血红蛋白病的 TCRab 耗竭 PBSCT 试点研究
2026年4月7日 更新者:Timothy Olson
具有 TCRαβ+ T 细胞和 B 细胞耗竭的紧密匹配无关供体外周血干细胞移植治疗镰状细胞病和重型地中海贫血患者
这是一项外周干细胞移植 (PSCT) 的单臂试验研究,使用体外 t 细胞受体 αβ+(TCRαβ+) T 细胞和分化簇 19+β (CD19+ B) 细胞耗竭无关供体 (URD) 移植物在患有镰状细胞病 (SCD) 和重型 β 地中海贫血 (BTM) 的患者中使用 CliniMACS 设备。
研究概览
详细说明
这是一项单臂试验研究,使用 CliniMACS 设备对 SCD 和 BTM 患者进行外周血干细胞移植 (PSCT) 和体外 TCRαβ+ T 细胞和 CD19+ B 细胞耗竭的 URD 移植物。
除了基于 CliniMACS 的细胞处理外,PSCT 还将根据费城儿童医院 (CHOP) 细胞治疗和移植科的现行护理标准进行,包括使用标准化疗预处理方案和标准后续实验室评估。
该研究将确定该策略在植入、急性和慢性移植物抗宿主病 (GvHD) 发生率以及一年总体生存率和无事件生存率方面的疗效。
研究类型
介入性
注册 (实际的)
8
阶段
- 不适用
联系人和位置
本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。
学习地点
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Pennsylvania
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Philadelphia、Pennsylvania、美国、19104
- Children's Hospital of Philadelphia
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参与标准
研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
2年 至 25年 (孩子、成人)
接受健康志愿者
不
描述
纳入标准
严重的镰状细胞病
- 基因型:血红蛋白 SS、血红蛋白 SC、血红蛋白 SD、SOArab 或血红蛋白 SBeta 地中海贫血
- 必须至少具有以下疾病表现之一
- 入组前任何时间有临床症状的神经系统事件(中风)或任何持续超过 24 小时的神经系统缺陷
- 入组前 2 年内每年两次或多次血管闭塞事件 (VOE) 的病史。 患者必须对羟基脲具有耐药性,定义为尽管接受羟基脲至少 6 个月仍发展为 VOE。 也可以招募对羟基脲不耐受的患者。
血管闭塞事件包括:
- 急性胸部综合征
- 需要静脉疼痛管理和/或住院治疗的疼痛发作
- 异常勃起
- 脾脏隔离(定义为在脾脏急剧增大的情况下血红蛋白下降 2 g/dL。 这将作为临床护理的一部分并在研究之前确定)
- 根据治疗血液学家的判断,定期进行红细胞 (RBC) 输血治疗,定义为在入组前一年接受≥ 8 次红细胞输血,以预防任何类型的镰状细胞相关并发症。
重型β地中海贫血
- 基因型:通过分子遗传学检测确认的 Beta 地中海贫血基因型(可能包括 E/Beta0 和 Beta0/Beta+ 基因型)
- 必须符合输血依赖性地中海贫血的临床诊断,定义为在研究登记前的两年内每年需要≥ 8 次红细胞输血。
排除标准
- 不符合疾病、器官或感染标准的患者。
- 以前 造血干细胞移植 (HSCT)
- 没有合适的无关供体的患者。 具有合适的完全匹配的相关供体的患者也不符合资格。
- 怀孕的女性。 所有有生育能力的女性都必须进行阴性妊娠试验。
- 在开始移植治疗之前,必须停止参与接受研究药物的临床试验。 具体而言,移植化疗应在最后一次使用研究药物后至少 3 个半衰期后才开始。
- 严重的 RBC 同种免疫,定义为由于抗 RBC 抗体而无法接受浓缩 RBC 输血治疗。 如果患者愿意接受 HLA 抗体脱敏治疗,则可以在筛选时检测到具有高滴度抗供体人类白细胞抗原 (HLA) 抗体的患者入组。
学习计划
本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。
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:并行分配
- 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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实验性的:镰状细胞性贫血症
患有镰状细胞病 (SCD) 的患者将在使用 TCRalpha/β 和 B 细胞耗尽的外周血干细胞进行造血干细胞移植之前接受先前建立的、基于疾病特异性化疗的预处理方案,这些干细胞来自密切匹配的无关供体。
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根据研究人员手册和技术手册,遵循实验室标准操作程序 (SOP) 并使用无菌技术,将使用 CliniMACS 设备处理来自密切匹配的无关供体的外周血干细胞,以去除 TCRalpha/β T 细胞和 B 细胞
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实验性的:重型β地中海贫血
在使用 TCRalpha/β 和 B 细胞耗尽的外周血干细胞进行造血干细胞移植之前,重型 Beta 地中海贫血 (BTM) 患者将接受先前建立的、基于疾病特异性化疗的预处理方案,这些干细胞来自密切匹配的无关供体。
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根据研究人员手册和技术手册,遵循实验室标准操作程序 (SOP) 并使用无菌技术,将使用 CliniMACS 设备处理来自密切匹配的无关供体的外周血干细胞,以去除 TCRalpha/β T 细胞和 B 细胞
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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 |
