To evaluate the efficacy and safety of anti-CD1a CAR-T in the treatment of relapsed refractory acute T-lymphoblastic leukemia/lymphoblastic lymphoma.
Acute T-lymphoblastic leukemia/lymphoblastic lymphoma (T-ALL/LBL) is a highly heterogeneous hematological malignancy usually associated with genetic alterations/mutations in transcription factors that are major regulators of hematopoietic stem/progenitor cell homeostasis and T cell development. 70% of patients develop mass with myeloid invasion and other leukemia symptoms. CD1a, a transfer membrane glycoprotein, is a cell surface antigen present on cortical T-ALL cells. It is present in 40% of T-ALL cases. Specific expression of this antigen has also been observed in developing cortical thymus cells. It was also slightly expressed in langerhans cells, digital dendritic cells, B lymphocytes and gastrointestinal epithelial cells. CD1a4 was not expressed in CD34+ progenitor cells or T cells during ontogeny. This property of CD1a makes it a suitable target antigen whose targeting minimizes the possibility of non-tumor toxicity. This study intends to treat r/r CD1a+T-ALL/LBL with CD1a CAR-T to observe its safety and efficacy.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
20
Peripheral blood mononuclear cells were isolated, amplified and cultured in vitro, pretreated with FC regimen, and Anti-CD1a CAR-T cells were transfused.
The Affiliated Hospital of Xuzhou Medical University
Xuzhou, Jiangsu, China
RECRUITINGObjective response rate
CR+PR
Time frame: From 2 weeks to 1 year.
Progression-free survival
The time between treatment and observation of disease progression or death from any cause.
Time frame: From 2 weeks to 1 year.
overall survival
The time interval between patient infusion of CAR-T and death from any cause or the end of follow-up.
Time frame: From 2 weeks to 1 year.
Event-free survival
The time from the start of CAR-T infusion to the occurrence of any event.
Time frame: From 2 weeks to 1 year.
Characterization of the level of CAR T cell expansion in subjects over time
Characterization of the level of CAR T cell expansion in subjects over time.
Time frame: From 2 weeks to 1 year.
Duration of CAR T cells in subjects
Duration of CAR T cells in subjects
Time frame: From 2 weeks to 1 year.
Characteristics of lymphocyte reduction in subjects
Characteristics of lymphocyte reduction in subjects
Time frame: From 2 weeks to 1 year.
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.