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Abstract：
Objective: This study was designed to evaluate the efficacy of haploidentical hematopoietic stem cell transplantation (haplo-HSCT) for adult-onset primary hemophagocytic lymphohistiocytosis (HLH) . Method: A retrospective study was carried out to analyze the clinical data of 15 adult patients with primary HLH who received haplo-HSCT from January 2013 to October 2019 in Beijing Friendship Hospital, Capital Medical University, Beijing, China. Results: Among the 15 patients included in the study, ten were males and five were females, with a median age of 21 years old (18-52) . Eight of the patients had familial hemophagocytic lymphohistiocytosis type 2 (FHL-2) , four had FHL-3, one had Griscelli syndrome type 2 (GS-2) , one had X-linked lymphoproliferative disease type 1 (XLP-1) , and the other had XLP-2. The median time from HLH diagnosis to transplantation was 7 months (2-46 months) . Seven patients were treated with Bu/Cy condition regimen prior to transplantation. Meanwhile, the other eight cases were treated with TBI/Cy. The median concentration of mononuclear cell (MNC) infusion was 12.6 (9.2-20.3) ×10(8)/kg and CD34(+) cells was 4.91 (2.51-8.37) ×10(6)/kg. The median time of leukocyte engraftment was on day 13 following transplantation (10-23 days) , and the platelet engraftment was on day 12 (9-36) . Graft failure (GF) finally occurred in two patients (one primary GF and one secondary GF) . The cumulative incidence of acute graft-versus-host-disease (GVHD) grades 2 to 4 was 71.4% (10/14) and chronic GVHD was 30.8% (4/13) , respectively. The five-year overall survival (OS) for all 15 cases of primary HLH was 65.5% (95% CI, 34.9%-73.3%) and the transplant-related mortality (TRM) was 26.7% (4/15) . The five-year OS was 87.5% (95% CI, 38.7%-66.3%) in eight patients who received haplo-HSCT subsequent to initial therapy and 42.9% (95% CI, 8.5%-65.2%) in patients seven patients who needed salvage therapy prior to haplo-HSCT (χ(2)=2.387, P=0.122) . The five-year OS was 85.7% (95% CI, 50.4%-89.8%) in eight patients who achieved complete response before haplo-HSCT and 42.9% (95% CI, 6.4%-53.0%) in seven patients with partial response (χ(2)=3.185, P=0.074) . Conclusion: The results indicated that haplo-HSCT is a promising method for the treatment of primary HLH in adults.
目的： 探讨单倍型造血干细胞移植（haplo-HSCT）治疗成人原发性噬血细胞综合征（HLH）的疗效。 方法： 对2013年1月至2019年10月期间于首都医科大学附属北京友谊医院接受haplo-HSCT的15例成人原发性HLH患者进行回顾性分析。 结果： 全部15例患者中男10例、女5例，中位年龄21（18~52）岁。家族性噬血细胞综合征2型（FHL-2）8例，FHL-3 4例，Griscelli综合征2（GS-2）、X连锁淋巴组织增生综合征1型（XLP-1）、XLP-2各1例。确诊HLH至接受haplo-HSCT的中位时间为7（2~46）个月。所有患者移植前均接受HLH-94、HLH-2004或DEP方案诱导化疗，8例获得完全应答（CR），7例获得部分应答（PR）。移植预处理：Bu/Cy方案7例，TBI/Cy方案8例。输注单个核细胞12.6（9.2~20.3）×10(8)/kg，CD34(+)细胞4.91（2.51~8.37）×10(6)/kg。粒细胞植活中位时间为13（10~23）d，血小板植活中位时间为12（9~36）d。原发、继发性植入失败各1例。Ⅱ~Ⅳ度急性移植物抗宿主病（GVHD）发生率为71.4%（10/14），慢性GVHD发生率为30.8%（4/13）。移植后预期5年总生存（OS）率为65.5%（95%CI 34.9%~73.3%），移植相关死亡率为26.7%（4/15）。一线诱导治疗后立即接受移植（8例）、二线诱导治疗难治/复发患者（7例）的移植后预期5年OS率分别为87.5%（95%CI 38.7%~66.3%）、42.9%（95%CI 8.5%~65.2%）（χ(2)=2.387，P=0.122）。移植前CR（8例）、PR（7例）患者的移植后预期5年OS率分别为85.7%（95%CI 50.4%~89.8%）、42.9%（95%CI 6.4%~53.0%）（χ(2)=3.185，P=0.074）。 结论： haplo-HSCT是成人原发性HLH的有效治疗手段。.
目的： 探讨单倍型造血干细胞移植（haplo-HSCT）治疗成人原发性噬血细胞综合征（HLH）的疗效。 方法： 对2013年1月至2019年10月期间于首都医科大学附属北京友谊医院接受haplo-HSCT的15例成人原发性HLH患者进行回顾性分析。 结果： 全部15例患者中男10例、女5例，中位年龄21（18~52）岁。家族性噬血细胞综合征2型（FHL-2）8例，FHL-3 4例，Griscelli综合征2（GS-2）、X连锁淋巴组织增生综合征1型（XLP-1）、XLP-2各1例。确诊HLH至接受haplo-HSCT的中位时间为7（2~46）个月。所有患者移植前均接受HLH-94、HLH-2004或DEP方案诱导化疗，8例获得完全应答（CR），7例获得部分应答（PR）。移植预处理：Bu/Cy方案7例，TBI/Cy方案8例。输注单个核细胞12.6（9.2~20.3）×10(8)/kg，CD34(+)细胞4.91（2.51~8.37）×10(6)/kg。粒细胞植活中位时间为13（10~23）d，血小板植活中位时间为12（9~36）d。原发、继发性植入失败各1例。Ⅱ~Ⅳ度急性移植物抗宿主病（GVHD）发生率为71.4%（10/14），慢性GVHD发生率为30.8%（4/13）。移植后预期5年总生存（OS）率为65.5%（95%CI 34.9%~73.3%），移植相关死亡率为26.7%（4/15）。一线诱导治疗后立即接受移植（8例）、二线诱导治疗难治/复发患者（7例）的移植后预期5年OS率分别为87.5%（95%CI 38.7%~66.3%）、42.9%（95%CI 8.5%~65.2%）（χ(2)=2.387，P=0.122）。移植前CR（8例）、PR（7例）患者的移植后预期5年OS率分别为85.7%（95%CI 50.4%~89.8%）、42.9%（95%CI 6.4%~53.0%）（χ(2)=3.185，P=0.074）。 结论： haplo-HSCT是成人原发性HLH的有效治疗手段。.
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