Active clinical trials for "Leukemia, Myeloid, Acute"

The purpose of this study is to determine the safety of parathyroid hormone in combination with G-CSF when used as a stem cell mobilization regimen for patients who fail to mobilize sufficient progenitor stem cells after one or two attempts.

RATIONALE: Giving chemotherapy, such as fludarabine phosphate, busulfan, and cyclophosphamide, and total-body radiation therapy before a donor peripheral stem cell transplant helps stop the growth of cancer cells. It may also stop the patient's immune system from rejecting the donor's stem cells. When the healthy stem cells from a donor are infused into the patient they may help the patient's bone marrow make stem cells, red blood cells, white blood cells, and platelets. It is not yet known whether low-dose chemotherapy and total-body radiation therapy is more effective than high-dose chemotherapy in treating patients with myelodysplastic syndrome or acute myeloid leukemia. PURPOSE: This phase III trial is studying low-dose conditioning to see how well it works compared to high-dose conditioning followed by peripheral blood stem cell transplant in treating patients with myelodysplastic syndromes or acute myeloid leukemia

5-aza is a chemotherapy drug with activity in leukemia and myelodysplastic syndromes (MDS). Researchers hope that valproic acid (VPA) and all-trans retinoic acid (ATRA)will increase the effects of 5-aza. The goal of this clinical research study is to find the highest safe dose of valproic acid (VPA) that can be given in combination with 5-azacytidine (5-aza) and all-trans retinoic acid (ATRA) in the treatment of AML and MDS. The safety and effectiveness of this combination therapy will also be studied. Additional blood and bone marrow samples will be requested. These samples will be used to evaluate the effect of the treatment on leukemic cells. In addition, any leftover blood and bone marrow samples that are collected at the start of the study and during the regularly scheduled evaluations to be sent for research studies. The research studies will examine changes in the blood and bone marrow cells that might help explain the causes of leukemia and MDS and how the combination of 5-aza, VPA, and ATRA works.

This is a new platform in non-myeloablative allogeneic stem cell transplantation to improve survival by harnessing the immunologic potential of donor T-cells to induce and maintain long-term remissions in patients with hematologic malignancies without undue toxicity. This study involves is the first study in humans directed at optimizing the graft vs leukemia effect by infusing activated T-cells from healthy donors prophylactically, months after recovery from the initial transplant. Investigators are studying whether the activation of donor cells prior to infusion will enhance the patient's ability to "seek and destroy" residual malignant cells while also helping the immune system to fight infection without increasing the immune reaction against the host.

The purpose of this study is to compare Reduced Intensity Conditioning protocols containing either Thymoglobuline or Alemtuzumab in patients undergoing allogeneic transplant from voluntary unrelated donors.

The study was set up to assess: A two-step, increasing-intensity remission induction phase. A conventional chemotherapy course (ICE, plus G-CSF) was followed, in unresponsive patients, by sequential high-dose cytarabine (plus G-CSF), aiming to provide an early effective rescue to as many refractory cases as possible. A risk-oriented postremission consolidation phase. The objective was to adopt allogeneic stem cell transplantation (alloSCT) in high-risk (HR) cases, while standard-risk (SR) ones were consolidated with a multicycle high-dose cytarabine-containing program, which included the use of autologous stem cells plus G-CSF to limit drug-related toxicity and intercycle treatment delays.

Chemotherapy drugs use different ways to stop cancer cells from dividing so they stop growing or die. Zosuquidar may help daunorubicin and cytarabine kill more cancer cells by making cancer cells more sensitive to the drugs. It is not yet known whether daunorubicin and cytarabine are more effective with or without zosuquidar in treating acute myeloid leukemia.

Drugs used in chemotherapy, such as cytarabine, work in different ways to stop cancer cells from dividing so they stop growing or die. 3-AP may help cytarabine kill more cancer cells by making them more sensitive to the drug. This phase I trial is studying the side effects and best dose of 3-AP when given with high-dose cytarabine in treating patients with advanced hematologic malignancies

This phase I trial is studying the side effects and best dose of 17-N-allylamino-17-demethoxygeldanamycin in treating young patients with relapsed or refractory solid tumors or leukemia. Drugs used in chemotherapy, such as 17-N-allylamino-17-demethoxygeldanamycin, work in different ways to stop cancer cells from dividing so they stop growing or die.

This phase II trial studies the side effects and the best dose of alemtuzumab when given together with fludarabine phosphate and low-dose total body irradiation (TBI) and how well it works before donor stem cell transplant in treating patients with hematological malignancies. Giving chemotherapy and low-dose TBI before a donor peripheral blood stem cell transplant helps stop the growth of cancer cells. It may also stop the patient's immune system from rejecting the donor's stem cells. Also, monoclonal antibodies, such as alemtuzumab, can find cancer cells and either kill them or deliver cancer-killing substances to them without harming normal cells. When the healthy stem cells from a donor are infused into the patient they may help the patient's bone marrow make stem cells, red blood cells, white blood cells, and platelets. Sometimes the transplanted cells from a donor can also make an immune response against the body's normal cells. Giving cyclosporine (CSP) and mycophenolate mofetil (MMF) after transplant may stop this from happening.