Myeloid Sarcoma

This phase II trial studies how well dexrazoxane hydrochloride works in preventing heart-related side effects of chemotherapy in participants with blood cancers, such as acute myeloid leukemia, myelodysplastic syndrome, chronic myeloid leukemia, and myeloproliferative neoplasms. Chemoprotective drugs, such as dexrazoxane hydrochloride, may protect the heart from the side effects of drugs used in chemotherapy, such as cladribine, idarubicin, cytarabine, and gemtuzumab ozogamicin, in participants with blood cancers.

Ziftomenib is an investigational drug in development for the treatment of patients with acute myeloid leukemia (AML) with certain genetic alterations. This protocol has 3 separate arms that will investigate the benefits and risks of adding ziftomenib to standard-of-care (SOC) drug treatments in patients who have AML with certain genetic mutations. Both newly diagnosed and relapsed refractory patients with AML will be assigned to different cohorts based on specific study criteria and physician discretion. The purpose of this study is to assess the safety, tolerability, and early signs of efficacy of ziftomenib in combination with SOC drugs to treat AML.

The mitoxantrone liposomal enhances the tissue permeability of mitoxantrone by incorporating liposomal groups compared to the conventional mitoxantrone formulation, while also reducing the concentration of free mitoxantrone, thereby minimizing drug side effects-particularly cardiotoxicity. Building upon this, the investigators aim to investigate the efficacy and safety of the liposomal mitoxantrone hydrochloride injection in patients with secondary AML, AML with extramedullary involvement, or myeloid sarcoma, in order to explore alternative therapeutic strategies for these populations.

This study is a multicenter, single-arm, prospective phase II clinical trial that evaluates the efficacy and safety of an intensive conditioning regimen with thiotepa combined with busulfan, fludarabine, and cytarabine for allogeneic hematopoietic stem cell transplantation in the treatment of myeloid malignancies with extramedullary involvement. The conditioning regimen includes thiotepa at a dose of 5mg/kg/d from d -9 to d -8 (2 days), fludarabine at 30mg/m2/d from d -7 to d -3 (5 days), cytarabine at 1-1.5g/m2/d from d -7 to d -3 (5 days), and busulfan at 3.2mg/kg/d from d -5 to d -3 (3 days). Conditioning begins on day -9, and donor hematopoietic stem cell infusion is performed on day 0. All patients will undergo bone marrow examination on day 14 and day 28 post-transplant, followed by bone marrow examinations every 30 days within the first year after transplantation, and every 60 days within the second year after transplantation. If disease relapse is suspected during the follow-up period, bone marrow or extramedullary relapse site examinations will be conducted at any time. The primary study endpoints are the 1-year and 2-year progression-free survival (PFS) rates post-transplant. Secondary study endpoints include the incidence of acute graft-versus-host disease (GVHD) within 180 days post-transplant, cumulative relapse rates at 1 year and 2 years post-transplant, 1-year and 2-year overall survival (OS), graft-versus-host disease-free, relapse-free survival (GRFS), non-relapse mortality (NRM), cumulative incidence of chronic GVHD, and the incidence of Cytomegalovirus （CMV）and Epstein-Barr virus（EBV）reactivation within 1 year.