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Dave Elder (David P Elder Consultancy)




28 February 2023 | By

While determining active intakes and control strategies for short chain alkyl N-nitrosamines was relatively easy to establish, nitrosamine drug substance-related impurities continue to present challenges. Here, Dave Elder reflects on the three main instances of nitrosamine contamination in drug products.


Approval of regulatory starting materials

27 October 2020 | By

There are significant interpretational differences between the European Medicines Agency (EMA) and US Food and Drug Administration (FDA)’s guidance on active pharmaceutical ingredient (API) starting materials. In this article, Dave Elder explores the ambiguity in guidance from both agencies and addresses why industry struggles to identify and justify starting materials…


Continuous manufacturing: ICH Q13

26 August 2020 | By

Although steps have been taken to enable the implementation of continuous manufacturing in industry, a lack of global harmonisation in regulations has slowed the adoption of this promising emerging technology. Dave Elder discusses how ICH Q13 seeks to provide a harmonised approach to support this important initiative.