1大剂量口服白消安在异基因造血干细胞移植预处理患者体内的药代动力学研究张善堂a,孙自敏b,刘会兰b,方焱a,耿良权b,唐丽琴a,吴云b,谯川南b,屈建a(安徽医科大学附属省立医院a.药剂科;b.血液科,合肥230001)摘要:目的研究口服大剂量白消安在异基因造血干细胞移植(allo-HSCT)预处理患者体内的药代动力学特征。方法allo-HSCT预处理患者口服白消安1mg/kg,q6h,共16剂。在首剂和第9剂给药时,分别于给药前及给药后不同时间点采集血样,用高效液相色谱法测定血浆白消安浓度;用DAS软件进行药动学房室模型拟合,计算药动学参数。结果首剂和第9剂给药后白消安在allo-HSCT预处理患者体内血药浓度-时间曲线均符合一室模型,其主要药动学参数分别为:t1/2(133.03±30.62)与(131.39±28.15)min、Ke(0.005±0.001)与(0.006±0.001)min-1、Vd/F(0.562±0.119)与(0.459±0.077)L/kg、CL/F(0.003±0.001)与(0.003±0.001)L/min/kg、AUC(0-t)(910.3±146.9)与(1158.5±139.0)μmol/L*min、AUC(0-∞)(1401.9±243.2)与(1689.0±312.4)μmol/L*min;白消安平均稳态血浆浓度为(3.29±0.39)μmol/L。结论口服大剂量白消安在allo-HSCT预处理患者体内过程符合一室药动学模型,主要药动学参数个体差异大,多次给药后药物清除率发生改变。关键词:白消安;异基因造血干细胞移植;预处理方案;药代动力学PharmacokineticsoforalbusulfaninpatientsundergoingallogeneichematopoieticstemcelltransplantationZHANGShan-tanga,SUNZi-minb,LIUHui-lanb,FANGYana,GENGLiang-quanb,TANGLi-qina,WUYunb,QIAOChuan-nanb,QUJiana(a.DepartmentofPharmacy,b.DepartmentofHematology,TheAffiliatedProvincialHospitalofAnhuiMedicalUniversity,Hefei230001,China)ABSTRACTOBJECTIVETostudythepharmacokineticprofilesoforalbusulfaninChinesepatientsundergoingallogeneichematopoieticstemcelltransplantation.METHODSBloodsamplesof9adultpatientswerecollectedfollowingthefirstandtheninthdoseofastandard16doseoralbusulfan,4-dayregimen.TheplasmaconcentrationofbusulfanweredeterminedbyHPLC,andthepharmacokineticparametersofbusulfan1基金项目:安徽高校省级自然科学研究项目(KJ2007B317ZC)作者简介:张善堂,男,硕士,副主任药师。Email:zhangshantang@163.comwerecalculatedbyDASstatisticalsoftwere.RESULTSTheplasmaconcentration-timecurvesafterdose1anddose9oralbusulfan1mg/kgin9patientswerefittoone-compartmentmodel,respectively;Themainpharmacokineticparameterswereasfollow:t1/2(133.03±30.62)and(131.39±28.15)min、Ke(0.005±0.001)and(0.006±0.001)min-1、Vd/F(0.562±0.119)and(0.459±0.077)L/kg、CL/F(0.003±0.001)and(0.003±0.001)L/min/kg、AUC(0-t)(910.3±146.9)and(1158.5±139.0)μmol/L*min、AUC(0-∞)(1401.9±243.2)and(1689.0±312.4)μmol/L*min,respectively.Busulfanaveragesteadyplasmaconcentrationwere(3.29±0.39)μmol/L.CONCLUSIONThepharmacokineticprofilesoforalbusulfanarefittoone-compartmentmodel,andthemainpharmacokineticparameters(suchasVd/F、CL/FAUC(0-t)、AUC(0-∞))aresignificantdifferencebetweendose1anddose9.KEYWORDS:busulfan;allogeneichematopoieticstemcelltransplantation;preparativeregimen;pharmacokinetics白消安(Busulfan,Bu)是一种双功能烷化剂,对造血祖细胞和多能干细胞具有细胞毒作用,通常与环磷酰胺(Cyclophosphamide,Cy)、氟达拉滨(fludarabine,Flu)等组成联合方案用于造血干细胞移植(hematopoieticstemcelltransplantation,HSCT)治疗恶性血液病的移植前预处理[1,2]。国外对白消安的药物动力学特性进行了广泛的研究,证实预处理方案的疗效和毒副作用与白消安血浆浓度-时间曲线下面积(AUC)或稳态血药浓度有密切关系,且白消安的药动学性质具有显著的个体差异[3,4];国内尚未见有白消安药动学研究文献报道。...