Active clinical trials for "Plasmacytoma"

RATIONALE: Giving chemotherapy drugs and total-body irradiation 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. Giving colony-stimulating factors, such as G-CSF, to the donor helps the stem cells move from the bone marrow to the blood so they can be collected and stored. PURPOSE: This clinical trial is studying how well a G-CSF-treated donor bone marrow transplant works in treating patients with hematologic cancer or noncancer.

RATIONALE: Giving chemotherapy and total-body irradiation before a donor umbilical cord blood 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 tacrolimus and mycophenolate mofetil before and after transplant may stop this from happening. PURPOSE: To look at the ability of umbilical cord blood cells from one or two unrelated donors to serve as a source of stem cells for people needing a bone marrow transplant.

RATIONALE: Vorinostat and bortezomib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Bortezomib may also stop the growth of multiple myeloma by blocking blood flow to the tumor. Drugs used in chemotherapy, such as doxorubicin hydrochloride liposome, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Giving doxorubicin hydrochloride liposome together with vorinostat and bortezomib may kill more cancer cells. PURPOSE: This phase I trial is studying the side effects and best dose of vorinostat and to see how well it works when given together with bortezomib and doxorubicin hydrochloride liposome in treating patients with relapsed or refractory multiple myeloma.

RATIONALE: Drugs used in chemotherapy work in different ways to stop the growth of plasma cells, either by killing the cells or by stopping them from dividing. Having a peripheral stem cell transplant to replace the blood-forming cells destroyed by chemotherapy, allows higher dose of chemotherapy to be given so that more plasma cells are killed. Giving a chemoprotective drug such as amifostine may protect kidney cells from the side effects of chemotherapy. PURPOSE: This phase I trial is studying the side effects and best dose of melphalan given together with amifostine in treating patients who are undergoing peripheral stem cell transplant for primary systemic amyloidosis.

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. PURPOSE: Phase II trial to study the effectiveness of combining arsenic trioxide and dexamethasone in treating patients who have recurrent or refractory stage II or stage III multiple myeloma.

RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Tretinoin may help hematologic cancer cells develop into normal white blood cells. PURPOSE: Phase I/II trial to study the effectiveness of arsenic trioxide with or without tretinoin in treating patients who have hematologic cancer that has not responded to previous therapy.

RATIONALE: Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing or die. PURPOSE: This phase I trial is studying the side effects and best dose of 12-O-tetradecanoylphorbol-13-acetate in treating patients with hematologic cancer or bone marrow disorder that has not responded to previous treatment.

RATIONALE: Bone marrow transplantation may be able to replace immune cells that were destroyed by chemotherapy or radiation therapy used to kill tumor cells. Sometimes the transplanted cells from a donor can make an immune response against the body's normal cells. Eliminating the T cells from the donor cells before transplanting them may prevent this from happening. PURPOSE: Phase II trial to study the effectiveness of T cell removal to prevent graft-versus-host disease in patients who are undergoing bone marrow transplantation from a donor.

Patients with previously treated multiple myeloma and kidney dysfunction will be treated with lenalidomide and low-dose dexamethasone. Phase I will study the side effects and best dose of lenalidomide when given together with low-dose dexamethasone therapy. After the maximum safe and tolerated dose is found in Phase I, the study will proceed to Phase II. Phase II will study how well the the treatment works in patients with previously treated (relapsed or refractory) multiple myeloma and kidney dysfunction. Biological therapies, such as lenalidomide, may stimulate the immune system in different ways and stop cancer cells from growing. Drugs used in chemotherapy, such as dexamethasone, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Giving lenalidomide together with dexamethasone may kill more cancer cells. Lenalidomide and dexamethasone may have different effects in patients who have changes in their kidney function.

RATIONALE: Green tea extract contains ingredients that may prevent or slow the growth of monoclonal gammopathy of undetermined significance and/or smoldering multiple myeloma. PURPOSE: This phase II trial is studying how well green tea extract works in treating patients with monoclonal gammopathy of undetermined significance and/or smoldering multiple myeloma.