Adult dual umbilical cord blood transplantation using myeloablative total body irradiation (1350 cGy) and fludarabine conditioning.

Adult dual umbilical cord blood transplantation using myeloablative total body irradiation (1350 cGy) and fludarabine conditioning.
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DOI:
10.1016/j.bbmt.2010.09.009
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发表时间:
2011-06
影响因子:
4.3
通讯作者:
Horwitz, Mitchell E.
Horwitz, Mitchell E.
中科院分区:
医学2区
文献类型:
--
作者:
Kanda, Junya;Rizzieri, David A.;Gasparetto, Cristina;Long, Gwynn D.;Chute, John P.;Sullivan, Keith M.;Morris, Ashley;Smith, Clayton A.;Hogge, Donna E.;Nitta, Janet;Song, Kevin;Niedzwiecki, Donna;Chao, Nelson J.;Horwitz, Mitchell E.

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高治疗相关死亡率和高移植失败率是清髓预处理 HLA 不匹配脐带血 (UCB) 移植中的严重问题。我们进行了一项双 UCB 移植的前瞻性试验,采用改良的清髓术,包括全身照射(TBI;1350 cGy)和氟达拉滨(160 mg/m2)。纳入了 27 名患有血液恶性肿瘤的患者(中位年龄 33 岁;范围 20-58 岁)。冷冻保存总有核细胞 (TNC) 的中位组合剂量为 4.3 × 107/kg(范围:3.2–7.7 × 107/kg)。中性粒细胞(≥500/μl)和血小板(≥50,000/μl)植入的累积发生率分别为80%(95%置信区间(CI),58-91%)和68%(95% CI,46-83%)。移植后 100 天,在移植患者中,单一脐带血单位占主导地位。较高的冷冻保存和输注 TNC 剂量以及输注 CD3+ 细胞剂量是与主要 UCB 单位相关的重要因素(分别为 P = 0.032、0.020 和 0.042)。 2 年治疗相关死亡率和复发率分别为 28%(95% CI,12-47%)和 20%(95% CI,7-37%)。 II-IV级和III-IV级急性GVHD的累积发生率分别为37%(95% CI,20-55%)和11%(95% CI,3-26%),慢性GVHD的累积发生率为31%(95% CI,15-49%)。中位随访时间为 23 个月,2 年总生存率和无病生存率分别为 58%(95% CI,34-75%)和 52%(95% CI,29-70%)。本研究支持使用 TBI 1350cGy/氟达拉滨作为双 UCB 移植的传统清髓预处理的替代方案。
High treatment-related mortality and high graft failure rate are serious concerns in HLA-mismatched umbilical cord blood (UCB) transplantation with myeloablative conditioning. We conducted a prospective trial of dual UCB transplantation using modified myeloablation consisting of total body irradiation (TBI; 1350 cGy) and fludarabine (160 mg/m2). Twenty-seven patients (median age, 33 years; range, 20–58 years) with hematologic malignancies were enrolled. The median combined cryopreserved total nucleated cell (TNC) dose was 4.3 × 107/kg (range, 3.2–7.7 × 107/kg). The cumulative incidences of neutrophil (≥500/μl) and platelet (≥50,000/μl) engraftment were 80% (95% confidence interval (CI), 58–91%) and 68% (95% CI, 46–83%), respectively. Among engrafted patients, a single cord blood unit was predominant by 100 days post transplantation. A higher cryopreserved and infused TNC dose and infused CD3+ cell dose were significant factors associated with the predominant UCB unit (P = 0.032, 0.020, and 0.042, respectively). Treatment-related mortality and relapse rates at 2 years were 28% (95% CI, 12–47%) and 20% (95% CI, 7–37%), respectively. Cumulative incidences of grades II–IV and grades III–IV acute GVHD were 37% (95% CI, 20–55%) and 11% (95% CI, 3–26%), respectively, and that of chronic GVHD was 31% (95% CI, 15–49%). With a median follow-up of 23 months, overall and disease-free survival rates at 2 years were 58% (95% CI, 34–75%) and 52% (95% CI, 29–70%), respectively. This study supports the use of TBI 1350cGy/fludarabine as an alternative to conventional myeloablative conditioning for dual UCB transplantation.
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期刊: Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation
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