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NITROSAMINES: Where now?

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.

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O-glycan analysis of therapeutic proteins enabled by O-glycoprotease

29 June 2021 | By , ,

Glycosylation of therapeutic proteins is important to biologic drug development and is a critical quality attribute that is monitored during manufacturing. Analysis of O-glycans is technically challenging compared to that of N-glycans. In this review, Xiaofeng Shi, Saulius Vainauskas and Christopher H Taron summarise current O-glycan analytical approaches, describe the…

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Science and risk-based specification setting for excipients

27 October 2020 | By , ,

Reducing unnecessary regulatory burden relating to excipients is important for any pharmaceutical manufacturer. In this article, Sunil Kumar Nataraj, Bastiaan Dickhoff and Kalyan Janjanam discuss a rational basis for controlling and specifying conflicting excipient attributes to avoid potentially tedious and complex regulatory processes.