This study was purposed to explore the efficacy and feasibility of reduced-intensity allogeneic hematopoietic stem cell transplantation (allo-HSCT) in the treatment of multiple myeloma (MM). Three patients with MM from January 2011 to January 2012 in General Hospital of Beijing Military Area were treated by reduced-intensity allo-HSCT. All donors are compatriots and affinity HLA identical. Donors were mobilized with granulocyte colony-stimulating factor (G-CSF), the MM patients were given combined transplantation of bone marrow and peripharal blood stem cells. Preconditioning regimen consisted of fludarabine combined with melphalan and anti-human thymocyte globulin, and the classic cyclosporin A (CsA) combined with methotrexate (MTX) was used to prevent graft-versus-host disease (GVHD). The preventive donor peripheral blood stem cell infusion in dose 0.2 × 108/kg monomuclear cells (MNC) was applied after 3 months of transplantation, then the toxicity, GVHD and disease-free survival(DFS) in patients were observed after transplantation. The results showed that 3 patients got hematopoietic reconstitution, the average time of neutrophils ≥0. 5 × 109/L and platelets ≥20 × 109/L was 14. 3 d and 15. 3 d respectively, the detection of implanting efficacy desplayed 100% complete donor hematopoiesis. Follow-up to January 2013, the median follow-up time was 13 months (12 to 15 months), As a result, none of the patients got GVHD, infection and other serious complications, all patients are still in complete remission(CR) , the longest DFS time has reached to 15 months. It is concluded that the reduced-intensity allogeneic hematopoietic stem cell transplantation is the effective method for MM, this method has the high safety and efficacy, as well as high complete remission rate in early transplantation, the MM patients may get a long-term survival. This method can be used as a key technology in clinic for treating MM.%本研究探讨减低强度预处理异基因造血干细胞移植(allo-HSCT)治疗多发性骨髓瘤(MM)的疗效和安全性.采用减低强度预处理的allo-HSCT治疗北京军区总医院2011年1月至2012年1月收治的3例多发性骨髓瘤患者,供者全部为HLA全相合亲缘性同胞,供者接受粒细胞集落刺激因子(G-CSF)动员,采用骨髓加外周血干细胞联合移植,预处理方案为降低预处理强度的氟达拉滨联合马法兰及抗人胸腺细胞球蛋白等,移植物抗宿主病(GVHD)预防采用经典的环孢菌素A(CsA)联合氨甲蝶呤(MTX),移植后3个月进行预防性供者外周血干细胞输注,输注单个核细胞数(MNC)为0.2×108/kg,移植后观察患者毒副反应、GVHD和无病生存等情况.结果显示:3例患者均获造血重建,中性粒细胞数≥0.5×109/L及血小板数≥20×109/L的平均时间分别14.3 d及15.3 d,植入证据检测为100％完全供者造血,随访至2013年1月,中位随访时间13个月(12-15个月),无1例合并GVHD、感染等严重并发症,全部患者目前仍处于完全缓解状态,最长无病生存时间已达15个月.结论:减低强度预处理的allo-HSCT对MM是一个有效方法,该方案安全系数大、疗效确切,早期进行移植完全缓解率高,患者有可能长期生存.该方案可作为MM治疗的关键技术在临床广泛开展.
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