Status:

UNKNOWN

Anti-CD19 Allo-CAR-T Cells for Relapsed B Cell Malignancies After HSCT

Lead Sponsor:

Xinqiao Hospital of Chongqing

Collaborating Sponsors:

Gracell Biotechnologies (Shanghai) Co., Ltd.

First Affiliated Hospital of Zhejiang University

Conditions:

Relapsed Adult ALL

B Cell Leukemia

Eligibility:

All Genders

14-75 years

Phase:

PHASE1

Brief Summary

The patients with relapsed B cell acute lymphoblastic leukemia (ALL) after hematopoietic stem cell transplant (HSCT) have a poor prognosis, especially for these relapsed in a short time after transpla...

Detailed Description

The stunning response rate of anti-CD19(cluster of differentiation antigen 19) auto-CAR(chimeric antigen receptor)-T cell therapy brings hope to patients with relapsed or refractory B-cell hematologic...

Eligibility Criteria

Inclusion

  • Diagnosis of relapsed B-cell acute lymphoblastic leukemia (B-ALL).
  • Patients have received hematologic stem cell transplantation from matching sibling donor or unrelated donor.
  • CD19-positive tumor (\>20% CD19 positive blasts by flow cytometry or immunohistochemistry (tissue))
  • Hgb ≥ 7.0 (can be transfused)
  • Life expectancy greater than 12 weeks
  • Informed consent explained to, understood by and signed by the patient/guardian. The patient/guardian is given a copy of informed consent.

Exclusion

  • Other tumors except cured non-melanoma skin cancer, cervical cancer in situ, superficial bladder cancer, breast duct cancer in situ, or other malignant tumors with complete remission of more than 5 years);
  • Severe mental disorders;
  • A history of genetic diseases such as Fanconi anemia, Shudder-Dale syndrome, Costman syndrome, or any other known bone marrow failure syndrome;
  • Subjects with II-IV grade acute graft versus host disease GVHD (Glucksberg Standrad) or chronic GVHD.
  • Heart disease with grade III-IV heart failure \[NYHA classification\], myocardial infarction, angioplasty or stenting, unstable angina or other heart diseases with prominent clinical symptoms within one year before admission;
  • Subjects with any indwelling catheter or drainage tube (such as percutaneous nephrostomy tube, bile drainage tube or pleura/peritoneum/pericardium catheter), should be excluded. (Special central venous catheter is allowed);
  • Subjects with a history of CNS lymphoma, CSF malignant cells, or brain metastasis;
  • Subjects with a history of CNS disease,such as epilepsy, cerebral ischemia/hemorrhage, dementia, cerebellar disease, or any autoimmune disease involving CNS;
  • Any of the following virological ELISA results are positive: HIV antibody, HCV antibody, TPPA, HBsAg;
  • Active infection requiring systematic treatment within 2 weeks before single collection;
  • Subjects with known severe allergic reactions to cyclophosphamide or fludarabine, or diagnosed as the allergy;
  • History of autoimmune diseases (e.g. Crohn disease, rheumatoid arthritis, systemic lupus erythematosus) that cause end-organ damage or require systemic immunosuppressive medications or systemic disease modifying drugs in the past 2 years;
  • Presence of pulmonary fibrosis;
  • Subjects who have received other clinical trial treatment within 4 weeks before participating in this trial should be excluded. Or the signing date of informed consent is within 5 half-lives of the last application of another clinical trial (whichever is longer);
  • Subjects with poor compliance due to physiological, family, social, geographical and other factors, or those unable to cooperate with the study plan or follow-up;
  • At the discretion of the investigator, there are complications requiring systemic corticosteroid therapy (≥ 5mg / day of prednisone or equivalent dose of other corticosteroids) or other immunosuppressive drugs within 6 months after this clinical research treatment;
  • The lactating woman who is reluctant to stop breastfeeding;
  • Any other condition considered unsuitable by the investigator.

Key Trial Info

Start Date :

November 20 2020

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

December 1 2022

Estimated Enrollment :

18 Patients enrolled

Trial Details

Trial ID

NCT04516551

Start Date

November 20 2020

End Date

December 1 2022

Last Update

November 17 2020

Active Locations (1)

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Page 1 of 1 (1 locations)

1

Department of Hematology, Xinqiao Hospital

Chongqing, Chongqing Municipality, China, 400037