Call for tender for laboratories

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Call for partner laboratories

PEPPER is launching its second cycle of pre-validation. Three methods have been selected for the 2022 exercise:

  1. Retinoic acid receptor transactivation assay (RAR TA)
  2. Avian sexual development
  3. Assessment of retinoic acid receptor (RAR)- and glucocorticoid receptor (GR)-dependent human neural progenitor cell proliferation arrest

We are looking for “partner labs “ ready to participate to their pre-validation.

It implies 2 steps :

  • a first step to assess method transferability (can partner labs successfully implement the methods with consistent results)
  • a second step to assess relevance and reliability with blind-coded substances

The final outcome of the project is to submit the pre-validated methods to international organisations (such as the OECD) to increase the regulatory tools available for the characterisation of endocrine disrupters.

A short description of the methods is can be found below in order to allow you to know if you have the necessary equipment and skill.

Should you be interested, we will provide you with more detailed information (duration, number of substances …)

Please contact us at, or