• Guido Lancman, Suzanne Arinsburg, Jeffrey Jhang, Hearn Jay Cho, Sundar Jagannath, Deepu Madduri, Samir Parekh, Joshua Richter, and Ajai Chari.
• Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States.
• Front Immunol. 2018 Jan 1; 9: 2616.

AbstractDaratumumab has proven to be highly efficacious for relapsed and refractory multiple myeloma (MM) and has recently been approved in the frontline setting for MM patients ineligible for transplantation. In the future, expanded indications are possible for daratumumab and other anti-CD38 monoclonal antibodies in development. For several years, it has been recognized that these therapies interfere with blood bank testing by binding to CD38 on red blood cells and causing panagglutination on the Indirect Antiglobulin Test. This can lead to redundant testing and significant delays in patient care. Given the anticipated increase in utilization of anti-CD38 monoclonal antibodies, as well as the transfusion needs of MM patients, it is critical to understand the nature of this interference with blood bank testing and to optimize clinical and laboratory procedures. In this review, we summarize the pathophysiology of this phenomenon, examine the clinical data reported to date, describe currently available methods to resolve this issue, and lastly provide a guide to clinical management of blood transfusions for patients receiving anti-CD38 monoclonal antibodies.

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