What is prosorba column therapy and is it effective in treatment of rheumatoid arthritis?

Yes: Prosorba therapy was approved by fda back in 1999 for the treatment of ra. It was not a first line therapy, though. It used a tube loaded with protein a, which served as a binder to attach itself to circulating antibodies in the patient's plasma. About 40% of patients that didn't respond to conventional treatment responded to prosorba. Unfortunately, the maker of it is no longer on the market.

Blood filtering, ?: Prosorba column apheresis is a method of filtering your blood to remove antibodies that contribute to RA symptoms. It was used only in patients who did not respond to other treatments and did have some benefit. However I do not think it is still available as production was discontinued in 2006. Newer drugs seem to be more effective. You should discuss this with your arthritis doctor.

Yes: It is an older therapy used to treat advanced rhuematoid arthritis. Also called extracorporeal immunoadsorption.