And similarly there are other countries that are much more lax when it comes to animal and human studies, so there is a cottage industry of US and european comp

And similarly there are other countries that are much more lax when it comes to animal and human studies, so there is a cottage industry of US and european companies doing clinical work in those countries before doing their big US or EU studies. Each country has different laws, different lines that can or can't be crossed. Your example and mine are both good examples.