A Randomized Phase II Study Comparing Inotuzumab Plus Chemotherapy Versus Standard Chemotherapy in Older Adults With Philadelphia-Chromosome-Negative B-Cell Acute Lymphoblastic Leukemia

This phase II trial compares the combination of inotuzumab ozogamicin and chemotherapy to the usual chemotherapy in treating patients with B-cell acute lymphoblastic leukemia or B-cell lymphoblastic lymphoma. Inotuzumab ozogamicin is a monoclonal antibody, called inotuzumab, linked to a drug, called CalichDMH. Inotuzumab is a form of targeted therapy because it attaches to specific molecules (receptors) on the surface of cancer cells, known as CD22 receptors, and delivers CalichDMH to kill them. Chemotherapy drugs work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving inotuzumab ozogamicin with chemotherapy may help shrink the cancer and stop it from returning.