氟达拉滨和非氟达拉滨预处理方案在非清髓异基因造血干细胞移植中的比较

目的　探讨氟达拉滨 (Flud)和非Flud预处理方案在非清髓造血干细胞移植 (NAST)中的作用和疗效。方法　用NAST治疗 36例HLA相合的血液病患者。预处理方案分为两组 :非Flud组 :阿糖胞苷、环磷酰胺、CD3 单克隆抗体 抗淋巴细胞球蛋白、环孢菌素A和霉酚酸酯 ;Flud组 :在非Flud组基础上加用Flud。结果　Flud组 1 6例患者中 1 4例 (87.5 % )形成供者细胞完全植入 (FDC) ;非Flud组2 0例患者中 1 6例 (80 .0 % )形成FDC ,Flud组早期FDC率明显高于非Flud组 (P <0 .0 1 ) ,但两组最终FDC率和移植排斥发生率无统计学差异 (P >0 .0 5)。Flud组中 6例 (37.5 % )发生Ⅰ～Ⅱ度急性移植物抗宿主病 (GVHD) ;非Flud组 4例 (2 0 .0 % )发生Ⅰ～Ⅳ度急性GVHD ,Flud组急性GVHD的发生率高于非Flud组 ,但无统计学差异 (P >0 .0 5)。Flud组 2例 (1 2 .5 % )、非Flud组 6例 (30 .0 % )发生慢性GVHD ,两组的慢性GVHD发生率无统计学差异 (P >0 .0 5)。Flud组 3例 (1 8.7% )、非Flud组 3例 (1 5 .0 % )发生慢性间质性肺炎 (IP) ,两组IP发生率无统计学差异 (P >0 .0 5)。两组患者的中性粒细胞、血小板的最低值和恢复时间均无显著性差异 (P >0 .0 5)。Flud组 1 6例患者中仅 1例急性髓系白血病M2 第 2次完全缓解 (CR2 )患者在移植后 4个

Comparison of conditioning regimens containing or no fludarabine in nonmyeloablative allogeneic peripheral blood stem cell transplantation

OBJECTIVE: To investigate the therapeutic effect of conditioning regimen containing fludarabine in nonmyeloablative allogeneic peripheral blood stem cells transplantation (NAST) in the treatment of hematological diseases. METHODS: Thirty-six patients with acute leukaemia, severe aplastic anaemia, MDS and myelofibrosis received NAST from HLA matched donors' G-CSF mobilized peripheral blood stem cells after nonmyeloabalative conditioning. The conditioning regimen consisted of CTX, Ara-C, CsA, anti-CD(3) antibody or anti-thymocyte globulin and with or without fludarabine. GVHD prophylaxis was performed with cyclosporine combined methotrexate (no MMF group, n = 5) or mycophenolate mofetil (MMF group, n = 31). RESULTS: All of the treatment was generally well tolerated and all cases achieved engrafted of the donor cells. In fludarabine group, engraftment was observed in 87.5% (14/16) patients with complete donor chimerism, graft failure was 12.5% (2/16) and in no fludarabine group, 80% (16/20) and 20% (4/20), respectively. The incidence of acute GVHD (grade I - IV) was 27.8% (10/36) and chronic GVHD 22.2% (8/36). In fludarabine group, grade I - II aGVHD was 37.5%, in no fludarabine group, 20%. cGVHD was 12.5% in fludarabine group and in no fludarabine group 30%, respectively. Interstitial pneumonia (IP) was observed in 16.7% (6/36) of the patients, being 18.7% (3/16) and 15% (3/20) in fludarabine and no fludarabine group, respectively. Overall survival rate was 80.5% (29/36) with a median follow-up of 13 months. CONCLUSIONS: There was no significant difference between fludarabine based (n = 16) and non-fludarabine based conditioning regimen (n = 20) in NAST for the treatment of hematological diseases, regarding for incidence of GVHD, IP, engraftment and survival.