Endocrine Disruptor Testing Services
Many chemical substances and mixtures must be evaluated and tested for their potential to affect the endocrine systems of mammals and non-mammalian species. Disruption of endocrine systems can result in adverse effects on reproduction and development. Because of the increasing concern for endocrine disrupting effects, many regulations have now incorporated the requirement on reproduction, development, endocrine-related pathways, and overall health status to assess whether a chemical has the potential to be an endocrine disruptor.
Our scientific and regulatory experts are available to design and conduct all testing and procedures in accordance with international guidelines in a GLP environment. If you need advice, our Regulatory Affairs team is available for consultations and can help with dossier preparation.
View our full portfolio of GLP endocrine disruptor assays. Many of these study designs may also be run as non-GLP, rapid-screening alternatives.
Assays for endocrine disruption as proposed by EPA and OECD:
- Estrogen receptor (ER) binding – rat uterine cytosol (OPPTS 890.1250)
- Estrogen receptor (hERa) binding – human recombinant (OECD 493)
- Estrogen receptor – (hERα) transcriptional activation – human cell line (HeLa-9903) (OPPTS 890.1300, OECD 455)
- Androgen receptor (AR) binding – rat prostate cytosol (OPPTS 890.1150)
- Androgen receptor (AR) – transcriptional activation – CHO-K1 cell line (AR-EcoScreen™) (OECD 458)
- Steroidogenesis – human cell line (H295R) (OPPTS 890.1550, OECD 456)
- Aromatase (human recombinant) assay (OPPTS 890.1200)
- Uterotrophic assay (rat) (OPPTS 890.1600, OECD 440)
- Hershberger (rat) (OPPTS 890.1400, OECD 441)
- Pubertal female (rat) (OPPTS 890.1450)
- Pubertal male (rat) (OPPTS 890.1500)
- Amphibian metamorphosis (frog) (OPPTS 890.1100, OECD 231)
- Fish short-term reproduction (OPPTS 890.1350, OECD 229)
Frequently Asked Questions (FAQs) about Endocrine Disruptor Services
What is the Endocrine Disruptor Screening Program?
The Endocrine Disruptor Screening Program (EDSP) is used to screen pesticides, chemicals, and other environmental contaminants for their potential to impact the androgen, estrogen, and thyroid hormone systems. The program was launched by EPA in the USA. For Endocrine Disruptor testing in Europe, please visit our dedicated page.
What tests are required for the EPA Endocrine Disruptor Screening Program?
The endocrine disruptor screening program (ESDP) utilizes a range of in vitro and in vivo studies to determine adverse effects, dose-response as well as assess and manage risk. Initial assays are outlined in the EPAs Tier 1 Screening Battery.