A Pilot Trial Using Isatuximab to Overcome Platelet Transfusion Refractoriness in Human Leukocyte Antigen Allo-Immunized Patients (SuppCare 001)

Some of the treatments for cancer can cause platelets (the part of the blood that helps with clotting) to decrease. If they are too low, then clinicians may recommend a transfusion (getting platelets from another person added to someone else's body). This usually works to increase the person's platelets to a healthy level, but sometimes it doesn't work. This is called platelet refractoriness. This study is trying to find out whether isatuximab (the study drug) may help people with a certain type of platelet refractoriness by removing some cells in order to make platelet transfusions more effective.