Who are you contacting to get this information? I tried to get in touch with the woman listed on the clinicaltrials page and the U of Miami. I wasn't able to speak to anyone at either place. I left a message with both but I'm doubtful I hear anything back.
To get back on track, I found out today that the University of Iowa and KU Med in Kansas City, Kansas are both participating in the Phase III AM-101 trials (which should be starting within a week, according to who I talked to). That's as much info as I have for the midwest region of the US. I'm imagining that the Mayo Clinic will be participating as well, given their size and reputation for being cutting edge with research, but I can't confirm that for sure.