Confirmation and improvement of Sokal's prognostic classification of Ph+ chronic myeloid leukemia: The value of early evaluation of the course of the disease

1991 ◽  
Vol 63 (6) ◽  
pp. 307-314 ◽  
Author(s):  
2011 ◽  
Vol 07 (02) ◽  
pp. 138
Author(s):  
Francis J Giles ◽  

Targeted inhibition of the oncogenic function of the constitutively active BCR-ABL kinase with tyrosine kinase inhibitors is a highly effective and now standard therapeutic approach for patients with chronic myeloid leukemia. The early evaluation of response during the course of therapy is important for determining whether therapy is progressing according to expectations that correlate with optimal outcome. Therefore, frequent disease monitoring to assess treatment and to detect failure or suboptimal response is recommended. Current monitoring strategies incorporate hematological, cytogenetic, and molecular analysis, the latter involving the quantification of BCR-ABL transcripts in the blood. Molecular monitoring has been shown to be the most sensitive method available and has shown prognostic impact with regard to progression-free survival, but the use of diverse methods to quantify BCR-ABL levels has made it difficult to compare results between (and sometimes within) laboratories, with resulting implications for patient care. This article discusses the current approaches and challenges to BCR-ABL monitoring, summarizes some of the international efforts under way to standardize BCR-ABL analysis, and suggests potential alternative approaches to facilitating reproducible BCR-ABL monitoring results, such as a standardized US Food and Drug Administration-approved BCR-ABL testing kit.


1999 ◽  
Vol 22 (4) ◽  
pp. 475-479 ◽  
Author(s):  
Rosely de V. Meissner ◽  
Dimas T. Covas ◽  
Paula M.B. Dias ◽  
Fani Job ◽  
Márcia Leite ◽  
...  

The nature of BCR/ABL hybrid mRNA was analyzed by RT-PCR in cells from 33 patients (22 males, 11 females) with chronic myeloid leukemia (CML). b3a2 mRNA was found in 14 cases, whereas 13 patients had b2a2 mRNA and six had both kinds of mRNA, with a predominance of the b3a2 type. The type of mRNA present showed no significant correlation with age, hemoglobin level, number of leukocytes and platelets, percentage of blasts or basophils or the presence of splenomegaly at diagnosis. There was also no correlation with sex or duration of the chronic phase. When these results were combined with those reported by other groups, a significant association (P = 0.029) was observed for mRNA type vs. sex, with a predominance of men in the groups expressing b2a2 (2.68:1) and b3a2 (1.33:1). We conclude that the classification of patients according to mRNA type does not homogenize the clinical and hematological data within groups, where variance is large, nor does it allow a differentiation between groups.


2009 ◽  
pp. 1-2
Author(s):  
Fabio Stagno ◽  
Paolo Vigneri ◽  
Vittorio Del Fabro ◽  
Stefania Stella ◽  
Salvatore Berretta ◽  
...  

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