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本帖最后由 beiwei5du 于 2015-11-19 17:24 编辑
各位蒲友:
想咨询一下大家
1、对于非混合组分API是否一定有进行均一性验证呢????我个人觉得这个应该看你本身API的特性(比如含量,活性,工艺)和后期针对的那种剂型吧!有看过新版GMP和GMP指南中有如下,《药品生产验证指南2003》中在563页有相关的说明。
2、若是对于API进行工艺验证,是否有相应的指导原则呢???(比如RSD设定、指标选取、取样位置的选取,取样数量的选取,取样量的选取等等),我有看到部分公司使用RSD≤10(针对各组分溶剂残留,水分,单杂,总杂等等),但是我不知道如何选取RSD。有查询到FDA发布的一个行业指南《powder blends and finished dosage units-stratified in process dosage unit sampling and assessment》其中有有将取样检测标准和Stratified In-Process Dosage unit data相结合的方式,具体的标准流程下图powder blends and finished dosage units 17,但是我不知道这个指南是否适用于原料药的均一性验证呢。
The methods described in this guidance can be used to monitor active ingredient homogeneity of powder blends and to ensure uniform content of the finished product for solid oral drug products.These methods are only one way to satisfy the CGMP and application review requirements for in-process testing to demonstrate adequacy of powder mix and uniform content of the finished product. The method assumes appropriate monitoring of all manufacturing steps as required by the regulations or application commitments. This guidance does not discuss the assessment of the potency and other attributes that can affect the finished dosage units, or the homogeneity of inactive ingredients. Formulations with extremely low dose and/or high potency may call for more rigorous sampling than that described in this guidance to assess the uniformity of powder blends or the uniformity of content of the finished dosage units.
如果适用原料药均一性的话,那么其RSD标准也不是≤10%啊(4%,5%,6%)????
3、我有见过做原料药均一性验证的,仅仅是做化学均一性验证(比如单杂,水分,溶剂残留)。如果在做原料药均一性验证的话,个人觉得必须包括物理均一性(比如粒径分布),才能做化学均一性啊。(因为物理均一性是化学均一性的前提)。不知道是否是这样???
4、还有一个问题就是对于混合均一性,取样不在混合机中取样,将其物料放料至桶中或PE袋中进行相应的取样,是否合适??(有了解其涉及的一个significant event)
Significant event is any operation during solid dosage production process that can affect the integrity of the in-process materials and, hence, their quality attributes. Transferring powder from a blender to a bin or from the bin to a hopper are two examples of significant events in the blending and compression process@hongwei2000 @意林枫 @石头968
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