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UK Poised for Leadership in Chemical Safety with New Approach Methodologies (NAMs) Framework

General
13
November 2024
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450
Dr Steven Brennan
The UK advances chemical safety with New Approach Methodologies (NAMs), reducing animal testing and boosting regulatory innovation.
London, UK
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The UK's Hazardous Substances Advisory Committee (HSAC) has recommended the adoption of New Approach Methodologies (NAMs) in chemical regulation, paving the way for the UK to enhance chemical safety while reducing animal testing. This proposal, presented to the Department for Environment, Food & Rural Affairs (Defra), aligns with post-Brexit opportunities and aims to position the UK as a global leader in sustainable chemical assessment.

NAMs in UK Chemical Regulation

In response to Defra's request, HSAC has outlined a framework for integrating NAMs, which are advanced, cruelty-free testing methods that bypass traditional animal-based toxicology. NAMs leverage high-throughput screening, computational modelling, and 'omics' technologies (e.g., genomics and proteomics), allowing for a precise understanding of chemical effects on biological processes. These tools support the UK's commitment to the 3Rs principle of reducing, refining, and replacing animal testing while enhancing the robustness of chemical safety data.

Advancements and Strategic Opportunities

Since 2012, NAMs have gained traction through initiatives like the OECD’s Extended Advisory Group on Molecular Screening and Toxicogenomics and substantial EU funding projects, including Horizon Europe’s PARC initiative. HSAC notes that integrating NAMs under UK REACH could substantially reduce animal testing, accelerate assessments for thousands of chemicals, and support international safety standards. “The UK is well-positioned to leverage its scientific advances in public health and regulatory science,” HSAC stated, recognising NAMs as a path to regulatory efficiency and environmental protection.

Key Recommendations from HSAC

HSAC’s report highlights several strategic recommendations:

  • Adoption of a Progressive NAMs Regulatory Framework: A stepwise regulatory approach will utilise NAMs based on certainty levels in their findings. Initial applications include grouping chemicals for prioritisation, progressing towards higher certainty applications like hazard characterisation.
  • Establishment of Centres of Excellence: UK-based facilities will drive NAMs research, validation, and training, ensuring broad adoption across both public and private sectors.
  • Incentivisation for Chemical Registrants: Defra could encourage registrants to submit NAMs-derived data on chemical modes of action (MoAs) to streamline safety assessments.
  • Development of UK Reference Laboratories: Establishing national laboratories will support NAMs validation and help ensure their credibility for regulatory use.

Addressing Industry Concerns and Global Impact

NAMs could bring substantial savings for the UK chemicals industry by reducing reliance on costly animal tests, which are often viewed as an unnecessary risk, particularly for small companies. However, without clear regulatory criteria, industry stakeholders worry that NAMs data may not be accepted. To mitigate these concerns, HSAC recommends creating technology-agnostic NAMs acceptance criteria to allow for ongoing technological advancements.

Early Adoption and Future Benefits

The Progressive NAMs Regulatory Framework proposed by HSAC encourages a “Group First” testing approach, where chemicals are first grouped based on shared bioactivity, reducing the need for animal testing. HSAC anticipates that NAMs could eventually replace traditional methods, marking a shift towards more humane, efficient, and environmentally protective chemical assessments. This progressive adoption positions the UK to benefit early from NAMs’ advantages, potentially improving public health protections and boosting the chemical industry’s sustainability and international competitiveness.

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