格列卫联合清髓性异基因造血干细胞移植治疗慢性髓性白血病

目的:探讨格列卫联合清髓性异基因造血干细胞移植在治疗慢性髓性白血病(CML)中的作用。方法:9例CML患者(5例CP,2例为AP,2例为BP),男性,在清髓性异基因造血干细胞移植前、后口服格列卫(300~600 mg/d)治疗,移植预处理方案为BuCy2:Bu 16 mg/kg,口服(6例)或12.8 mg/kg,静脉滴注(3例)加CTX 120 mg/kg。供受者HLA配型完全相合,其中亲缘移植7例,无关供者移植2例。以霉酚酸酯联合环孢菌素A和短程MTX预防aGVHD。移植物有核细胞数5.3(3.7~8.7)×108/kg,CD34 细胞数4.8(2.8~8.5)×106/kg,粒-巨噬细胞集落形成的单位数2.8(1.9~5.3)×105/kg。结果:9例CML患者在移植前,经格列卫治疗后获完全血液学缓解(HCR)。移植后中性粒细胞>0.5×109/L中位时间12(8~26)天,血小板计数>20×109/L中位时间为20(8~25)天。移植后并发/度aGVHD3例,cGVHD4例,无早期死亡。移植后30天9例患者均获完全细胞遗传学缓解(CCR),STR检测供髓完全植入。中位随访31(7~34)月,1例治疗前CML急变患者移植后4月因复发死亡,其余病患均获完全分子学缓解(CMR),总体无病生存率88.9%。结论:清髓性异基因造血干细胞移植前、后联合格列卫治疗CML,是一种安全有效的治疗方法,值得临床进一步推广。

Clinical observation of Gleevec combined with myeloablative allogeneic stem cells transplantation in treatment of chronic myeloid leukemia

OBJECTIVE: To observe the efficacy of Gleevec combined with myeloablative allogeneic stem cells transplantation(Allo-SCT) for the treatment of chronic myeloid leukemia (CML). METHODS: Nine patients with CML were treated with Gleevec before and after Allo-SCT, with 5 in the chronic phase (CP), 2 in the accelerated phase (AP) and 2 in the blast-crisis phase (BP). The donors were HLA matched identical siblings (n=7) and matched unrelated donors (n=2). The conditioning regimen is BuCy2. Mycophenolate mofetil combined with cyclosporin A and methotrexate was used for the prevention of acute GVHD. RESULTS: All patients achieved completed hemopoietic remission (HCR) treated with pre-transplant Gleevec. The median period to gain absolute neutrophil count>0.5x10(9)/L was 12 d (8 approximately 26 d) and that for platelet count>20x10(9)/L was 20 d (8 approximately 25 d). Three cases suffered from acute GVHD and 4 from chronic GVHD. All patients achieved completed engraftment and completed molecular remission. The rate of disease free survival was 88.9% after a median follow-up of 31 m (range 7 approximately 34 m). CONCLUSION: The treatment of CML consisting of myeloablative Allo-SCT combined with Gleevec before and after transplantation is an effective and safe method for CML.