Active clinical trials for "Myeloproliferative Disorders"

RATIONALE: Giving chemotherapy before a donor bone marrow transplant helps stop the growth of cancer and abnormal cells and helps 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. Sometimes the transplanted cells from a donor can make an immune response against the body's normal cells. Giving cyclophosphamide, mycophenolate mofetil, or tacrolimus after transplant may stop this from happening. PURPOSE: This clinical trial is studying how well giving combination chemotherapy together with tacrolimus and mycophenolate mofetil works in treating patients who are undergoing a donor bone marrow transplant for hematologic cancer.

The purpose of this study is to determine whether a less-intensive preparative therapy followed by an allogeneic peripheral stem cell transplantation will provide an effective treatment for your disease and whether it will be associated with fewer side effects.

This phase II trial studies pentostatin and donor lymphocyte infusion in preventing graft rejection in patients who have undergone donor stem cell transplant. Giving pentostatin and an infusion of the donor's T cells (donor lymphocyte infusion) after a donor stem cell transplant may stop the patient's immune system from rejecting the donor's stem cells. The donated stem cells may replace the patient's immune cells and help destroy any remaining cancer cells (graft-versus-tumor effect). Sometimes the transplanted cells from a donor can also make an immune response against the body's normal cells. Giving pentostatin before donor lymphocyte infusion may stop this from happening.

RATIONALE: Umbilical cord blood transplantation may be able to replace immune cells that were destroyed by the chemotherapy or radiation therapy that was used to kill cancer cells. PURPOSE: Phase II trial to study the effectiveness of allogeneic umbilical cord blood transplantation in treating patients who have leukemia, lymphoma, or nonmalignant hematologic disorders.

RATIONALE: Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing or die. Combining more than one drug may kill more cancer cells. White blood cells from donors may be able to kill cancer cells in patients who have hematologic cancer that has recurred following bone marrow transplantation. PURPOSE: Phase I trial to study the effectiveness of combination chemotherapy plus infusion of donated white blood cells in treating patients who have hematologic cancer that has recurred after bone marrow transplantation.

RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining more than one drug may kill more tumor cells. PURPOSE: Phase I trial to study the effectiveness of combining topotecan, fluorouracil, and leucovorin in treating patients who have advanced cancer.

RATIONALE: Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing or die. Radiation therapy uses high-energy x-rays to damage cancer cells. Combining chemotherapy and radiation therapy together with bone marrow transplant may allow the doctor to give higher doses of chemotherapy drugs and kill more cancer cells. PURPOSE: This phase II trial is studying how well giving bone marrow transplant from an unrelated donor together with cyclophosphamide and total-body irradiation works in treating patients with hematologic cancer.

RATIONALE: Monoclonal antibodies, such as bevacizumab, can block cancer growth in different ways. Some block the ability of cancer cells to grow and spread. Others find cancer cells and help kill them or deliver cancer-killing substances to them. PURPOSE: This phase I/II trial is to see if bevacizumab works in treating patients who have myelodysplastic syndrome.

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.

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.