pig whipworm therapy

What is being done to get this therapy FDA approved in the UNITED STATES. The study from UNIVERSITY OF IOWA is almost 10 years old and fda alert 57-21 bans the eggs. where can i go and what can i do to help my son to get this treatment for crohns? my normal email is mofireman03@yahoo.com. that is mofireman zero three at yahoo dot com.

thank you.