Table 3 Efficacy evaluation according to tumor type*

From: Claudin18.2-specific CAR T cells in gastrointestinal cancers: phase 1 trial interim results

Variable

Gastric n = 28

Other n = 9

All n = 37

Best overall response

 CR, n (%)

0

0

0

 PR, n (%)

16 (57.1)

2 (22.2)

18 (48.6)

 SD, n (%)

5 (17.9)

4 (44.4)

9 (24.3)

 PD, n (%)

7 (25.0)

3 (33.3)

10 (27.0)

 ORR, n (%) [95% CI]

16 (57.1) [37.2, 75.5]

2 (22.2) [2.8, 60.0]

18 (48.6) [31.9, 65.6]

DCR, n (%) [95% CI]

21 (75.0) [55.1, 89.3]

6 (66.7) [29.9, 92.5]

27 (73.0) [55.9, 86.2]

mPFS (months) [95% CI]

4.2 [3.7, 9.2]

2.6 [1.8, 3.5]

3.7 [2.6, 5.4]

6-month OS rate (%) [95% CI]

81.2 [60.3, 91.8]

77.8 [36.5, 93.9]

80.1 [62.5, 90.0]

6-month DOR rate (%) [95% CI]

53.3 [20.7, 77.8]

NA

44.8 [17.3, 69.3]

  1. CR, complete response; NA, not applicable.
  2. *Tumor response was confirmed based on investigator assessment according to RECIST version 1.1.