Those have been out for a while - several years. However, it will probably be years before (if) they become available. Prochymal was showing promise until last year when their Phase III trials went awry.....
"What can't be changed must be endured" - unknown
DX with distal Crohn's colitis Oct 2007, predominantly in rectum
Colozal and Canasa for 2+ years - developed an intolerance
6MP - elevated LFTs after 100mg, no effect after 9 months
Currently: Remicade (Nov '09), and Paleo Diet. Not quite remission, but so much better!