Our Opinion

Sierra Oncology, Inc. is on the Cruelty Free Investing list for exploiting animals because the company does animal testing for some of their medical analysis and clinical research.

Supporting Evidence:

The company stated in the following press release that they exploit animals for product testing.

“These results were accompanied by an induction of anti-tumor cytotoxic T-cells and M1 macrophages and a corresponding reduction in several pro-tumorigenic cell types in the tumors of drug-treated animals.” Read the following article

Company Description

Company Website: https://www.sierraoncology.com