New cell therapy JY231 targets tough leukemia in early human test

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. up to 75 years (Child, Adult) , either sex； 2. Bone marrow cell morphology examination showed the proportion of primitive and immature lymphocytes in the bone marrow is \>5%, or the bone marrow MRD analysis comfirmed as B-ALL. 3. Flow cytometry or histology confirmed positive expression of cluster of differentiation 19 (CD19); 4. According to the researcher's assessment, the expected survival period is greater than 3 months; 5. Eastern Cooperative Oncology Group (ECOG) physical condition score ≤ 3; 6. The patient has good liver, kidney, heart, and lung functions: alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≤ 2.5 × upper limit of normal(ULN), which can be relaxed to ≤ 5 × ULN for patients with liver invasion; Total serum bilirubin \< 34 μ Mol/L; Creatinine clearance rate\>30 mL/min; Cardiac ejection fraction (EF) ≥ 40%, without pericardial effusion and significant arrhythmia; Indoor oxygen saturation (SpO2) ≥ 92%; 7. Peripheral blood lymphocyte absolute count: absolute lymphocyte count (ALC) ≥ 0.5E9/L, blood platelet (PLT) \> 30E9/L, Hb \> 80g/L, with a single venous access and no other contraindications for blood cell separation; 8. MRI examination showed no active malignant cells in the cerebrospinal fluid, no brain metastases, or no central nervous system leukemia; 9. Individuals with fertility must agree to the use of efficient contraceptive methods; 10. The subject or their legal guardian can understand and voluntarily sign a written informed consent form. Exclusion Criteria: 1. Pregnant or lactating women, as well as women with pregnancy plans within six months; 2. Virological tests of hepatitis B, hepatitis C, AIDS, syphilis and cytomegalovirus were positive; 3. Having a history of other tumors (excluding skin or cervical carcinoma in situ cured by root therapy and without evidence of disease activity); 4. Previously received treatment targeting CD19; 5. Received autologous hematopoietic stem cell transplantation within 6 weeks; 6. The presence of uncontrollable active bacterial or fungal infections; 7. Allergies to research related drugs or cellular components; 8. Active autoimmune diseases exist; 9. Patients with unstable or active ulcers or gastrointestinal bleeding currently present; 10. Individuals with mental or psychological disorders who cannot cooperate with treatment and efficacy evaluation; 11. Received other experimental drug treatments within the past 3 months; 12. Existence of grade II-IV acute graft versus-host disease (GVHD) or widespread chronic GVHD; 13. Researchers believe that other reasons are not suitable for clinical trial participants.