Study on the Effect of Ibrutinib on High Risk Smoldering Multiple Myeloma Patients

"Ibrutinib is a type of drug called a kinase inhibitor. Kinases are proteins inside cells that help cells live and grow. Ibrutinib blocks a specific kinase protein in our bodies. This protein is thought to be very important in helping blood cancer cells live and grow. By blocking this kinase protein, ibrutinib stops cancer cells from growing."