Active clinical trials for "Leukemia"

RATIONALE: Giving low doses of chemotherapy, such as fludarabine and busulfan, before a donor bone marrow or peripheral blood stem cell transplant helps stop the growth of cancer cells. It also stops the patient's immune system from rejecting the donor's stem cells. The donated stem cells may replace the patient's immune system and help destroy any remaining cancer cells (graft-versus-tumor effect). Giving an infusion of the donor's T cells (donor lymphocyte infusion) after the transplant may help increase this effect. Sometimes the transplanted cells from a donor can also make an immune response against the body's normal cells. Giving immunosuppressive therapy after the transplant may stop this from happening. PURPOSE: This phase II trial is studying how well donor bone marrow or peripheral stem cell transplant works in treating patients with relapsed hematologic cancer after treatment with chemotherapy and autologous stem cell transplant.

Phase I trial to study the effectiveness of PS-341 in treating patients who have refractory or relapsed acute myeloid leukemia, acute lymphoblastic leukemia, chronic myeloid leukemia in blast phase, or myelodysplastic syndrome. PS-341 may stop the growth of cancer cells by blocking the enzymes necessary for cancer cell growth

Phase I trial to study the effectiveness of augmerosen plus fludarabine and cytarabine in treating patients who have refractory or relapsed acute myeloid leukemia or acute lymphoblastic leukemia. Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing or die. Gene therapy such as augmerosen may make cancer cells more sensitive to chemotherapy drugs. Combining more than one drug with augmerosen may kill more cancer cells.

RATIONALE: Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing or die. Combining chemotherapy with donor bone marrow transplantation may allow the doctor to give higher doses of chemotherapy drugs and kill more cancer cells. PURPOSE: Phase II trial to study the effectiveness of busulfan and cyclophosphamide followed by bone marrow transplantation in treating patients who have acute myelogenous leukemia or myelodysplastic syndrome.

RATIONALE: Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing and die. Bone marrow transplantation may be able to replace cells that were destroyed by chemotherapy. Colony-stimulating factors such as filgrastim may increase the number of immune cells found in bone marrow or peripheral blood and may help a person's immune system recover from the side effects of chemotherapy. PURPOSE: Phase II trial to study the effectiveness of chemotherapy plus bone marrow transplantation and filgrastim in treating patients who have acute myelogenous leukemia or myelodysplastic syndrome.

RATIONALE: Peripheral stem cell transplantation may be able to replace immune cells that were destroyed by chemotherapy and radiation therapy used to kill tumor cells. PURPOSE: Phase I trial to study the effectiveness of treated donor stem cell transplantation in treating patients who have hematologic cancer.

RATIONALE: Imatinib mesylate may interfere with the growth of cancer cells and may be an effective treatment for leukemia. PURPOSE: Phase I trial to study the effectiveness of imatinib mesylate in treating patients who have recurrent leukemia.

RATIONALE: Peripheral blood lymphocyte therapy may be effective in the treatment and prevention of Epstein-Barr virus infection following transplantation. PURPOSE: Phase II trial to study the effectiveness of peripheral blood lymphocyte therapy in treating and preventing lymphoproliferative disorders in patients who have Epstein-Barr virus infection following transplantation.

This phase II trial is studying imatinib mesylate to see how well it works in treating patients with chronic myelogenous leukemia. Imatinib mesylate may stop the growth of cancer cells by blocking the enzymes necessary for cancer cell growth

To determine the safety and efficacy of decitabine in patients with Philadelphia chromosome-positive chronic myelogenous leukemia accelerated phase that were previously treated with imatinib mesylate (STI 571) and became resistant/refractory or were found to be intolerant to the drug.