The training course was attended by 21 participants and 7 lecturers. The course took place on October 8, 2015, in the meeting rooms of the ISP/WIV in Brussels. The audience appeared already to be professionally involved to some degree in the assessment of skin sensitisation.
The morning session was devoted to a general introduction of underlying biological principles and medical background (Marc Pallardy, Université Paris-Sud, France), and two overviews of in vivo/in vitro testing with regulatory status (Jeroen Vanoirbeek, KU Leuven, Belgium and A Van Rompay, Belgium, respectively). There followed an explanation of in vitro approaches for testing and assessment of skin sensitisation (Erwin Roggen, 3Rs Management and Consulting ApS, Denmark) and a presentation on computational testing (Sabine Van Miert, Thomas More Kempen, Belgium). The morning session ended with a talk on interpretation of results and consequences for classification (Thomas Petry, Toxminds, Belgium). In the afternoon, there was a very productive session with exercises on in vivo skin sensitisation. The participants expressed a need for more in-depth training with emphasis on the conduct and interpretation of in vitro testing of skin sensitisation. This could constitute the second part of a next course on skin sensitisation.