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.

PreClinical Services

Integrated in vitro and in vivo approaches to evaluate immune safety and efficacy

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In Vitro services

Human cell-based assays to evaluate immune function and mechanistic responses

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In Vivo studies

Rodent (mouse & rat) models to evaluate immune function, host resistance, and therapeutic efficacy

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leadership in immunotox

Dr. Florence Burleson | Co-Founder & EVP of BRT

With over 30 years of experience in immunotoxicology and immune safety, Dr. Burleson provides strategic scientific guidance across in vitro and in vivo study design. Her expertise spans host resistance, functional immune assays, and regulatory-focused immunotoxicology programs across pharmaceutical, government, and CRO environments.