Skip to main content

Table 2 Response rates by FLT3i exposure sequence

From: Outcomes with sequential FLT3-inhibitor-based therapies in patients with AML

Therapy by cohort

N

First FLT3i

Second FLT3i

Third/fourth FLT3i

P value*

Number of responders/total (CRc rate)

Cohort 1

96

43/56 (77%)

10/32 (31%)

2/8 (25%)

 Single-agent FLT3i

22

0/1 (0%)

2/15 (13%)

2/6 (33%)

 LIT + FLT3i

32

17/22 (77%)

4/9 (44%)

0/1 (0%)

 CCT + FLT3i

42

26/33 (79%)

4/8 (50%)

0/1 (0%)

Cohort 2

301

82/183 (45%)

19/89 (21%)

3/29 (10%)

< 0.001

 Single-agent FLT3i

145

28/82 (34%)

7/47 (14%)

1/16 (6%)

0.010

 LIT + FLT3i

113

40/74 (54%)

10/32 (31%)

2/7 (28%)

0.061

 CCT + FLT3i

43

14/27 (52%)

2/10 (20%)

0/6 (0%)

0.026

  1. FLT3i, FLT3 inhibitor; CRc, composite CR rate; N, number; LIT, low-intensity chemotherapy; CCT, intensive cytotoxic chemotherapy
  2. *P values added for cohort 2 patients only, as numbers of patients may be too small to make meaningful comparisons in cohort 1