Table 1 Baseline characteristics.

From: IL-6 knockdown anti-CD19 CAR-T cells (ssCART-19) for patients with relapsed or refractory acute lymphoblastic leukemia: phase 1 trial

Characteristic n (%) / Median (range)

Patients (N = 17)

Median age, years

39 (20–51)

Sex

 Male

9 (52.9)

 Female

8 (47.1)

Median time since diagnosis, months

17 (4–28)

ECOG performance status before ssCART-19 infusion

 0

5 (29.4)

 1

12 (70.6)

Philadelphia positive

 Yes

3 (17.6)

 No

14 (82.4)

Previous TKI therapy

 Yes

4 (23.5)

 No

13 (76.5)

Previous stem cell transplantation

 Auto-HSCT

0 (0.0)

 Allo-HSCT

2 (11.8)

 No

15 (88.2)

Disease status

 Refractory

3 (17.6)

 Relapsed

14 (82.4)

Number of relapses

 0

3 (17.6)

 1

10 (58.9)

 2

2 (11.8)

 >2

2 (11.8)

Previous bridging therapy

 Yes

14 (82.4)

 No

3 (17.6)

High-risk cytogenetic features

 Yes

8 (47.1)

 No

9 (52.9)

Bone marrow leukemia blasts at screening

 ≤5%

0 (0.0)

 >5%, ≤25%

8 (47.1)

 >25%, ≤50%

1 (5.9)

 >50%, ≤75%

4 (23.5)

 >75%

4 (23.5)

Extramedullary disease at screening

 Yes

1 (5.9)

 No

16 (94.1)

CNSL disease at screening

 Yes

1 (5.9)

 No

16 (94.1)