Monoclonal antibodies

Monoclonal antibodies are synthetic proteins which mimic natural antibodies and are engineered to target specific antigens on the surface of myeloma cells. They work to kill myeloma cells either by triggering the immune system to destroy and remove them or by delivering a cytotoxic substance. They can also be engineered to target and block the actions of proteins e.g. growth factors, needed for myeloma cell growth and survival.

Daratumumab (Darzalex®) was the first monoclonal antibody approved for use in the UK (discussed in Module 5). A similar CD38 binding drug which recently entered the myeloma space is CID-103, currently in early phase clinical trials for relapsed/refractory myeloma.

Further reading

Wudhikarn et al. (2020) Monoclonal Antibodies in Multiple Myeloma: Current and Emerging Targets and Mechanisms of Action. Best Pract Res Clin Haematol. 2020 Mar; 33(1): 101143.