CD19 expression on B cell frequently lost after CD19-targeting CAR-T therapy. In present study, we construct a CD22-targeting chimeric antigen receptor to overcome this issue.
CD19 is an ideal target with great potential for treating B-cell-derived hematological malignancies. Although the complete remission rate is as high as 93% by using CD19-targeting CAR-T technology, approximately 60% patients will have recurrent disease. Among all the recurrent patients, two thirds is revealed to loss their CD19 expression on B cell surface. For overcoming this issue, we establish a new chimeric antigen receptor containing humanized single chain antibody sequence to target CD22 molecule on B cells.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
10
Autologous CAR-T cells with average 1\*10\^6 cells/kg body weight
Affiliated hospital of Xuzhou medical college
Xuzhou, Jiangsu, China
RECRUITINGComplete remission rate
The B cells in peripheral blood of all enrolled patients will be monitored every week
Time frame: 12 months
JunNian Zheng, M.D., Ph.D.
CONTACT
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