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Impurity method development

Posted: Thu Jun 05, 2008 6:45 pm
by Apple_insci
Can someone tell me how to develop an impurity HPLC method for a new drug entity? I will have to do for an API impurity method, do I have to spike in all the intermediates or maybe starting materials. Can I only deal with API itself? If there any guideline for such kind method development?

Thanks in advance -Apple

Posted: Fri Jun 06, 2008 8:02 am
by HW Mueller

Impurity method development

Posted: Fri Jun 06, 2008 8:43 am
by scottythree
For what to prove and if you are GMP compliant you should reference the ICH
guidelines Q3 (A,B and C).

http://www.ich.org/LOB/media/MEDIA422.pdf

http://www.ich.org/LOB/media/MEDIA421.pdf

http://www.ich.org/LOB/media/MEDIA423.pdf