Cell Therapy for CD7 Positive Acute Leukemia or Mixed Lineage Leukemia Except Those Who Are Diagnosed With T-ALL/T-LBL Using CD7-Specific CAR-T Cells

This is an interventional treatment trial for Leukemia, T Cell Read More

Inclusion Criteria:

1. Diagnosis of refractory or relapsed T-cell acute lymphoblastic leukemia (T-ALL) or T-cell lymphoblastic lymphoma (T-LBL) according to the NCCN 2019.V2, the definition of refractory is failing to achieve complete remission after induction therapy ; the definition of relapse is either peripheral blood or bone marrow;
2. CD7-positive tumor (≥70% CD7 positive blasts by flow cytometry or immunohistochemistry (tissue) assessed by a CLIA certified Flow Cytometry/Pathology laboratory). tumors burden >5%,or MRD+， or new extramedullary lesions reappeared;
3. Life expectancy greater than 12 weeks;
4. KPS or Lansky score≥60;
5. HGB≥70g/L (can be transfused);
6. oxygen saturation of blood>90%;
7. Total bilirubin (TBil)≤3 × upper limit normal, aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤ 5×upper limit of normal;
8. Informed consent explained to, understood by and signed by patient/guardian

Exclusion Criteria:

1. 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);
2. Has an active GvHD;
3. Has a history of severe pulmonary function damaging;
4. With other tumors which is/are in advanced malignant and has/have systemic metastasis;
5. Severe or persistent infection that cannot be effectively controlled；
6. Merging severe autoimmune diseases or immunodeficiency disease;
7. Patients with active hepatitis B or hepatitis C([HBVDNA+]or [HCVRNA+]);
8. Patients with HIV infection or syphilis infection;
9. Has a history of serious allergies on Biological products (including antibiotics);
10. Clinically significant viral infection or uncontrolled viral reactivation of EBV(Epstein-Barr virus), CMV(cytomegalovirus), ADV(adenovirus), BK-virus, or HHV(human herpesvirus)-6;
11. 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.;
12. Have received transplant treatment for less than 6 months in prior to enrollment;
13. Being pregnant and lactating or having pregnancy within 12 months;
14. Any situations that the researchers believe will increase the risks for the subject or affect the results of the study