Asciminib and Inotuzumab Ozogamicin for Relapsed or Refractory Philadelphia Chromosome-positive B-cell Acute Lymphoblastic Leukemia (R/R Ph+ B-ALL)

This study will test a combination of two drugs for people with Philadelphia chromosome-positive B-cell acute lymphoblastic leukemia (Ph-positive B-ALL), a fast-growing blood cancer. Asciminib is a targeted oral drug that is FDA-approved for chronic myeloid leukemia, but is not FDA-approved for Ph-positive B-ALL. Inotuzumab ozogamicin (also called Besponsa) is an FDA-approved treatment that uses an antibody (a protein) to deliver a small amount of chemotherapy directly to leukemia cells. It is commonly used when leukemia has come back after earlier treatment (relapsed) or has not improved with treatment (refractory). This study aims to find the safest dose of asciminib when it is given together with inotuzumab ozogamicin. The goal is to see whether this combination can provide a more effective and better tolerated treatment option for people whose leukemia has returned or has not responded to previous therapies.