目的探讨采用伊马替尼(IM)联合化疗后第1次完全缓解期(CR,)行异基因造血干细胞移植(allo—SCT)及IM维持治疗成人Ph阳性急性淋巴细胞白血病(Ph^+ -ALL)的临床疗效及相关预后因素。方法2006年3月至2010年12月在我院淋巴肿瘤中心CR,期完成allo-SCT治疗的16例成人Ph^+-ALL患者纳入研究。所有患者均以IM联合标准VDCP±L(长春新碱+柔红霉素+环磷酰胺+泼尼松±左旋门冬酰胺酶)方案诱导治疗,缓解后则联合改良HyperCVAD/MA方案强化巩固治疗,并于CR。期行allo-SCT;部分患者移植后给予IM维持治疗。随访至2011年3月31日,分析患者临床基本特征、总生存(OS)率、无病生存(DFS)率、累积复发(RI)率及非复发死亡(NRM)率,并探讨与生存相关的预后因素。结果16例患者采用IM联合化疗在移植前均维持血液学缓解,其中10例达分子生物学缓解。移植后所有患者均成功植入。中位随访27.1(7.4~65.8)个月,14例患者存活,其中2例患者移植后复发经IM挽救均存活,2例非复发死亡。3年预期OS及DFS率分别为(85.9±9.3)%和(83.9±10.5)%,3年RI率及NRM率分别为(16.1±10.5)%和(14.1±9.3)%。生存分析未显示影响移植疗效的预后因素。结论IM联合化疗及Hyper·CVAD/MA强化治疗可显著提高Ph^+-ALL患者的缓解率及缓解质量,使患者在CR1期行allo—SCT的可行性增高,allo—SCT前、后联合IM能减少复发,提高长期OS及DFS率,是治疗成人Ph^+- ALL的有效手段。
Objective To explore the efficacy of imatinib (IM)-based chemotherapy followed by allogeneic hematopoietic stem cell transplantation (allo-SCT) in first complete remission( CR1 ) for adult Ph+ acute lymphoblastic leukemia [ Ph^+ -ALL]. Methods From March 2006 to December 2010, 16 adult Ph^+- ALL were enrolled in the study. All patients received IM combined with standard VDCP ± L as induction therapy then intensive consolidation with modified Hyper-CVAD/MA regimen plus IM, and followed by allo-SCT in CR1. Some of them received IM maintenance therapy after allo-SCT. With the follow up to March 31, 2011, the clinical parameters, overall survival (OS), disease free survival (DFS), relapse incidence (RI), non-relapse mortality (NRM) and prognostic factors were analyzed. Results All 16 patients achieved morphological complete remission (CR) , and 10 of them achieved molecular CR. After transplantation, all patients obtained successful engraftments. With a median follow-up of 27.1 (7.4 - 65.8) months, 14 patients were alive, 2 died from NRM, and 2 relapsed. The estimated OS and DFS at 3 year were (85.9 ± 9.3) % and (83.9 ± 10.5 ) %, and cumulative RI and NRM at 3 year were ( 16.1 ± 10.5 ) % and ( 14.1 ± 9.3 ) %, respectively. None prognostic factor was found on analysis. Conclusion IM combined with intensive chemotherapy significantly increased the CR rate and improved the quality of CR. which prepared the feasibilitv of a11o-SCT in CR1. IM therapy pre- and post-allo-SCT would be a promising strategy for adult Ph + -ALL to decrease relapse and facilitates favorable 0S and DFS.