A Single Center, Open Label, Single Arm Exploratory Clinical Study of CD19-Directed Allogeneic Chimeric Antigen Receptor CART-cell Immunotherapy Cell Therapy in Pediatric Patients With Relapsed/Refractory B-Cell Acute Lymphoblastic Leukemia
试验速览
- 阶段
- 早期 1 期
- 状态
- 进行中（未招募）
- 入组人数
- 6
- 试验地点
- 1
- 主要终点
- Dose Limiting Toxicity
研究概览
简要总结
The purpose of this study is to evaluate the safety and tolerability of CD19-Directed Allogeneic Chimeric Antigen Receptor T- cell (alloCART-19)therapy in pediatric patients with relapsed/refractory acute lymphoblastic leukemia（ALL）.
详细描述
This is a single center, open label, single arm, dose escalation study to explore the safety, tolerability, and pharmacokinetic / pharmacodynamic profile of CD19-Directed Allogeneic Chimeric Antigen Receptor T- cell (alloCART-19) in pediatric patients with relapsed or refractory B-cell acute lymphoblastic leukemia. The study will also assess the preliminary efficacy of CD19-Directed Allogeneic Chimeric Antigen Receptor T- cell (alloCART-19). For this exploratory clinical trial, approximately 3-6 patients will be enrolled. During dose escalation, at least one evaluable patient will be enrolled at each dose level. Once DLT is reached, 1 to 3 additional patients will be enrolled at the dose level below DLT, which has been tested and determined to be safe in the trial, to evaluate the optimal safe and therapeutic dose to be approved by the investigator and sponsor.
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
- 1 Year 至 18 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- 未提供
排除标准
- 未提供
研究组 & 干预措施
alloCART-19
For the very first patient, the initial dose could be administered via one or three intravenous infusions within 1 to 5 days. Starting from the second patient, the investigator will decide whether to use single or multiple alloCART-19 infusions, based on the treatment experience at previous dose level(s) and the patient's baseline disease burdens.
A lymphodepletion conditioning with cyclophosphamide and fludarabine will be conducted before alloCART-19 infusion.
干预措施: alloCART-19 (Genetic)
alloCART-19
For the very first patient, the initial dose could be administered via one or three intravenous infusions within 1 to 5 days. Starting from the second patient, the investigator will decide whether to use single or multiple alloCART-19 infusions, based on the treatment experience at previous dose level(s) and the patient's baseline disease burdens.
A lymphodepletion conditioning with cyclophosphamide and fludarabine will be conducted before alloCART-19 infusion.
干预措施: Cyclophosphamide (Drug)
alloCART-19
For the very first patient, the initial dose could be administered via one or three intravenous infusions within 1 to 5 days. Starting from the second patient, the investigator will decide whether to use single or multiple alloCART-19 infusions, based on the treatment experience at previous dose level(s) and the patient's baseline disease burdens.
A lymphodepletion conditioning with cyclophosphamide and fludarabine will be conducted before alloCART-19 infusion.
干预措施: Fludarabine (Drug)
结局指标
主要结局
Dose Limiting Toxicity
时间窗: Day 28 after the first alloCART-19 infusion
Dose Limiting Toxicity (DLT) is defined as patients with the adverse event (AE) or laboratory abnormality per Lee DW and Locke FL standards and management guideline, and should be possibly related to alloCART-19 cell therapy, and should be unrelated to the disease itself, disease progression, concomitant diseases or concomitant medication. DLT will be analyzed as categorical variable，coded as 1 for DLT occur, 0 for no DLT.
次要结局
- The occurrence of adverse events(After the first alloCART-19 infusion for 2 year)
- Objective Response Rate(Day 28 and 3 months after the first alloCART-19 infusion)
- Best Overall Response(Day 28 and 3 months after the first alloCART-19 infusion)
研究者
Xiaowen Zhai
vice president
Children's Hospital of Fudan University