Senl-h19 CAR-T Cell Injection in the Treatment of Patients With Relapsed or Refractory Acute Lymphoblastic Leukemia

B-ALL Clinical Trial

Official title:

Senl-h19 CAR-T Cell Injection in the Treatment of Patients With Relapsed or Refractory Acute Lymphoblastic Leukemia

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT04792593
• Other study ID #: Senl-h19 CAR-T for B-ALL
• Status: Recruiting
• Phase: N/A
• Start date: December 3, 2020
• Est. completion date: February 10, 2022

Study information

• Verified date: March 2021
• Source: Hebei Senlang Biotechnology Inc., Ltd.
• Contact: Peihua MD Lu, PhD
• Phone: 008618611636172
• Email: peihua_lu[@]126.com
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This study is an open, dose-escalating clinical study, taking patients with relapsed or refractory acute lymphoblastic leukemia as the test subjects, including mouse-derived CAR-T treatment failure or relapse, or for any reason cannot bridge the transplant r/r B-ALL.

Description:

Main research objectives: To evaluate the safety and efficacy of Senl-h19 CAR-T in patients with relapsed or refractory acute lymphoblastic leukemia Secondary research purpose To investigate the cytokinetic characteristics of Senl-h19 CAR-T in patients with relapsed or refractory acute lymphoblastic leukemia.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 15
• Est. completion date: February 10, 2022
• Est. primary completion date: December 10, 2021
• Accepts healthy volunteers: No
• Gender: All
• Age group: 2 Years to 70 Years

Eligibility

Inclusion Criteria:

• 1. Sign the informed consent and be willing and able to comply with the visit, treatment protocol, laboratory examination, and other requirements of the study as specified in the study procedure sheet; 2. A definite diagnosis of relapsed and refractory acute B-lymphoblastic leukemia meets one of the following criteria: a) Mouse CAR-T treatment fails or relapses; B) Unable to bridge the graft for any reason;

3. Eastern Cooperative Oncology Group (ECOG) score =2; 4. Age =2 years old, male or female 5. CD19 positive tumor cells were detected by immunohistochemistry or flow cytometry; 6. Expected survival longer than 3 months; 7. The collection time of peripheral blood mononuclear immune cells must be at least 2 weeks from the last radiotherapy or systematic treatment of patients;

Exclusion Criteria:

• 1. Severe cardiac insufficiency; 2. Have a history of severe lung impairment; 3. Complicated with other advanced malignant tumors; 4. Complicated with severe or persistent infection that cannot be effectively controlled; 5. Complicated with severe autoimmune diseases or congenital immune deficiency; 6. Active hepatitis (HBVDNA or HCVRNA positive); Human immunodeficiency virus (HIV) infection or syphilis infection;

8. Have a history of severe allergy to biological products (including antibiotics); 9. The female patient is pregnant and lactating, or has a pregnancy plan within 12 months; 10. Conditions that the investigator believes may increase the risk to the subject or interfere with the outcome of the study.

Related Conditions & MeSH terms

• B-ALL
• Leukemia, Lymphoid
• Precursor Cell Lymphoblastic Leukemia-Lymphoma

Intervention

Biological:
• Senl-h19 CAR-T
Biological: Senl-h19 CAR-T; Drug: Cyclophosphamide,Fludarabine; Procedure: Leukapheresis

Locations

Country	Name	City	State
China	Hebei yanda Ludaopei Hospital	Yanda	Hebei

Sponsors (1)

Lead Sponsor	Collaborator
Hebei Senlang Biotechnology Inc., Ltd.

Country where clinical trial is conducted

China, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Safety: Incidence and severity of adverse events	To evaluate the possible adverse events occurred within first one month after CD7 CAR-T infusion, including the incidence and severity of symptoms such as cytokine release syndrome and neurotoxicity	First 1 month post CAR-T cells infusion
Primary	Efficacy: Remission Rate	Remission Rate including complete remission(CR)?CR with incomplete blood count recovery(CRi)?No remission(NR)	3 months post CAR-T cells infusion
Secondary	duration of response (DOR)	duration of response (DOR)	24 months post CAR-T cells infusion
Secondary	progression-free survival (PFS)	progression-free survival (PFS) time	24 months post CAR-T cells infusion
Secondary	CAR-T proliferation	the copy number of Senl h19 CAR- T cells in the genomes of PBMC by qPCR method	3 months post CAR-T cells infusion
Secondary	Cytokine release	Cytokine( IL-6,IL-10,IFN-?,TNF-a ) concentration (pg/mL) by flow cytometry method	First 1 month post CAR-T cells infusion