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Table 1 Patient characteristics and clinical response

From: A novel and efficient CD22 CAR-T therapy induced a robust antitumor effect in relapsed/refractory leukemia patients when combined with CD19 CAR-T treatment as a sequential therapy

Patient number

Age/ sex

Leukemia type and genetic abnormalities

BM blasts burden

Prior lines of treatment

Prior immunotherapy

Dose of CAR-T cells: CD22 CAR#/CD19 CAR#

Clinical response

1

26/M

Ph-like ALL (BCR-JAK2 fusion, IKZF1 deletion)

64.93%

4

Blinatumomab

1/1

CR (MRD−)

2

18/M

Ph−_ ALL (TP53 loss, NRAS mutation)

0.33% (MRD+)

4

CD19 CAR-T

1/1

CR (MRD−)

3

30/M

Ph−_ALL

22.54%

4

Blinatumomab

1/1

CR (MRD−)

4

40/M

Ph+-ALL (V299L mutaion)

0.19% (MRD+)

2

No

1/1

CR (MRD−)

  1. M male, Ph Philadelphia chromosome, Bone marrow blast burden was detected by flow cytometry, # × 106 cells/kg of body weight