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再生长再性贫血一线移植策略. Seiji Kojima MD. PhD. Department of Pediatrics Nagoya University Graduate School of Medicine Chairman of the Severe Aplastic Anemia Working Party Asia-Pacific Blood and Marrow Transplantation Group. #2. #1. Yes. No. Yes. #3. No. Yes. No.
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再生长再性贫血一线移植策略 Seiji Kojima MD. PhD. Department of Pediatrics Nagoya University Graduate School of Medicine Chairman of the Severe Aplastic Anemia Working Party Asia-Pacific Blood and Marrow Transplantation Group
#2 #1 Yes No Yes #3 No Yes No APHCON Treatment Guideline for SAA
今天的主题 • 应用兔ATG 能作为一线治疗吗? • 比较结果可以期待 MRD 和1MMD? • 如无何时供者,第二次应用ATG + CSA 是适应症吗?
兔ATG治疗SAA经验 长期结果马或兔ATG治疗儿童AA Nagoya大学应用兔ATG 的经验
马vs 兔 ATG n= 33 n= 29 n= 22 n= 69 n= 32 n= 79 n= 46 n= 35 n= 105 n= 24 n= 29 n= 42 n= 60 n= 60
Seiji Kojima MD Department of Pediatrics Nagoya University Graduate School of Medicine
6个月反应 NE NR PR CR horse ATG rabbit ATG
总生存 horse ATG 92% rabbit ATG 84%
免疫抑制治疗 Japan AA 97 Horse ATG: 15 mg /kg/day x 5 days CSA: 6 mg/kg/day adjusted to blood level G-CSF: Only when ANC < 0.2 x 109/L Nagoya Univ in Thymoglobulin era ( 2009 Aug ~ Now ) Rabbit ATG: 3.75 mg /kg/day x 5 days CSA: 6 mg/kg/day adjusted to blood level G-CSF: Only when ANC < 0.2 x 109/L
‘中性粒细胞减少’在兔ATG治疗后 Rabbit ATG CyA WBC Neutr
EBV 再激活患者的临床过程 180,000 Rituximab 375 mg/m2 140,000 EBV copy number [copies / mL (whole blood)] 100,000 60,000 20,000 0 0 7 14 21 28 35 45 49 56 Days after administration of rabbit ATG
今天的主题 • 应用兔ATG 能作为一线治疗吗? • 比较结果可以期待 MRD 和1MMD? • 如无何时供者,第二次应用ATG + CSA 是适应症吗?
患者(N = 578) Matched unrelated Donor (MUD) (n=213) 1MMRD @HLA Class I (n =32) MMRD (n=53) 1MMRD @HLA class II (n=12) Matched related donor (MRD) (n=312) 2-3 MMRD (n=9) Grouped by SEROLOGICAL HLA typing data (A, B, and DR) • 578 children (0-19 y) with AA • Received BMT between 1990-2009 • Available for serological HLA data (A, B, and DR) • Registered to The Japan Society for Hematopoietic Cell Transplantation
5年总生存 MRD (n=312) 91.4 +/- 1.5% Class-I 1MMRD (n=32) 91.7 +/- 4.6% Class-II 1MMRD (n=12) 91.7 +/- 8.0% 1.00 0.75 MUD (n=213) 79.0 +/- 2.9% 2-3 MMRD (n=9) 66.7 +/- 12.2% probability of surivival 0.50 0.25 0.00 0 2000 4000 6000 8000 days after transplantation
OS的多因素分析结果 HR (95% CI) P-value
急性GVHD (III – IV级) 1.00 MRD 5.2 +/- 1.4 % 1MMRD (class I) 32.9 +/- 10.1% p < .001 1MMRD (class II) 18.5 +/- 11.9% p = .03 2-3 MMRD 0.0% p = NS MUD 16.2 +/- 2.9% p < .001 0.75 0.50 1MMRD (Class I) 0.25 1MMRD (Class II) MUD MRD 2-3 MMRD 0.00 0 20 40 60 80 100 Days after transplantation
慢性GVHD (广泛性) 1.00 0.75 MRD 9.0 +/- 1.7 % 1MMRD (class I) 10.0 +/- 5.5% 1MMRD (class II) 0.0 % 2-3 MMRD 12.5 +/- 11% MUD 14.3 +/- 2.8% 0.50 0.25 0.00 0 2000 4000 6000 8000 Days after transplantation P= Not significant
儿童AA治疗步骤 BMT from MRD/1MMRD BMT from MUD Newly diagnosed AA MRD/1MMRD(+) MUD(+) MRD/1MMRD(-) NR MUD(-) IST 2nd IST or HAPLO / CBT CR/PR FIRST LINE THERAPY SECOND LINE THERAPY
今天的主题 • 应用兔ATG 能作为一线治疗吗? • 比较结果可以期待 MRD 和1MMD? • 如无何时供者,第二次应用ATG + CSA 是适应症吗?
day–7–6–5–4–3–2–10+1+2+3+4+5+6 BMT PBSCT Flu(30mg/ m2 ×4) ○ ○ ○ ○ ATG (2.5mg/kg ×4) ○ ○ ○ ○ (5mg/kg ×1) ○ L-PAM(70mg/m2 ×2)○ ○ TBI(2.5Gy ×2)○ 半相合供者的预处理方案 • GVHD Prophylaxis:FK506+sMTX Nagoya University
结论 当没有马ATG时,应用兔ATG 作为一线治疗是可行的. 当1MMD 存在时, 骨髓移植是儿童SAA的一线选择. 对免疫抑制剂无效者当没有HLA-相合的无关供者时,半相合移植是可行的.
致谢 • Asian Pacific Blood and Marrow Transplantation Group : Childhood Aplastic Anemia Study Group Dao Chul Jeong, Xiao Fan Zhu • The Japan Society for Hematopoietic Cell Transplantation Childhood Aplastic Anemia Working Group Hideki Muramatsu, Hiromasa Yabe, Akira Kikuchi, Ryoji Kobayashi • Japan Childhood Aplastic Anemia Study Group Nao Yoshida, Yoshiyuki Takahashi, Akira Ohara