Table 1 Baseline characteristics and response in patients salvaged with venetoclax.

From: Salvage use of venetoclax-based therapy for relapsed AML post allogeneic hematopoietic cell transplantation

Baseline characteristic

Total n = 29

Responders

Non responders

P value (Fisher’s exact test)

Age

58 years (20–72 years)

58 years (20–64 years)

57 years (25–72)

0.08

Sex

   

0.2

Male

14 (48%)

7 (50%)

7 (50%)

 

Female

15 (52%)

4 (27%)

11 (73%)

 

AML type

   

0.8

De novo

11 (38%)

5 (45%)

6 (55%)

 

Secondary*

5 (17%)

2 (40%)

3 (60%)

 

t-AML

3 (10%)

1 (33%)

2 (67%)

 

High-risk MDS

10 (35%)

3 (30%)

7 (70%)

 

Cytogenetic risk group

   

0.7

Favorable (inv 16)

1 (3%)

0

1 (100%)

 

Intermediate

10 (35%)

4 (36%)

7 (64%)

 

Adverse

18 (62%)

7 (39%)

11 (61%)

 

TP53 deletion or mutation

   

0.7

Yes

12 (41%)

4 (33%)

8 (67%)

 

No

17 (59%)

7 (41%)

10 (59%)

 

Median no. of therapies prior to transplant

2 (range 1–4)

2 (range 1–4)

2 (range 0–3)

 

AML/MDS status at transplant

   

0.1

CR1

20 (69%)

8 (47%)

9 (53%)

 

CR2

5 (17%)

3 (60%)

2 (40%)

 

Persistent disease or MRD positive

3 (11%)

0

3 (100%)

 

Upfront transplant

1 (3%)

0

1 (100%)

 

Time to relapse post transplant

9 months (range 2–37 months)

15 (range 2–37 months)

7.5 (range 2–35)

0.4

Time to venetoclax initiation from transplant

13 months (range 2–48)

   

AML status at venetoclax initiation

   

0.8

Relapse 1 post transplant

21 (72%)

8 (38%)

13 (62%)

 

Relapse 2 post transplant

4 (14%)

2 (50%)

2 (50%)

 

Relapse 3 and/or refractory disease

4 (14%)

1 (25%)

3 (75%)

 

Median no. of venetoclax cycles

2 (range 1–8)

   

Prior HMA exposure

   

0.4

Yes

12 (41%)

3 (25%)

9 (75%)

 

No

17 (59%)

8 (47%)

9 (53%)

 
  1. *AML secondary to underlying hematological disorder; t-AML therapy-related AML, CR complete remission, MRD minimal residual disease by flow cytometry.