Why do clinical trials in the US?

I'm searching for a reason and here is the one I came up with:

• The world expert resides in the US and you really need her on your team

I couldn't come up with any more concrete reasons. Maybe you don't know the regulations oversees, but that can be easily taken care of, search the web or buy a book, it will save you in the long run. Even if most of your sales are in the US, I don't think a foreign trial hurts you (as long as your sponsor is halfway respected of course).

If you have a standard device, almost anywhere will do. If you have a new device, find a well respected doctor in Europe and see what kind of magic you can work there at half the regulatory burden and less lawsuit liability.

(Photo from Karen Horton)