Darla, my dear, I think you need a new doctor. Or at least a second opinion. Standard practice is to start you on one of the 5-ASA drugs orally and rectally. Usually Rowasa enemas and Asacol, although some docs are reluctant to prescribe enemas because some people don't like them and won't use them. If the Asacol doesn't help, they'll usually try Colazal or Pentasa, or maybe Sulfasalazine. If none of these work, they will often add in an immunosuppressant such as Azathioprine or 6-MP. If those don't work, there are the biologicals, Remicade and Humira (I think these are no longer provided under the UK NHS, but not sure.)
It's standard for all of the above treatments to be considered before moving to investigational drugs. If your doc isn't willing to try anything except Pred, he's either incompetent or far to intent on getting subjects for his research.
Ulcerative colitis forum co-moderator
Moderate to severe left-sided UC diagnosed 2001.
Flared for 5 years, finally in remission with Remicade since March 2006.
Avascular necrosis in both shoulders is my "forever" gift from steroids.
Colazal, Remicade, Nature's Way Primadophilus Reuteri.
"My life is an ongoing medical adventure"