YOUR NEW PEN'S GOT RANGE.
SO DO WE.

Host Resistance

More Than Just a CRO

Just like the Multi-Tool Pen, BRT does more than check the boxes. From pre-clinical support to in vitro and in vivo models, we deliver custom immunotoxicology solutions built to meet your study’s exact requirements.

Looking for quick reference materials? View our one-pager or learn about our service-specific capabilities below.

Pre-Clinical Services

Comprehensive models supporting immune safety evaluation across study types.

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In Vitro services

Human cell–based assays providing mechanistic insight into immunotoxicology.

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In Vivo Models

Disease and hypersensitivity models to evaluate host resistance and immune response.

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Speak With The Expert

Meet with Dr. Florence Burleson — Co-Founder & EVP of BRT

With 30+ years of experience in immunotoxicology/immuno-safety and GLP study direction, Dr. Burleson brings unmatched depth to every study. She has led functional, host-resistance, and immunotoxicology programs across government, pharmaceutical, and CRO environments.

VISIT US AT ACT EXPO 2025 — BOOTH #915

Meet our team in person at Booth #915 during the 46th Annual Meeting of the American College of Toxicology, November 17–18.