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A high-level overview of the OECD AOP Development Programme.

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Summary
This summary is machine-generated.

The Organisation for Economic Co-operation and Development (OECD) Adverse Outcome Pathway (AOP) approach enhances chemical safety. This framework is now being extended to the radiation field to improve risk assessment and regulatory decision-making for both toxicants and radiation.

Keywords:
OECDadverse outcomeadverse outcome pathwayhazard assessmentkey eventmolecular initiating eventrisk communicationrisk management

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Area of Science:

  • Environmental toxicology and chemical safety assessment.
  • Radiation research and radiological protection.
  • Regulatory science and risk management.

Background:

  • The Organisation for Economic Co-operation and Development (OECD) Chemical Safety Programme aims to ensure human and wildlife safety from toxicants.
  • The Adverse Outcome Pathway (AOP) approach integrates biological knowledge and test methodologies for efficient hazard identification and risk management.
  • The OECD AOP Development Programme, launched in 2012, has matured and is expanding to new scientific disciplines, including the radiation field.

Purpose of the Study:

  • To provide the radiation community with an overview of the OECD AOP Development Programme.
  • To illustrate the application of AOPs using examples from chemical toxicology.
  • To encourage the adoption and implementation of AOPs in radiation research and regulation.

Main Methods:

  • Review and synthesis of the OECD AOP Development Programme's evolution and principles.
  • Presentation of case examples from chemical toxicology to demonstrate AOP application.
  • Discussion of efforts toward quantitative AOP development and regulatory implementation.

Main Results:

  • The OECD AOP framework offers a transparent and structured approach beneficial for both chemical and radiation safety.
  • The programme has matured with increasing AOP endorsements and interdisciplinary engagement.
  • A new OECD topical group focuses on evolving the AOP framework for radiation research and regulation.

Conclusions:

  • Despite differing drivers, the principles of the AOP approach can benefit both chemical and radiation safety disciplines.
  • Understanding the OECD AOP Development Programme's evolution and applications can motivate its expansion in the radiation field.
  • The AOP framework holds potential for enhancing regulatory decision-making in radiation protection.