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The New “Big Three” Biocompatibility In Vitro Alternatives Are at Our Door

Every medical device manufacturer must conduct the Big Three biocompatibility tests, or provide justification why the tests were not performed. The Big Three tests include cytotoxicity, irritation, and sensitization. Cytotoxicity is an in vitro test, while irritation and sensitization tests are in vivo tests (conducted on animals). Now, we are on the verge of in vitro alternatives for these animal tests, making the big three cheaper, quicker, and having less impact on animals. This Tech Theater will cover:

  • What are sensitization and irritation tests looking for?
  • Why are we looking for in vitro alternatives?
  • How do we conduct these tests?
  • What is the status in vitro testing?

Thor Rollins

Thor Rollins

RM (NRCM)
Biocompatibility Expert

Thor Rollins is a certified microbiologist and specializes in the selection and conduct of in vitro and in vivo biocompatibility tests. He actively speaks on biocompatibility related topics through Nelson Labs’ external seminars, webinars, and tradeshows. He presented on biocompatibility at the American College of Toxicology annual meeting in 2013 and has published many articles...