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

NCT ID: NCT04516551

Last Updated: 2020-11-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE1

Total Enrollment

18 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-11-20

Study Completion Date

2022-12-01

Brief Summary

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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 transplantation. Nowadays there is no effective way to salvage patients in such conditions. T cells derived from healthy matched sibling or unrelated donors have not been restrained by tumor micro-environment and retain anti-leukemia ability, which makes it serve well for patients with relapsed B-ALL. So we launched a multi-center clinical trial to proved the safety and efficacy of anti-CD19 CAR-T cells for relapsed B cell ALL.

Detailed Description

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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 malignancies. However, for B-ALL patients suffered from relapse after allo-HSCT (hematopoietic stem cell transplant), the T cells derived from healthy donor seems like a better origin for CAR-T cells producing because T cells derived from healthy matched sibling or unrelated donors have not been restrained by tumor micro-environment and retain anti-leukemia ability. So after we designed a clinical trial to manifest the safety and efficacy of anti-CD19 CAR-T cells for patients with relapsed B cell ALL.

Conditions

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Relapsed Adult ALL B Cell Leukemia

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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anti-CD19 allo-CAR-T

The study will employ dose level cohorts of three patients that will be treated at each level described below, based on the number of T cells to be infused using the "3 + 3" dose-escalation strategy to find MTD followed by a dose-expansion phase at determining optimal dosage.

dosage: the number of anti CD19+CD22 CAR T cells

-1(if needed) 1×10\^6/KG

3×10\^6 /KG 6×10\^6 /KG 1×10\^7/KG Treatment follows a lymphodepletion, chemotherapy regimen that consists of Fludarabine (30 mg/m2 per day) and Cyclophosphamide (300mg/m2 per day) for 3 days or bendamustione (90mg/m2 per day) for two days prior to cell infusion.

Group Type EXPERIMENTAL

anti-CD19 allo-CAR-T cells

Intervention Type BIOLOGICAL

The T cells collected from haploidentical donors have been manufactured to express CAR to binding CD19 on B-cell leukemia.

Interventions

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anti-CD19 allo-CAR-T cells

The T cells collected from haploidentical donors have been manufactured to express CAR to binding CD19 on B-cell leukemia.

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

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

Exclusion Criteria

1. 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);
2. Severe mental disorders;
3. A history of genetic diseases such as Fanconi anemia, Shudder-Dale syndrome, Costman syndrome, or any other known bone marrow failure syndrome;
4. Subjects with II-IV grade acute graft versus host disease GVHD (Glucksberg Standrad) or chronic GVHD.
5. 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;
6. 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);
7. Subjects with a history of CNS lymphoma, CSF malignant cells, or brain metastasis;
8. Subjects with a history of CNS disease,such as epilepsy, cerebral ischemia/hemorrhage, dementia, cerebellar disease, or any autoimmune disease involving CNS;
9. Any of the following virological ELISA results are positive: HIV antibody, HCV antibody, TPPA, HBsAg;
10. Active infection requiring systematic treatment within 2 weeks before single collection;
11. Subjects with known severe allergic reactions to cyclophosphamide or fludarabine, or diagnosed as the allergy;
12. 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;
13. Presence of pulmonary fibrosis;
14. 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);
15. 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;
16. 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;
17. The lactating woman who is reluctant to stop breastfeeding;
18. Any other condition considered unsuitable by the investigator.
Minimum Eligible Age

14 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Gracell Biotechnologies (Shanghai) Co., Ltd.

INDUSTRY

Sponsor Role collaborator

First Affiliated Hospital of Zhejiang University

OTHER

Sponsor Role collaborator

The Second Affiliated Hospital of Chongqing Medical University

OTHER

Sponsor Role collaborator

The Affiliated Hospital Of Guizhou Medical University

OTHER

Sponsor Role collaborator

The General Hospital of Western Theater Command

OTHER

Sponsor Role collaborator

Chongqing University Cancer Hospital

OTHER

Sponsor Role collaborator

The First Affiliated Hospital of Anhui Medical University

OTHER

Sponsor Role collaborator

Tang-Du Hospital

OTHER

Sponsor Role collaborator

920th Hospital of Joint Logistics Support Force of People's Liberation Army of China

OTHER

Sponsor Role collaborator

Xinqiao Hospital of Chongqing

OTHER

Sponsor Role lead

Responsible Party

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Xi Zhang, MD

Chef of Hematology Department

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Xi Zhang, MD phD

Role: STUDY_CHAIR

Xinqiao Hospital of Chongqing

He Huang, MD

Role: PRINCIPAL_INVESTIGATOR

First Affiliated Hospital of Zhejiang University

Locations

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Department of Hematology, Xinqiao Hospital

Chongqing, Chongqing Municipality, China

Site Status RECRUITING

Countries

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China

Central Contacts

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Xi Zhang, MD phD

Role: CONTACT

Phone: 13808310064

Email: [email protected]

Ruihao Huang

Role: CONTACT

Phone: 18984398751

Email: [email protected]

Facility Contacts

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Ruihao Huang

Role: primary

References

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Luo Y, Gao L, Liu J, Yang L, Wang L, Lai X, Gao S, Liu L, Zhao L, Ye Y, Wang M, Shen L, Cao WW, Wang D, Li W, Zhang X, Huang H. Donor-derived Anti-CD19 CAR T cells GC007g for relapsed or refractory B-cell acute lymphoblastic leukemia after allogeneic HSCT: a phase 1 trial. EClinicalMedicine. 2023 Dec 21;67:102377. doi: 10.1016/j.eclinm.2023.102377. eCollection 2024 Jan.

Reference Type DERIVED
PMID: 38204488 (View on PubMed)

Other Identifiers

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Anti-CD19 allo-CAR-T

Identifier Type: -

Identifier Source: org_study_id