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Absolute lymphocyte count at day 28 independently predicts event-free and overall survival in adults with newly diagnosed acute lymphoblastic leukemia
Absolute lymphocyte count at day 28 independently predicts event-free and overall survival in adults with newly diagnosed acute lymphoblastic leukemia AMERICAN JOURNAL OF HEMATOLOGY Sun, D., Elson, P., Liedtke, M., Medeiros, B. C., Earl, M., Alizadeh, A., Bates, J., Sekeres, M. A., Coutre, S., Kalaycio, M., Sobecks, R., Copelan, E., Advani, A. S. 2012; 87 (10): 957-960Abstract
We investigated the prognostic impact of absolute lymphocyte count (ALC) following induction chemotherapy in newly diagnosed adult acute lymphoblastic leukemia (ALL). Patients with ALC =350 cells/µL at day 28 had a median overall survival (OS) of 47.4 months when compared with 17.6 months for those with an ALC <350 cells/µL (HR = 1.98, P = 0.007). Among patients who achieved a complete remission, median event-free survival (EFS) for those with ALC =350 cells/µL on day 28 was 42.1 months when compared with 13.9 months in those with ALC <350 cells/µL (HR = 2.08, P = 0.006). In multivariable analysis, the ALC on day 28 (<350 cells/µL vs. =350 cells/µL, P = .0004 for OS and EFS) along with WBC at diagnosis (=6.0 or >30.0 K/µL vs. >6.0-30.0 K/µL, P = 0.002 for OS and EFS) and cytogenetics (abnormal vs. normal, P = 0.002 for OS and P = 0.02 for EFS) were independent prognostic factors of both OS and EFS. Combining these three factors segregates patients in three well-defined risk groups. These data suggest that ALC can be used in combination with other prognostic features to better predict outcome and that targeting the immune system to improve ALC may be a worthwhile strategy in ALL.
View details for DOI 10.1002/ajh.23279
View details for Web of Science ID 000309065700081
View details for PubMedID 22729847