Active clinical trials for "Plasmacytoma"

RATIONALE: Giving chemotherapy, such as melphalan and busulfan, before a donor peripheral blood stem cell transplant helps stop the growth of cancer cells. It also 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 tacrolimus and methotrexate before or after transplant may stop this from happening. PURPOSE: This phase II trial is studying how well giving melphalan together with busulfan followed by donor peripheral stem cell transplant, tacrolimus, and methotrexate works in treating patients with multiple myeloma.

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 antithymocyte globulin before transplant and methotrexate and tacrolimus after the transplant may stop this from happening. PURPOSE: This phase I trial is studying the side effects of donor stem cell transplant in treating older or frail patients with hematologic cancer.

RATIONALE: Biological therapies, such as a dendritic cell vaccine made with a patient's cancer cells, may stimulate the immune system in different ways and stop cancer cells from growing. PURPOSE: This phase I/II trial is studying the side effects of dendritic cell vaccine and to see how well it works in treating patients with indolent B-cell lymphoma or multiple myeloma.

This randomized pilot clinical trial studies how well giving prolonged infusion compared to standard infusion of cefepime hydrochloride works in treating patients with febrile neutropenia. Giving cefepime hydrochloride over a longer period of time may be more effective than giving cefepime hydrochloride over the standard time.

RATIONALE: Drugs used in chemotherapy, such as arsenic trioxide and dexamethasone, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Ascorbic acid may help arsenic trioxide work better by making cancer cells more sensitive to the drug. Bortezomib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Thalidomide may stop the growth of cancer cells by stopping blood flow to the cancer. Giving arsenic trioxide and ascorbic acid together with bortezomib, thalidomide, and dexamethasone may stop the growth of and kill more cancer cells. PURPOSE: This phase I trial is studying the side effects and best dose of arsenic trioxide when given together with ascorbic acid, bortezomib, thalidomide, and dexamethasone in treating patients with relapsed or refractory multiple myeloma or plasma cell leukemia.

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.

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. Deoxycytidine may protect patients from the side effects of high-dose cytarabine. PURPOSE: Phase I trial to study the effectiveness of high-dose cytarabine given with deoxycytidine in treating patients who have refractory acute myelogenous leukemia or other lymphoma or leukemia.

RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining chemotherapy with bone marrow or peripheral stem cell transplantation may allow the doctor to give higher doses of chemotherapy drugs and kill more tumor cells. PURPOSE: Phase II trial to study the effectiveness of combination chemotherapy followed by bone marrow or peripheral stem cell transplantation in treating patients with multiple myeloma.

RATIONALE: Interleukin-12 may kill tumor cells by stopping blood flow to the tumor and by stimulating a person's blood cells to kill multiple myeloma cells. PURPOSE: Randomized phase II trial to compare the effectiveness of interleukin-12 given at different times in treating patients with multiple myeloma.