Stilwell, Kansas

Have you met the team in Stilwell, Kansas? Our colleagues from the former Citoxlab facility are the latest to join a growing network of scientists dedicated to helping you reach your goals. Supporting your development of human and veterinary pharmaceuticals, Stilwell offers quick study starts and ready access to leading toxicology, safety pharmacology, pharmacokinetics, animal health, and pathology services.

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Charles River corporate headquarters

Safety Assessment and Discovery Study Types

Part of a global network of industry-leading safety assessment facilities, our Stilwell site has the scientific excellence and state-of-the art laboratories to ensure you receive exceptional support your safety and discovery programs.

Meet the Team

Head shot of Phil Atterson, BS, MSc.

Phil Atterson, MSc

General Manager

Head shot of Kyle Kappeler, BS, PhD.

Kyle Kappeler, PhD

Director, Toxicology


Head shot of Tom Haymaker, BS.

Tom Haymaker, BS

Associate Director, Pharmacokinetics

Head shot of Sandra Love, PhD.

Sandra Love, PhD

Director, Pharmacology


Support for Your Preclinical and Animal Health Programs

Whether you need a complete IND-enabling program or stand-alone assessments, our Safety Assessment team provides a full range of in vivo and in vitro testing services and regulatory support to comply with worldwide regulatory restrictions.

Developing veterinary pharmaceuticals? Get support from the specialists with 40 years of experience. We can help you achieve regulatory trial approval, design protocols and case report forms, select and train investigators, choose and monitor external laboratory facilities, and assist with all aspects of your program including project management, study monitoring, adverse events response, drug supply and management, quality assurance, statistics, and production of the final study report.


Investigational New Drug Development Programs eGuide

Your IND-enabling studies will help you submit your IND application to the FDA to move into clinical trials. The drug development process can be simplified with Charles River executing pharmaceutical and biotechnology companies’ IND programs.

Evolving market pressures are changing the focus of the drug development industry, further accelerating early phases in order to create late-stage pipeline growth.
Read the eGuide



Need to consult a scientist in Kansas?