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Author name: emma.scrafton

Hi, I'm Emma, and I work within the Marketing team at Lhasa Limited. I have a masters degree in Chemistry.

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Current status of the Ames test for N-nitrosamines

In our earlier instalments of the Lhasa blog, we have discussed the latest regulatory insights presented by the U.S. Food and Drug Administration (FDA), the European Medicines Agency (EMA), and Health Canada regarding acceptable intake limits for Nitrosamine Drug Substance-Related Impurities (NDSRIs). Now, our focus zeroes in on the Enhanced Ames Test (EAT) and its […]

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NDSRI 1

What you need to know about the FDA’s new guidance on NDSRIs

The U.S. Food and Drug Administration (FDA) recently took a significant step forward in safeguarding public health by issuing a new guidance titled “Recommended Acceptable Intake Limits for Nitrosamine Drug Substance Related Impurities (NDSRIs) Guidance for Industry.” This important update addresses concerns related to NDSRIs, a group of nitrosamine impurities found in numerous drug products,

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The future of dermatological safety: FDA’s new approach to predicting dermal sensitisation

Traditional methods for evaluating the immunotoxic potential of pharmaceuticals typically involve animal testing, which is time-consuming, costly, and raises ethical concerns. In response to these challenges, regulatory agencies, including the Food and Drug Administration (FDA), are actively encouraging the development and acceptance of alternative methods. FDA’s new guidance on dermal sensitisation The FDA has recently

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Veterinary medicines blog

Harnessing (Q)SAR models to control mutagenic impurities in veterinary medicinal products

Veterinary medicines are commonly used by veterinarians, farmers and pet owners to treat and prevent animal diseases. Like what is already in place for pharmaceutical products within ICH M7, a guideline is also available for veterinary medicinal products to ensure appropriate control of mutagenic impurities. The guideline provides a practical framework that is applicable to

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The best of both worlds: combining a defined approach and read-across to predict skin sensitisation potency

New approach methodologies (NAMs) are non-animal methods – including in chemico/in vitro assays and in silico predictions – which are increasingly being used to assess the safety of cosmetic ingredients and products. A next generation risk assessment (NGRA) framework for skin sensitisation has recently been developed, and case studies highlighting the role of NAMs, defined

The best of both worlds: combining a defined approach and read-across to predict skin sensitisation potency Read More »