The MTS consultant, Oona McPolin, will deliver a presentation entitled, ‘Challenges in Development and Validation of Stability Indicating Methodology‘ at the JPAG symposium, ‘Stability VI’ on the 30th June 2022, which will be held at the Royal Society of Chemistry in Burlington House, London. If you are interested in the analytical methodology used for supporting […]
Tag: Validation
Limit of Quantitation: Does it Matter?
MTS Helpdesk Question: Is the limit of quanitation always important when validating methods for impurities? Answer: Defined as “the lowest amount of analyte in a sample which can be quantitatively determined with suitable precision and accuracy” in ICH Q2, limit of quantitation (or ‘quantitation limit’ in the ICH terminology) is an important method performance characteristic […]
Drafts of ICH Q2(R2) and Q14 on Public Consultation
Draft versions of the revision of ICH Q2, Validation of Analytical Procedures, and also the new guideline Q14, Analytical Procedure Development, were published on the 24th March 2022. The deadline for comments is 31st July 2022. You can view the draft guidelines, and also a presentation from ICH about the guidelines, using the following links: […]
How Much Forced Degradation in a Stress Study?
MTS Helpdesk Question: When I forcibly degrade my drug or drug product to create degradation products, how much degradation should I aim for? Answer: The aim of a forced degradation study is to generate degradation products from a drug which are both realistic and representative, typically for the purposes of assessing degradation pathways, or to […]
Do I Have to Revalidate a Method if the HPLC Column is Changed?
MTS Helpdesk Question: I would like to have a ‘back-up’ column for my HPLC method so that I am not reliant on one supplier, but how can I choose one that will be suitable and do I need to validate the method fully on the replacement column? Answer: My preference is to develop a new […]
What is Mass Balance in a Forced Degradation Study?
MTS Helpdesk Question: What is the ‘mass balance’ for an analytical method and is it critical that I investigate it as part of method development or method validation? Answer: When used in the context of an analytical method, the term ‘mass balance’ relates to its ability to analyse the degradation products of a drug molecule. […]