Clinical Study of Senl-T7 CAR T Cells in the Treatment of Relapsed and Refractory CD7+ Acute T Lymphoblastic Leukemia and T Lymphoblastic Lymphoma
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 发起方
- 入组人数
- 100
- 试验地点
- 1
- 主要终点
- Safety: Incidence and severity of adverse events
研究概览
简要总结
This is an open, prospective, dose-escalation clinical study to evaluate the safety and efficacy of Senl-T7 in patients with relapsed or refractory CD7+ acute T lymphoblastic leukemia or T lymphoblastic lymphoma.Meanwhile, PK/PD indexes of Senl-T7 were collected.
详细描述
The CARs consist of an anti-CD7 single-chain variable fragment（scFv）, a portion of the human CD137（4-1BB） molecule, and the intracellular component of the human CD3ζ molecule. Prior to CAR-T cell infusion, the patients will be subjected to preconditioning treatment. After CAR-T cell infusion, the patients will be evaluated for adverse reactions and efficacy.
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
- 2 Years 至 70 Years（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Diagnosis of relapsed/refractory T-cell lymphoblastic leukemia or T-cell lymphoblastic lymphoma: Induction therapy failed to achieve a complete remission of minor residual negative; Recurrence: after complete remission, any tumor load in the peripheral blood or bone marrow was 5%, or slightly residual positive, or new extramedullary lesions occurred；
- •CD7 expression in tumor cells was detected by flow cytometry；
- •Life expectancy greater than 12 weeks；
- •KPS or Lansky score≥60;
- •HGB≥70g/L (can be transfused);
- •2-70 years old;
- •Oxygen saturation of blood#90%#;
- •HGB≥70g/L（blood transfusion allowed）;
- •Total bilirubin (TBil)≤3 × upper limit normal, aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤ 5×upper limit of normal;
- •Informed consent explained to, understood by and signed by patient/ guardian.
排除标准
- •Any of the following cardiac criteria: Atrial fibrillation/flutter; Myocardial infarction within the last 12 months; Prolonged QT syndrome or secondary prolonged QT, per investigator discretion. Cardiac echocardiography with LVSF (left ventricular shortening fraction)<30% or LVEF(left ventricular ejection fraction)<50%; or clinically significant pericardial effusion. Cardiac dysfunction NYHA(New York Heart Association) III or IV (Confirmation of absence of these conditions on echocardiogram within 12 months of treatment);
- •Has an active GvHD;
- •Has a history of severe pulmonary function damaging;
- •With other tumors which is/are in advanced malignant and has/have systemic metastasis;
- •Severe or persistent infection that cannot be effectively controlled;
- •Merging severe autoimmune diseases or immunodeficiency disease;
- •Patients with active hepatitis B or hepatitis C([HBVDNA+]or [HCVRNA+]);
- •Patients with HIV infection or syphilis infection;
- •Has a history of serious allergies on Biological products (including antibiotics);
- •Clinically significant viral infection or uncontrolled viral reactivation of EBV(Epstein-Barr virus), CMV(cytomegalovirus), ADV(adenovirus), BKvirus, or HHV(human herpesvirus)-6;
- •Presence of symptomatic disorders of the central nervous system, which include but not limited to uncontrolled epilepsy, cerebrovascular ischemia/hemorrhage, dementia, and cerebellar disease, etc.;
- •Have received transplant treatment for less than 6 months in prior to enrollment;
- •Being pregnant and lactating or having pregnancy within 12 months;
- •Any situations that the researchers believe will increase the risks for the subject or affect the results of the study.
结局指标
主要结局
Safety: Incidence and severity of adverse events
时间窗: First 1 month post CAR-T cells infusion
To evaluate the possible adverse events occurred within first one month after CD7 CAR-T infusion, including the incidence and severity of symptoms such as cytokine release syndrome and neurotoxicity
Remission Rate
时间窗: 3 months post CAR-T cells infusion
To obsere the efficacy of CAR-T cells after infusion, complete remission (CR), complete remission with incomplete recovery of blood cells (CRi), minimal tumor residual positive(MRD+) or negative (MRD-) CR/CRi, disease recurrence or progression (PD) will be used for evaluation.
次要结局
未报告次要终点