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移植失败率
大体时间:移植后最多1年
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原发性移植物衰竭(定义为干细胞输注后第+30天仍无中性粒细胞植入证据)和继发性移植物衰竭(定义为在无已知感染或药物抑制情况下,初始植入后ANC <500持续至少7-10天,并通过骨髓低细胞量活检和/或血或骨髓中总供体嵌合率<10%确认)的患者人数
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移植后最多1年
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中性粒细胞植入时间
大体时间:移植后最多60天
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中性粒细胞植入天数(首次连续3天ANC >500/µl的第一个日期)
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移植后最多60天
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急性移植物抗宿主病(GVHD)发生率
大体时间:移植后长达 100 天
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急性移植物抗宿主病(GvHD)的评估依据是发生急性移植物抗宿主病的患者人数,并根据当前国际骨髓移植登记中心(CIBMTR)的报告指南进行分级。\n分级遵循基于皮肤、肝脏和胃肠道受累严重程度的既定标准,包括皮疹范围、胆红素升高和胃肠道症状(如腹泻量)。\n评估通过临床评估和与标准移植相关急性GvHD分级实践一致的实验室数据进行。
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移植后长达 100 天
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慢性移植物抗宿主病(GVHD)的发生率
大体时间:移植后最多两年
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发生II-IV级急性GVHD(包括重度III-IV级急性GVHD)和广泛性慢性GVHD的患者数量
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移植后最多两年
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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因治疗死亡人数
大体时间:移植后长达100天
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与研究治疗相关的受试者死亡人数
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移植后长达100天
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事件无事件生存(EFS)概率
大体时间:移植后最多1年
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无并发症或事件的患者数量
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移植后最多1年
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总生存期(OS)的概率
大体时间:移植后1年
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具有以下生存结局的患者人数:一年总生存期(OS)
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移植后1年
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病毒再激活和症状性病毒感染的发生率
大体时间:移植后长达 1 年
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经历过需要进行治疗的病毒再激活和有症状的病毒感染的患者人数,包括巨细胞病毒(CMV)、腺病毒和EB病毒(EBV)。
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移植后长达 1 年
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合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
调查人员
- 首席研究员:Timothy Olson, MD, PhD、Children's Hospital of Philadelphia
出版物和有用的链接
负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。
一般刊物
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研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始 (实际的)
2020年5月14日
初级完成 (实际的)
2025年6月23日
研究完成 (实际的)
2025年10月1日
研究注册日期
首次提交
2020年8月19日
首先提交符合 QC 标准的
2020年8月19日
首次发布 (实际的)
2020年8月21日
研究记录更新
最后更新发布 (实际的)
2026年4月28日
上次提交的符合 QC 标准的更新
2026年4月7日
最后验证
2026年3月1日
更多信息
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