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Anti-CD19 CAR-Engineered NK Cells in the Treatment of Relapsed/Refractory Acute Lymphoblastic Leukemia

Acute Lymphoblastic Leukemia Clinical Trial

Official title:
A Phase Ⅰ Clinical Study on the Safety and Efficacy of Chimeric Antigen Receptor Gene Modified NK Cells Targeting CD19 in Patients With Recurrent or Refractory CD19 Positive Acute Lymphoblastic Leukemia

Clinical Trial Summary

This study is a single arm clinical study to observe the safety ，dose tolerance and pharmacokinetic characteristics of CAR NK-CD19 in patients with recurrent or refractory CD19 positive acute lymphoblastic leukemia, and preliminarily evaluate the effectiveness, the immunogenicity of the product and the correlation between the changes of cytokines after infusion and CRS , ICANS.

Clinical Trial Description

It is planned to select 9-21 patients with recurrent or refractory CD19 positive acute lymphoblastic leukemia （ALL）, from the lowest dose group. It is expected that 3-6 cases will be enrolled in each dose group. The protocol will be performed into screening period (-30~-10 days), prophase of lymophodepletion (-10~-5 days), Lymophodepletion (-5~-3 days), pre-infusion evaluation (-2~-1 days), infusion (day 0), and follow-up period (1-720 days). The incidence of DLT is observed after infusion. There are three preset dose groups in this clinical trial. The initial dose is 1.0 × 107 CAR positive NK cells/kg (body weight). Subsequent dose groups included 2.0 × 107 and 3.0 × 107 CAR positive NK cells/kg (body weight). The specific dose is determined by SRC based on the patient safety data and PK data. The maximum sample size of this study is tentatively 21 cases. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT05563545
Study type Interventional
Source Shanghai Simnova Biotechnology Co.,Ltd.
Contact
Status Completed
Phase Phase 1
Start date July 21, 2022
Completion date November 25, 2022
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