
- Transplantation: Patients undergo allogeneic peripheral blood stem cell transplantation on day 0. Patients also receive filgrastim (G-CSF) IV beginning on day 5 and continuing until blood counts recover.
- Graft-vs-host disease (GVHD) prophylaxis: Patients receive cyclosporine IV or orally beginning on day -1 and continuing until at least day 28 and methotrexate IV on days 1, 3, and 6.
- Donor lymphocyte infusion (DLI): Patients with mixed chimerism, no acute GVHD requiring therapy, and no relapse/progression post transplant at day 90 may receive DLI. At least 30 days after discontinuation of immunosuppression, patients may receive up to 2 DLIs at least 8-12 weeks apart in the absence of GVHD.
At the completion of study treatment, patients are followed periodically for 2 years.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- — 至 21 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •DISEASE CHARACTERISTICS:
- •Diagnosis of one of the following hematopoietic malignancies:
- •Acute lymphoblastic leukemia or myeloid leukemia with < 30% blasts in the bone marrow
- •Juvenile myelomonocytic leukemia
- •Chronic myelogenous leukemia in chronic or accelerated phase
- •Relapsed non-Hodgkin's or Hodgkin's lymphoma in at least partial remission
- •Considered at high risk (> 30%) of toxic death with standard hematopoietic stem cell transplantation (HSCT), as indicated by at least one of the following:
- •Creatinine > 1.5 times normal OR creatinine clearance < 70 mL/min OR tubular damage that is not corrected by cessation of chemotherapy
- •DLCO < 60% of predicted OR history of prior intubation due to lung disease (intubation for surgery excluded)
- •Shortening fraction < 30%
- •History of disseminated fungal infection during chemotherapy OR currently receiving antifungal agents OR history of ≥ 2 septic episodes (confirmed by cultures) that required ICU support
- •Patients with improving fungal or other infections eligible
- •Improving infection is defined as confirmed negative cultures on 2 separate occasions, at least 1 week apart, and/or stable or improving imaging studies (e.g., CT scan) of the infected site
- •Two imaging studies taken at least 2 weeks apart must show stable or improved disease
- •History of stroke or abnormal MRI/MRA OR leukoencephalopathy OR seizures that are not fully controlled with anticonvulsants (> 2 episodes of seizures in the preceding year or 1 episode of status epilepticus in a patient who is receiving anticonvulsant therapy)
- •History of prior significant bleeding (e.g., pulmonary, CNS, or gastrointestinal) OR history of a clotting disorder as manifested by prior significant thromboses (e.g., superior vena cava, inferior vena cava, or femoral vein)
- •Failed conventional therapies and not eligible for myeloablative protocols
- •May have failed prior conventional HSCT
- •No active CNS leukemia
- •Unrelated or related donor available, meeting the following criteria:
- •Matched for at least 7/8 loci by high-resolution typing
- •One mismatch at A, B, or C loci allowed
- •Fully matched at DRB1 locus
- •PATIENT CHARACTERISTICS:
- •ECOG performance status (PS) 0-2 OR Karnofsky PS 60-100%
- •No active/progressing viral, bacterial, protozoal, or fungal infection
- •Transaminases ≤ 5 times normal (except in the presence of autoimmune liver disease)
- •Shortening fraction ≥ 25%
- •DLCO ≥ 40% OR pulse oximetry ≥ 85% on room air
- •Glomerular filtration rate ≥ 40 mL/min
- •PRIOR CONCURRENT THERAPY:
- •See Disease Characteristics
- •Prior prolonged intensive chemotherapy (> 3 years of therapy or ≥ 3 different chemotherapeutic protocols) allowed
排除标准
- 未提供
研究者
研究点 (1)
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