The proceedings of the Second International Conference on Harmonisation (ICH 2) have recently been published [1]. This huge project on harmonisation of requirements and standards of drug regulatory bodies in the European Union (EU), USA and Japan is of interest not only to scientists in the pharmaceutical industry and regulatory authorities, but to clinical pharmacologists in general. This article, gives a brief overview about the objectives, the concept and the working procedures of the ICH project, as well as the results so far achieved. A detailed description can be found in the proceedings mentioned above [1].