What does this procedure involve?

Autologous hematopoietic stem cell transplant (aHSCT) for highly active multiple sclerosis begins with harvesting your own stem cells from blood or bone marrow. You then receive high-dose chemotherapy to suppress the immune system, followed by reinfusion of the stem cells to rebuild a new, tolerant immune system. The entire process typically requires a 4- to 6-week hospital stay in a specialized stem cell therapy unit.