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Discovery & Development Analytical Science

Pure and Simple(r)

The action of breast cancer drug tamoxifen is mediated not by the drug itself, but by its metabolite, Z-endoxifen. The body’s ability to convert the drug varies between patients because of genetic differences in enzyme production. Administering Z-endoxifen directly would remove this variability, but, until now, synthesis of the drug has been prohibitively expensive. Now, researchers from Eindhoven University of Technology, Syncom BV, and the Antoni van Leeuwenhoek hospital in the Netherlands have found an inexpensive way to produce Z-endoxifen directly – using only a simple paper filter similar to those used for making coffee to isolate the pure drug.

The development has been some years in the making. “In 2011, Jos Beijnen (Netherlands Cancer Institute) asked if we would be willing to synthesize a gram of Z-endoxifen for his research group, which is looking into the pharmacology of different tamoxifen metabolites (among them Z-endoxifen). At the time, Z-endoxifen was hypothesized to be the active form of tamoxifen and its efficacy in clinical trials had not yet been shown,” says Lech Milroy, Assistant Professor at Eindhoven University. “As part of her Bachelor’s project, Daphne van Scheppingen and I produced milligram quantities of the Z-endoxifen as a 95/5 mixture of Z/E isomers using an optimized route.”

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Stephanie Sutton

Making great scientific magazines isn’t just about delivering knowledge and high quality content; it’s also about packaging these in the right words to ensure that someone is truly inspired by a topic. My passion is ensuring that our authors’ expertise is presented as a seamless and enjoyable reading experience, whether in print, in digital or on social media. I’ve spent seven years writing and editing features for scientific and manufacturing publications, and in making this content engaging and accessible without sacrificing its scientific integrity. There is nothing better than a magazine with great content that feels great to read.

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