Table 2.

Characteristics of patients who were evaluated as having progression to AML by treatment

Eltrombopag (n =179)Placebo (n =177)OR (95% CI)Nominal P
Total number of patients who progressed to AML (confirmed by central or investigator assessment), n (%)* 33/179 (18) 20/177 (11)   
 Confirmed by both central and investigator assessment 15 (8) 6 (3)   
 Confirmed by central assessment 21 (12) 10 (6) 2.04 (0.90-4.65) .042 
 Confirmed by central assessment only 6 (3) 4 (2)   
 Confirmed by investigator assessment 27 (15) 16 (9) 1.59 (0.81-3.14) .079 
 Confirmed by investigator assessment only 12 (7) 10 (6)   
Proportion who progressed to AML within 60 d of randomization, n (%) 16/33 (48) 1/20 (5)   
Median (range) age of patients who progressed to AML, y 69 (34-87) 67.5 (47-79)   
Patients with baseline BM blast counts >20% who progressed to AML (confirmed by central assessment), n (%) 6/33 (18) 3/20 (15)   
 % BM blasts at baseline in each patient 24, 25, 25, 27, 29, 39 32, 43, 53   
Patients with abnormal karyotype at baseline, n (%) 19/33 (58) 13/20 (65)   
Median (range) time to AML diagnosis, d     
 By central assessment 113 (1-260) 137 (33-387)   
 By investigator assessment 60 (20-307) 178 (33-389)   
Eltrombopag (n =179)Placebo (n =177)OR (95% CI)Nominal P
Total number of patients who progressed to AML (confirmed by central or investigator assessment), n (%)* 33/179 (18) 20/177 (11)   
 Confirmed by both central and investigator assessment 15 (8) 6 (3)   
 Confirmed by central assessment 21 (12) 10 (6) 2.04 (0.90-4.65) .042 
 Confirmed by central assessment only 6 (3) 4 (2)   
 Confirmed by investigator assessment 27 (15) 16 (9) 1.59 (0.81-3.14) .079 
 Confirmed by investigator assessment only 12 (7) 10 (6)   
Proportion who progressed to AML within 60 d of randomization, n (%) 16/33 (48) 1/20 (5)   
Median (range) age of patients who progressed to AML, y 69 (34-87) 67.5 (47-79)   
Patients with baseline BM blast counts >20% who progressed to AML (confirmed by central assessment), n (%) 6/33 (18) 3/20 (15)   
 % BM blasts at baseline in each patient 24, 25, 25, 27, 29, 39 32, 43, 53   
Patients with abnormal karyotype at baseline, n (%) 19/33 (58) 13/20 (65)   
Median (range) time to AML diagnosis, d     
 By central assessment 113 (1-260) 137 (33-387)   
 By investigator assessment 60 (20-307) 178 (33-389)   
*

According to modified 2006 IWG response criteria.

Randomization was based on local BM assessment (<30% blasts); however, upon central confirmation, some patients exceeded 30% blasts.

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