Table 4.

Response to KTE-X19

Response category	Dose level			Total (N = 45)
	2 × 106 (n = 6)	1 × 106 (n = 23)	0.5 × 106 (n = 16)
CR	4 (67)	19 (83)	8 (50)	31 (69)
CR	3 (50)	15 (65)	6 (38)	24 (53)
CRi	1 (17)	4 (17)	2 (13)	7 (16)
BFBM	0	1 (4)	1 (6)	2 (4)
Partial remission	0	1 (4)*	0	1 (2)
No response	1 (17)	2 (9)	6 (38)	9 (20)
Unknown or not evaluable	1 (17)†	0	1 (6)‡	2 (4)

Data are presented as n (%).

^*Patient had extramedullary disease at response assessment. Of the 3 other patients with extramedullary disease, 2 achieved a CR, and 1 had stable disease (no response); all had extramedullary disease present at response assessment.

^†Patient died on day 6 as a result of multiorgan failure secondary to CRS.

^‡Patient died on day 7 as a result of cerebrovascular accident (stroke) in the context of CRS and neurologic events.