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首页> 外文期刊>Journal of pharmaceutical sciences. >Comparative assessment of empirical and physiological approaches on predicting human clearances.
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Comparative assessment of empirical and physiological approaches on predicting human clearances.

机译:比较经验和生理方法对预测人类清除率的评估。

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摘要

The empirical and physiological predictive approaches to human clearance were evaluated using preclinical in vitro and in vivo data of various datasets to establish a methodology for the prediction of clearance. Among the examined empirical approaches, an allometric scaling method with the rule of exponent (ROE), based on the exponent in simple allometry, provided better prediction. The effect of lipophilicity (clog P) and clearance on the predictivity was investigated using the ROE method. High predictivity was found for a low lipophilic compound with clog P < 0 and for a compound with moderate or high clearance. As a physiological approach, the in vitro-in vivo scaling method using metabolic stability in liver microsomes and hepatocytes was evaluated, and the predictivity taking the plasma protein binding and the nonspecific binding in incubation into consideration was compared with the ROE method. The two methods appeared to show comparable predictivity, although the in vitro-in vivo scaling was conducted under limited conditions like the use of physiological scaling factor and lipophilicity-derived nonspecific binding data. The ROE method could be an alternative predictor of the human clearance of compounds to which a physiological approach cannot be applied, in addition to low lipophilic compounds, with acceptable accuracy.
机译:使用各种数据集的临床前体外和体内数据评估了人类清除率的经验和生理预测方法,以建立清除率的预测方法。在所研究的经验方法中,基于指数的ROL(Alleometric scale)方法(基于简单Allometry中的指数)提供了更好的预测。使用ROE方法研究了亲脂性(clog P)和清除率对可预测性的影响。发现对clog P <0的低亲脂性化合物和中等或高清除率的化合物具有较高的预测性。作为一种生理学方法,评价了利用肝微粒体和肝细胞的代谢稳定性进行的体内-体外缩放方法,并将与血浆蛋白结合和孵育中的非特异性结合考虑在内的预测性与ROE法进行了比较。尽管在有限的条件下(例如使用生理学比例因子和亲脂性衍生的非特异性结合数据)进行了体外-体内缩放,但这两种方法似乎显示出可比的可预测性。除了低亲脂性化合物以外,ROE方法还可以替代人类清除无法应用生理学方法的化合物的人类清除率,其准确性可以接受。

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