Study of Cord Blood-derived CAR NK Cells Targeting CD19/CD70 in Refractory/Relapsed B-cell Non-Hodgkin Lymphoma

• Status: Recruiting
• Trial end date: 2029-01-18
• Target enrollment: 0
• Participant gender: All

Summary

To find the highest tolerable dose of dualCAR-NK19/70 (a type of cell therapy) that can be given to patients who have B-cell lymphoma that is relapsed or refractory.

• Phase: Phase 1/Phase 2
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: Aibin Liang，MD，Ph.D.

Criteria

Inclusion Criteria:

1. Voluntarily participate in the study and sign the informed consent;

2. Age 18-75, male and female;

3. Histologically confirmed diffuse large B-cell lymphoma (DLBCL), transformed follicular lymphoma (tFL), primary mediastinal B-cell lymphoma (PMBCL), mantle cell lymphoma (MCL), and other Indolent B-cell NHL transforming types:

（A） Relapsed or Refractory DLBCL and tFL after 2 lines Immunotherapy or chemotherapy ; （B） Definition of Refractory large B cell lymphoma (SCHOLAR - 1 Research Standard) : disease progression after more than 4 courses of standard Immunotherapy or chemotherapy; Or the time of disease stabilization ≤ 6 months; Or disease progression or recurrence within 12 months after autologous hematopoietic stem cell transplantation (auto-HSCT); （C） Relapsed or Refractory MCL must be 1 line with immune chemotherapy; BTK inhibitors are resistant or intolerant as 2-line therapy; （D） Relapsed or Refractory disease after chemotherapy including rituximab and anthracycline.

4. There was at least one measurable lesion with the longest diameter ≥ 1.5cm;

5. Estimated life expectancy of more than 12 weeks other than primary disease;

6. Previously confirmed diagnosis as CD19+ or CD70+ B-NHL.

7. Eastern Cooperative Oncology Group (ECOG) performance status of 0 - 3.

8. Adequate reserve of organ function:

（A） Serum alanine aminotransferase (ALT) / aspartate aminotransferase (AST) ≤2.5 times the Upper Limit of Normal (ULN) for age; （B） A creatinine clearance (as estimated either by a direct urine collection or Cockcroft-Gault Equation) > 60mL/min; （C） Total bilirubin and alkaline phosphatase ≤1.5 times the Upper Limit of Normal (ULN) for age; （D） glomerular filtration rate > 50 ml/min （E） Cardiac ejection fraction (EF) ≥ 45% as determined by an echocardiogram (ECHO) or Multigated Radionuclide Angiography (MUGA); （F） Baseline oxygen saturation >92% on room air （G） Absolute neutrophil count > 1000/μL, Platelet count > 45,000/μL ,Hemoglobin > 80g/L;

9. Once previous autologous hematopoietic stem cell transplantation (auto-HSCT) is allowed;

10. For systemic therapy(Such as systemic chemotherapy, systemic radiotherapy and immunotherapy), at least 3 weeks，for Targeted drug therapy alone，at least 2 weeks，must have elapsed at the time of cell infusion;

11. Either having failed or Relapsed after CAR-T therapy at 3 months of assessment;

12. Subjects of child-bearing or child-fathering potential must be willing to practice birth control from the time of enrollment on this study until the follow-up period of the study. Women of childbearing potential must have a negative serum or urine pregnancy test.

13. The viral load of severe coronavirus disease 2019 (COVID-19) is undetectable per quantitative PCR and/or nucleic acid testing for two tests.

Exclusion Criteria:

1. Allergic to any of the components of cell products;

2. Previous or concurrent of other type of maligant tumors;

3. Acute GvHD or generalized chronic GvHD with grade II-IV (Glucksberg standard) after previous autologous hematopoietic stem cell transplantation (auto-HSCT); Or receiving of anti-GVHD therapy;

4. Known history of systemic gene therapy within the prior 3 months;

5. Active systemic fungal, viral, or bacterial infection (except for simple urinary tract infections and bacterial pharyngitis), however, Preventive treatment is permitted;

6. Known history of infection with hepatitis B (HBsAg positive, but HBV-DNA<1000 is not excluded) or hepatitis C virus (including virus carriers), syphilis and other acquired and congenital immunodeficiency diseases, including but not limited to HIV infection;

7. Class III or IV heart failure as defined by the New York Heart Association;

8. Persisting toxicities (>grade 1, except for clinically non-significant toxicities such as alopecia, fatigue, and anorexia) due to prior trerapy;

9. Known history of active seizures or presence of seizure activities or other central nervous system disease;

10. Have evidence of central nervous system lymphoma(CNS lymphoma) on CT or MRI;

11. Breast-feeding woman;

12. Any circumstances that possibly increase the risk of subjects or interfere with study results, which judged by investigator.