Hey Dai, seems like we are on the starting blocks together, though not on the same track! I've just been informed by my Consultant at Wolverhampton that I've been accepted on the Pomalidamide trial too. Now waiting to sign the papers but thankfully I haven't got to undergo another bone marrow biopsy as I had one recently ( the doctor who did it hit my sciatic nerve, ahhhhhhh), and I have had a recent PET scan which clearly showed how active the MM is!
I have had type 2 diabetes since before MM came along, and although I was taken off oral meds as lifestyle changes brought my blood sugars back to normal, the Dex kicked them back into touch. So I now monitor my blood sugar levels and increase my oral anti glycemic medication to keep my sugars in check on the Dex days. In the scheme of things it's no big deal, lol.
So good luck and fingers crossed that you don't get that pesky C diff back.
As we say up here in the Black Country
Mind the 'hoss rowd
Elaine