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Harrison CJ Moorman AV Broadfield ZJ Cheung KL Harris RL Reza Jalali G Robinson HM Barber KE Richards SM Mitchell CD Eden TO Hann IM Hill FG Kinsey SE Gibson BE Lilleyman J Vora A Goldstone AH Franklin IM Durrant J Martineau M;Childhood Adult Leukaemia Working Parties 《British journal of haematology》2004,125(5):552-559
This study of children and adults with acute lymphoblastic leukaemia (ALL) is the largest series of patients with hypodiploidy (<46 chromosomes) yet reported. The incidence of 5% was independent of age. Patients were subdivided by the number of chromosomes; near-haploidy (23-29 chromosomes), low hypodiploidy (33-39 chromosomes) and high hypodiploidy (42-45 chromosomes). The near-haploid and low hypodiploid groups were characterized by their chromosomal gains and a doubled hyperdiploid population. Structural abnormalities were more frequent in the low hypodiploid group. Near-haploidy was restricted to children of median age 7 years (range 2-15) whereas low hypodiploidy occurred in an older group of median age 15 years (range 9-54). Patients with 42-45 chromosomes were characterized by complex karyotypes involving chromosomes 7, 9 and 12. The features shared by the few patients with 42-44 chromosomes and the large number with 45 justified their inclusion in the same group. Survival analysis showed a poor outcome for the near-haploid and low hypodiploid groups compared to those with 42-45 chromosomes. Thus cytogenetics, or at least a clear definition of the modal chromosome number, is essential at diagnosis in order to stratify patients with hypodiploidy into the appropriate risk group for treatment. 相似文献
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Combination of intensive chemotherapy and imatinib can rapidly induce high-quality complete remission for a majority of patients with newly diagnosed BCR-ABL-positive acute lymphoblastic leukemia 总被引:4,自引:0,他引:4 下载免费PDF全文
Towatari M Yanada M Usui N Takeuchi J Sugiura I Takeuchi M Yagasaki F Kawai Y Miyawaki S Ohtake S Jinnai I Matsuo K Naoe T Ohno R;Japan Adult Leukemia Study Group 《Blood》2004,104(12):3507-3512
The outcome for adult patients with BCR-ABLpositive acute lymphoblastic leukemia (ALL) remains dismal and long-term survival can hardly be achieved except by allogeneic hematopoietic stem cell transplantation (HSCT). The Japan Adult Leukemia Study Group (JALSG) has recently started a phase 2 trial with intensive chemotherapy and imatinib for newly diagnosed BCR-ABpositive ALL patients, and we present here the interim results for the first 24 patients. All patients except one case of early death (96%) attained complete remission (CR) after a single course of remission induction therapy. Polymerase chain reaction (PCR) negativity was achieved in 28% of the patients on day 28, in 50% on day 63, and in up to 78% during the follow-up period. The toxicity profile was almost similar to that with chemotherapy alone. As a result, 15 patients (63%) could receive an allogeneic HSC transplant during their first CR. Although the number of patients is small and the observation period is too short, the combination therapy is very promising and produces high-quality CR for most newly diagnosed patients with BCR-ABLpositive ALL. This is especially useful because it provides the patients with a better chance to receive an allogeneic HSC transplant. 相似文献