In Reply to Best Practice for Induction of Immunosuppression in Patients Treated With Daratumumab Is to Be Determined

We agree with the points made by Drs Amer and Leung: optimal induction immunosuppression for patients receiving daratumumab is not known, over-immunosuppression is best avoided in myeloma patients owing to increased risk of infection, and selection of immunosuppression for unique subpopulations is best guided by rigorous protocols in large populations.1 We acknowledge that our case neither proves that daratumumab caused acute cellular rejection (ACR), nor does it mandate the use of lymphocyte depletion for patients receiving daratumumab prior to kidney transplantation.