New Member-Vizsal with Severe IBD

I am joining this forum to hopefully seek advice for my three year old Vizsla, Moose. He was diagnosed with severe Inflammatory Bowel Disease six weeks ago and has not responded to any medications or treatments. We are working with multiple Internal Medicine Specialists in our area but as time goes on, his condition is worsening and his life is at risk. I am desperate to get some advice that could help save his life. He is currently on Cyclosporine, Predisone injections and a selected protein diet.