Early use of allogeneic hematopoietic stem cell transplantation for infants with MLL gene-rearrangement-positive acute lymphoblastic leukemia

被引:44
作者
Koh, K. [1 ]
Tomizawa, D. [2 ]
Saito, A. Moriya [3 ]
Watanabe, T. [4 ]
Miyamura, T. [5 ]
Hirayama, M. [6 ]
Takahashi, Y. [7 ]
Ogawa, A. [8 ]
Kato, K. [9 ]
Sugita, K. [10 ]
Sato, T. [11 ]
Deguchi, T.
Hayashi, Y. [12 ]
Takita, J. [13 ]
Takeshita, Y. [14 ]
Tsurusawa, M. [15 ]
Horibe, K. [3 ]
Mizutani, S. [2 ]
Ishii, E. [16 ]
机构
[1] Saitama Childrens Med Ctr, Dept Hematol Oncol, Saitama, Japan
[2] Tokyo Med & Dent Univ, Dept Pediat, Tokyo 1138519, Japan
[3] Nagoya Med Ctr, Natl Hosp Org, Clin Res Ctr, Nagoya, Aichi, Japan
[4] Aichi Gakuin Univ, Fac Psychol & Phys Sci, Dept Nutr Sci, Nagoya, Aichi, Japan
[5] Osaka Univ, Dept Pediat, Osaka, Japan
[6] Mie Univ, Grad Sch Med, Dept Pediat, Tsu, Mie, Japan
[7] Aomori Prefectural Cent Hosp, Dept Pediat, Aomori, Japan
[8] Niigata Canc Ctr Hosp, Dept Pediat, Niigata, Japan
[9] Japanese Red Cross Nagoya First Hosp, Childrens Med Ctr, Dept Hematol & Oncol, Nagoya, Aichi, Japan
[10] Univ Yamanashi, Dept Pediat, Kofu, Yamanashi, Japan
[11] Chiba Univ Hosp, Dept Control & Treatment Infect Dis, Chiba, Japan
[12] Gunma Childrens Med Ctr, Dept Hematol Oncol, Gunma, Japan
[13] Univ Tokyo, Dept Pediat, Tokyo, Japan
[14] Nara Med Univ, Dept Pediat, Nara, Japan
[15] Ama Municipal Hosp, Dept Pediat, Ama, Aichi, Japan
[16] Ehime Univ, Grad Sch Med, Dept Pediat, Matsuyama, Ehime 790, Japan
关键词
CHILDREN; THERAPY; RISK; BUSULFAN;
D O I
10.1038/leu.2014.172
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Sixty-two infants with MLL gene-rearrangement-positive acute lymphoblastic leukemia (MLL-r ALL) were treated with the MLL03 protocol of the Japanese Pediatric Leukemia/Lymphoma Study Group: short-course intensive chemotherapy followed by early allogeneic hematopoietic stem cell transplantation (HSCT) within 4 months of the initial induction. The 4-year event-free survival and overall survival rates were 43.2% (95% confidence interval (CI) = 30.7-55.1%) and 67.2% (53.8-77.4%), respectively. A univariate analysis showed younger age (<90 days at diagnosis), central nervous system disease and poor response to initial prednisolone therapy significantly associated with poor prognosis (P<0.05). In a multivariate analysis, younger age at diagnosis tended to be associated with poor outcome (hazard ratio = 1.969; 95% CI = 0.903-4.291; P = 0.088). Although the strategy of early use of HSCT effectively prevented early relapse and was feasible for infants with MLL-r ALL, the fact that substantial number of patients still relapsed even though transplanted in their first remission indicates the limited efficacy of allogeneic HSCT for infants with MLL-r ALL. Considering the risk of severe late effects, indications for HSCT should be restricted to specific subgroups with poor risk factors. An alternative approach incorporating molecular-targeted drugs should be established.
引用
收藏
页码:290 / 296
页数:7
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