金币
UID176556
帖子
主题
积分25187
注册时间2014-6-6
最后登录1970-1-1
听众
性别保密
|

楼主 |
发表于 2017-10-7 23:53:09
|
显示全部楼层
Because of changes in synthetic routes and formulations, the impurities and degradation products formed may change during development. Accordingly, related substances are often determined using area percentage by assuming that the relative response factors are similar to that of the API. If the same assumption is used to conduct the analyses and in toxicological impurity evaluation and qualification, any subsequent impurity level corrections using relative response factors are self-corrective and hence mitigate the risk that subjects would be exposed to unqualified impurities. As a result, extensive studies to demonstrate mass balance are typically not conducted during early development.
这句话如何理解呢???
http://www.pharmtech.com/gmps-method-validation-early-development-industry-perspective-part-ii?pageID=2
|
|