研究碘[131I]-美妥昔单抗注射液的人体药代动力学特征,为临床给药方案及临床应用提供依据。将按纳入标准、排除标准和剔除标准选择的患原发性肝细胞肝癌受试者24例平均分为低、中、高剂量组,各组每位受试者经插管注入相应的注射液,分别...研究碘[131I]-美妥昔单抗注射液的人体药代动力学特征,为临床给药方案及临床应用提供依据。将按纳入标准、排除标准和剔除标准选择的患原发性肝细胞肝癌受试者24例平均分为低、中、高剂量组,各组每位受试者经插管注入相应的注射液,分别在不同时刻采集静脉血及收集尿液,测定样品的放射性计数率(min-1);采用纸层析确定各血样血清中药物的比例,依此校正各血样中药物的放射性计数率;用DASver1.0(Drug And Statistics for Windows)药代动力学程序拟合、计算血液药代动力学参数;鉴定尿液中放射性物质的组成,计算各时间段尿液放射性占注入剂量的百分率(%ID),以分析注射液在尿液的清除动力学特点。研究表明:该注射液血液药代动力学符合动力学二室模型,其在人体内分解代谢产物主要以游离131I的形式通过肾脏排泄,注入后120h内排出尿液的放射性占注入剂量的47.70%~51.16%。因此,该注射液的药代动力学特征满足临床要求,推荐临床的给药剂量为每kg人体27.75MBq注射液。展开更多
Samarium-153- EDTMP (ethylene diamine tetramethylene phosphonate), for its promising biological properties, has been proved as a palliating therapeutic agent for bone tumor in human beings. 153Sin with high radionucl...Samarium-153- EDTMP (ethylene diamine tetramethylene phosphonate), for its promising biological properties, has been proved as a palliating therapeutic agent for bone tumor in human beings. 153Sin with high radionuclear purity and specific activity of 5.18 GBq (140 mCi)/mg Sm2O3 was prepared by irradiating naturalSm2O3(152Sm, 26.7%) sample, replacing costly enriched samarium oxide target, at a flux of 4x 1013n.cm-2.s-1 for 110 h. The yield of 153Sm complexing with EDTMP is greater than 98% at PH 8￣10 in boiling water bath for 30 min, and not significantly decreases within one week after 153Sm-EDTMP complex formation.展开更多
文摘研究碘[131I]-美妥昔单抗注射液的人体药代动力学特征,为临床给药方案及临床应用提供依据。将按纳入标准、排除标准和剔除标准选择的患原发性肝细胞肝癌受试者24例平均分为低、中、高剂量组,各组每位受试者经插管注入相应的注射液,分别在不同时刻采集静脉血及收集尿液,测定样品的放射性计数率(min-1);采用纸层析确定各血样血清中药物的比例,依此校正各血样中药物的放射性计数率;用DASver1.0(Drug And Statistics for Windows)药代动力学程序拟合、计算血液药代动力学参数;鉴定尿液中放射性物质的组成,计算各时间段尿液放射性占注入剂量的百分率(%ID),以分析注射液在尿液的清除动力学特点。研究表明:该注射液血液药代动力学符合动力学二室模型,其在人体内分解代谢产物主要以游离131I的形式通过肾脏排泄,注入后120h内排出尿液的放射性占注入剂量的47.70%~51.16%。因此,该注射液的药代动力学特征满足临床要求,推荐临床的给药剂量为每kg人体27.75MBq注射液。
文摘Samarium-153- EDTMP (ethylene diamine tetramethylene phosphonate), for its promising biological properties, has been proved as a palliating therapeutic agent for bone tumor in human beings. 153Sin with high radionuclear purity and specific activity of 5.18 GBq (140 mCi)/mg Sm2O3 was prepared by irradiating naturalSm2O3(152Sm, 26.7%) sample, replacing costly enriched samarium oxide target, at a flux of 4x 1013n.cm-2.s-1 for 110 h. The yield of 153Sm complexing with EDTMP is greater than 98% at PH 8￣10 in boiling water bath for 30 min, and not significantly decreases within one week after 153Sm-EDTMP complex formation.
