NCT00959231Unknown2 期
Transplantation of Umbilical Cord Blood From Unrelated Donors in Patients With Haematological Diseases Using a Reduced Intensity Conditioning Regimen
适应症
相关药物
试验速览
- 阶段
- 2 期
- 入组人数
- 60
- 试验地点
- 6
- 主要终点
- Non-relapse mortality at day 100
研究概览
简要总结
RATIONALE: Giving low doses of chemotherapy and total-body irradiation before a donor umbilical cord blood transplant helps stop the growth of abnormal cells. It also stops the patient's immune system from rejecting the donor's stem cells. The donated stem cells may replace the patient's immune cells and help destroy any remaining abnormal cells (graft-versus-tumor effect). Sometimes the transplanted cells from a donor can also make an immune response against the body's normal cells. Giving cyclosporine and mycophenolate mofetil before and after transplant may stop this from happening.
PURPOSE: This phase II trial is studying the side effects of donor umbilical cord blood transplant after cyclophosphamide, fludarabine phosphate, and total-body irradiation in treating patients with hematologic disease.
详细描述
OBJECTIVES:
- To assess the safety and efficacy of unrelated-donor umbilical cord blood transplantation (UCBT) using a nonmyeloablative preparative regimen in patients with hematological disease, in a multi-institution UK setting.
- To confirm that unrelated-donor UCBT following nonmyeloablative conditioning is associated with consistent and durable engraftment in these patients.
- To assess transplant-related mortality at day 100 associated with nonmyeloablative UCBT in these patients.
- To assess the incidence of grades II-IV and III-IV acute graft-vs-host disease (GVHD) in these patients.
- To assess the risk of relapse and progressive disease in these patients at 1 year post transplant after nonmyeloablative UCBT.
- To assess overall and progression-free survival of these patients at 1 year after nonmyeloablative UCBT.
- To assess immune reconstitution at 1, 2, 3, 6, 12, and 24 months after transplant as measured by quantitative recovery of B, T, and NK cells (flow cytometry), qualitative recovery of T cells (TREC and spectratyping), in vivo functional T-cell responses (EBV and CMV tetramers), and quantitative immunoglobulins.
OUTLINE: This is a multicenter study.
- Reduced-intensity conditioning regimen: Patients receive cyclophosphamide IV over 2 hours on day -6 and fludarabine phosphate IV over 1 hour on days -6 to -2. Patients undergo a single fraction of total-body irradiation on day -1.
- Umbilical cord blood (UCB) transplantation: Patients undergo umbilical cord blood transplantation on day 0.
- Graft-vs-host disease prophylaxis: Patients receive cyclosporine IV or orally on days -3 to 100 followed by taper and mycophenolate mofetil IV or orally on days -3 to 35 followed by taper.
Blood and bone marrow samples are collected periodically for analysis.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 2 Years 至 60 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •DISEASE CHARACTERISTICS:
- •Diagnosis of high-risk, advanced or poorly responding hematological disease for which a reduced-intensity hemopoietic stem cell transplantation is likely to be effective
- •Disease status is such that there is no alternative therapy likely to achieve a cure or provide a significant prolongation of disease-free survival
- •No chronic myelogenous leukemia in first chronic phase responding to imatinib or refractory blast crisis
- •No acute leukemia in morphological relapse/persistent disease (defined as > 5% blasts in normocellular bone marrow)
- •No malignant disease that is refractory to or progressive on salvage therapy
- •No myelofibrosis
- •Donor must be matched at HLA-A and -B at antigen level and HLA-DRB1 at allelic level
- •No available 5-6/6 HLA-A, -B, -DRB1 matched sibling donor OR 10/10 unrelated volunteer donor
- •PATIENT CHARACTERISTICS:
- •Karnofsky performance status (PS) 60-100% OR Lansky PS 50-100% (pediatrics)
- •Transaminases < 5 times upper limit of normal (ULN)
- •Bilirubin < 3 times ULN
- •Creatinine clearance > 50 mL/min
- •DLCO > 50% predicted
- •No supplemental oxygen requirements
- •Not pregnant or nursing
- •Negative pregnancy test
- •No HIV or HTLV (I and II) antibody positivity or evidence of infection
- •No acquired aplastic anemia
- •No decompensated congestive heart failure or uncontrolled arrhythmia and left ventricular ejection fraction ≥ 35%
- •No current active serious infection, in particular uncontrolled fungal infection
- •No congenital immune deficiencies
- •PRIOR CONCURRENT THERAPY:
- •See Disease Characteristics
- •More than 6 months since prior exposure to combination chemotherapy OR only 1 course of induction combination chemotherapy for myelodysplastic syndromes or acute myeloid leukemia (please discuss with study coordinator/s if this course contained fludarabine)
- •At least 6 months since prior myeloablative bone marrow transplantation
- •No prior irradiation that precludes the safe administration of an additional dose of 200 cGy of total-body irradiation
- •No prior autograft
排除标准
- 未提供
结局指标
主要结局
Non-relapse mortality at day 100
次要结局
- Incidence of grades II-IV and III-IV acute graft-vs-host disease (GVHD) at day 100 and chronic GVHD at 1 year
- Mixed chimerism
- Hemopoietic recovery
研究者
研究点 (6)
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