Table 1.

Pretreatment Characteristics of 36 Patients With Relapsed/Refractory Acute Lymphoblastic Leukemia

Characteristic	No. of Patients (%)
Age, y
≤40	25 (69)
41-59	8 (22)
≥60	3 (8)
Median [range], y	32 [19-62]
Women	12 (33)
ECOG performance status
0-1	31 (86)
2-3	5 (14)
Extramedullary disease, yes	3 (8)
Leukocyte count, ×109/L
≤25	32 (89)
25-49.9	3 (8)
≥50	1 (3)
Circulating blasts, yes	23 (64)
Hemoglobin <10 g/dL	14 (39)
Platelet count <100 ×109/L	24 (67)
First CR duration, mo
0	7 (19)
1-5.9	6 (17)
6-11.9	8 (22)
≥12	15 (42)
Salvage attempt
First	14 (39)
Second	14 (39)
Third or greater	8 (22)
Previous allogenic SCT, yes	6 (17)

ECOG, Eastern Cooperative Oncology Group; CR, complete response; SCT, stem cell transplantation.