Wu Jianrong
Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, TN 38105, USA.
Pharm Stat. 2013 May-Jun;12(3):115-9. doi: 10.1002/pst.1559. Epub 2013 Mar 7.
Drug combinations in preclinical tumor xenograft studies are often assessed using fixed doses. Assessing the joint action of drug combinations with fixed doses has not been well developed in the literature. Here, an interaction index is proposed for fixed-dose drug combinations in a subcutaneous tumor xenograft model. Furthermore, a bootstrap percentile interval of the interaction index is also developed. The joint action of two drugs can be assessed on the basis of confidence limits of the interaction index. Tumor xenograft data from actual two-drug combination studies are analyzed to illustrate the proposed method.
临床前肿瘤异种移植研究中的药物组合通常采用固定剂量进行评估。关于评估固定剂量药物组合的联合作用,在文献中尚未得到充分发展。在此,针对皮下肿瘤异种移植模型中的固定剂量药物组合提出了一种相互作用指数。此外,还开发了该相互作用指数的自助百分位数区间。可以基于相互作用指数的置信限来评估两种药物的联合作用。对实际两药组合研究的肿瘤异种移植数据进行分析以说明所提出的方法。