Decades of Progress in Allogeneic Stem Cell Transplantation for Multiple Myeloma

Abstract

Allogeneic hematopoietic cell transplantation in multiple myeloma has evolved over the decades. Myeloablative regimens have been replaced by the reduced intensity and non-myeloablative conditionings to reduce treatment-related toxicity and mortality while sparing graft-vs.-myeloma effects. Newer agents with potent anti-myeloma activity are not mutually exclusive and the combination with an allograft may improve long-term outcomes in this incurable disease especially in high-risk patients. Allografting may also be a platform for other promising new cell therapies such as CAR T-cells, NK-, and CAR NK-cells. These studies are warranted in the context of clinical trials. This review highlights the progress that has been made over the decades and possible future roles of allografting in the treatment landscape of multiple myeloma