Testing of chemicals

Webinar Series on Testing and Assessment Methodologies


The OECD webinars on Testing and Assessment Methodologies focus on selected ongoing projects that will results in the short to medium term in new methodologies to test and assess chemicals. These free webinars are open to potential end users among regulators and contract research organisations who want to get familiar with new standards and approaches. Video recordings of our webinars are made available online afterwards.


Webinar on Testing and Assessment Methodologies: the Adverse Outcome Pathway (AOP) framework

When: Tuesday 30 April 2019 @ 1 pm (CET Paris time) / 7 am (EST)

Join us on 30 April 2019 to learn and discuss the Adverse Outcome Pathway (AOP) framework. The AOP framework is a collaborative tool that applies an innovative approach for collecting mechanistic knowledge from various sources that can eventually support chemical safety assessment.

The following questions will be addressed: 

    • What is the AOP framework and why should you care?
    • Why are we developing AOPs?
    • Why collaborations are encouraged and why should scientific societies be brought in?
    • What are the opportunities for collaboration in AOP development?
    • How your scientific achievements can contribute to the overall knowledge?

      Please send us your questions in advance to by 26 April. Submitting them in advance will help us determine the focus topics. 


 > Nathalie Delrue (OECD Secreteriat): OECD AOP Programme  
 > Kate Willett (Humane Society International): An Introduction to AOP framework 
 > Jason O’Brien (Environment Canada): AOP collaborative development   
 > Dan Villenueve (US Environmental Protection Agency): Examples of AOP application in chemical risk assessment 

To register for the free online webinar:

1. Go to the online registration.
2. Click on "Register" and enter the requested information. There is no password required for registration.
3. Click "Submit"


Missed our wEBINAR ON Defined Approaches for Skin Sensitisation? watch the video recording

On 16 January 2019, Patience Browne of the Environment Directorate presented an overview of an on-going project led by the European Commission Joint Research Centre/the United States/ Health Canada.

‌A Defined Approach is a combination of non-animal methods with a fixed data interpretation procedure. Defined Approaches reduce limitations of single alternative methods and are increasingly needed to generate chemical safety data that satisfy the current regulatory requirements in OECD member countries without use of animals.




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