Biologics Testing

With the most comprehensive biologics testing portfolio in the industry, Charles River offers protocols to meet global regulatory requirements. From biosafety testing and impurity detection to potency determination and lot release programs, our team of scientists and project managers ensure that the most appropriate methods are used for a product.

technician examining PCR plate for real-time PCR assay

Impurity Testing

We have the ability to develop and validate custom assays for HCP, residual DNA and other process- and product-related impurities.

Automated pipetting


With both in vivo and in vitro bioassays, we assist clients with potency, efficacy and safety profiling for regulatory submission and market release.

lab technician reading plates for mycoplasma testing assay

Contamination Testing

Mycoplasma, sterility, endotoxin and viral safety testing for your biopharmaceuticals.

Lab technician observing endpoint viral safety assay plate

Lot Release Testing

We act as a single outsourcing partner for companies to release drug substances and clinical and marketed products into multiple regulatory-distinct markets.