Hi Jan... i actually had been wondering about you/your husband prior to reading this. I was away for the weekend but just saw your message.
The question i can answer for you is - yes, you can absolutely use Velcade for a long time, if it is working. My dad just hit his two year anniversary mark with the MM - and has had Velcade for TWO YEARS, non-stop. He has never been off it and it literally was his life-saver and he is still going strong. First it was just Velcade & Dex, then for a while just Velcade alone, and now for the past six months it has been Velcade + Dex + Thalidomide. He is still stable and has very good numbers. No remission though... he has never reached remission for whatever reason but has been just 'points away' most of the time. IGA usually anywhere from 100 to 150, going up and/or down occasionally in that range.
Everyone is different, and i guess it depends on the patients age, overall health, and the doctor, etc about dosage and treatment plans... but from what i've learned on this board... i think most don't stop - unless they are in remission... and even with that, i think they still usually take something for 'maintenance'. Is your husband in remission, or just stable like my father?
My dad for most of the course has gotten Velcade once a week, for four weeks in a row, and then usually has two or three weeks off. Then goes back and starts the cycle again, and so on, and so on... He is almost 80 years old and in the beginning he was so sick & in so much pain, we decided that twice a week would be too much for him, and then just continued with the once a week since it's been working well for him.
You should be able to get a lot of mileage out of the Velcade. Since it's been two years now, i worry that it's going to stop working for my dad.
Have a chat with your doctor... and chat with some others on this board before you do so. Please keep me up to date & good luck. Write again if you need anything else we might be able to help with.
Deb