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Johns Hopkins Bloomberg School of Public HealthCAAT

About Us: Center for Alternatives to Animal Testing


The Johns Hopkins Center for Alternatives to Animal Testing (CAAT), founded in 1981, is part of the Johns Hopkins University Bloomberg School of Public Health, with a European branch (CAAT-Europe) located at the University of Kostanz, Germany. 

We promote humane science by supporting the creation, development, validation, and use of alternatives to animals in research, product safety testing, and education. We seek to effect change by working with scientists in industry, government, and academia to find new ways to replace animals with non-animal methods, reduce the numbers of animals necessary, or refine methods to make them less painful or stressful to the animals involved.

And our official journal, ALTEX: Alternatives to Animal Experimentation, can be found here.

You can follow CAAT on FacebookTwitter, and LinkedIn, or visit our YouTube channel.

Bloomberg School lobby


CAAT-Europe, housed at the University of Konstanz, coordinates transatlantic activities to promote education in humane science and will participate in and/or coordinate publicly and privately funded European projects. Dr. Thomas Hartung serves as program liaison representing Johns Hopkins, and Dr. Marcel Leist serves as the University of Konstanz liaison. Thomas Hartung is also a Professor for Pharmacology and Toxicology at Konstanz. Furthermore, Alexander Burkle (Molecular Toxicology) and Daniel Dietrich (Human and Environmental Toxicology) of Konstanz are members of CAAT-Europe.

Goals of CAAT-Europe:

  • Establish a CAAT EU faculty and advisory board composed of sponsor representatives and prominent academics from Europe
  • Establish a competence base of European experts available for project work
  • Participate in the Transatlantic Think Tank for Toxicology (t4) devoted to conceptual work for the paradigm shift in toxicology
  • Coordinate a series of information days on relevant developments from the US in Europe,  a reciprocal of the program already established by CAAT in the US
  • Set up  transatlantic consortia for international research projects on alternative methods
  • Support ALTEX as the official journal of CAAT, EUSAAT, and t4.
  • Develop strategic projects with sponsors to promote humane science and new toxicology
University of Konstanz logo
University of Konstanz photo