Drug Companies Send Rejects to EPA to Improve Chemical Safety Tests

WASHINGTON, DC — Four major pharmaceutical companies have given the U.S. Environmental Protection Agency more than 100 drugs that never entered the marketplace in order to help the EPA improve its chemical screening process.

The drugs come from Pfizer, GlaxoSmithKline, Sanofi-Aventis, and Merck, and they were rejected because of the types and levels of toxicity demonstrated by them during clinical trials during their development.

The EPA will screen the drugs with its ToxCast screening tool and compare those results to the results from the clinical trials. Looking at where the results are similar or different will help the EPA improve its screening process.

ToxCast uses 500 automated chemical screening tests to see how chemicals could impact human body processes in ways that lead to negative health effects.

By comparing the ToxCast results to the clinical trials, the EPA will be able to determine which screening tests and which of the numerous biological profiles that result from the tests are most predictive for certain human health effects.

Pfizer pills - http://www.flickr.com/photos/96683394@N00/ / CC BY-ND 2.0