Welcome to the forum!
But, I am sorry to hear that your son is going through a rough time and hasn't responded to remicade.
My son, Stephen, was diagnosed in May 2011, just before turning 17. His treatment has been Enternal Nutrition (EN). If your son agrees to try EN, it can be a fantastic treatment option - success rate at inducing remission is comparable to steroids, has anti-inflammatory properties, provides all necessary nutrition will still allowing bowel rest and has NO side effects! My son responded very well to his initial treatment (6 weeks of formula only, no food except clear fluids) and has continued EN as his maintenance (1/2 dose, 5 nights/wk, plus all foods added back).
You can ingest the formula either through naso-gastric tube or orally. My son uses an NG tube - very quickly inserts tube (10 seconds at most), ingests the formula overnight. He had lost approx. 25 lbs before diagnosis and regained that plus more on EN.
I've attached a link to a thread entitled Kids on EN (includes some history on my son with more detail) -
http://www.crohnsforum.com/showthread.php?t=36345
You'll also find info on EN on the Enteral Nutrition subforum, under Treatment -
http://www.crohnsforum.com/forumdisplay.php?f=161
While this may be the 'exception', I have a friend whose daughter also has crohns, was quite sick last summer, in the hospital for weeks and was also facing surgery; to prepare her for surgery and help regain some weight and strength, she was put on EN for six weeks. The intent was never to avoid surgery as it seemed unavoidable... but, after the six weeks, she healed enough that she did avoid surgery, instead beginning remicade and has since been in remission.
I defintely do feel EN would be worth trying, if your son is able. But, no question, to avoid food for two months is certainly a challenging treatment.
One note, while I'm not 100% certain of this, I'm not sure that Ensure (in the U.S., the UK has a different Ensure formula) is a 'true' EN formula. It may provide the nutritional benefits but perhaps not the anti-inflammatory properties, etc. My son is on Tolerex (but it is not drinkable) and I believe Peptamin and Modulen (drinkable) are specifically formulated for EN (there are others, just aren't coming to mind now...). Perhaps ask your son's GI and/or look through the subforum here for more info. If your son is going to make the effort and sacrifice, it would be a shame that he doesn't get the full benefit of the treatment simply because of the choice of formula.
I hope your son begins to feel better and you get more options at the Cleveland Clinic.
And, as Farmwife mentioned, please drop by the Parents of Kids w/IBD forum - lots of very knowledgeable, friendly and supportive parents who understand your worries! :ghug: