Active clinical trials for "Plasmacytoma"

RATIONALE: Zoledronate may prevent bone loss and stop the growth of cancer cells in bone. Thalidomide may stop the growth of cancer cells by blocking blood flow to the cancer. It is not yet know whether giving zoledronate together with thalidomide is more effective than zoledronate alone in treating multiple myeloma. PURPOSE: This randomized phase III trial is studying zoledronate and thalidomide see how well they work compared with zoledronate alone in treating patients with early stage multiple myeloma.

RATIONALE: Drugs used in chemotherapy, such as melphalan and dexamethasone, work in different ways to stop the growth of plasma cells, either by killing the cells or by stopping them from dividing. Having an autologous stem cell transplant to replace the blood-forming cells destroyed by chemotherapy, allows higher doses of chemotherapy to be given so that more plasma cells are killed. By reducing the number of plasma cells, the disease may progress more slowly. It is not yet known whether combination chemotherapy is more effective than chemotherapy followed by an autologous stem cell transplant in treating primary systemic amyloidosis. PURPOSE: This randomized phase III trial is studying the side effects and how well giving low-dose melphalan together with dexamethasone works compared with high-dose melphalan followed by an autologous stem cell transplant in treating patients with primary systemic amyloidosis.

RATIONALE: Pemetrexed disodium may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Studying samples of cerebrospinal fluid and blood from patients with cancer in the laboratory may help doctors learn how pemetrexed disodium works in the body and identify biomarkers related to cancer. PURPOSE: This clinical trial is studying the side effects and how well pemetrexed disodium works in treating patients with leptomeningeal metastases.

RATIONALE: Giving low doses of chemotherapy, such as busulfan and fludarabine, before a donor stem cell transplant helps stop the growth of cancer and abnormal cells. It also helps 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 or abnormal cells (graft-versus-tumor effect). Sometimes the transplanted cells from a donor can also make an immune response against the body's normal cells. Immunosuppressive therapy may improve bone marrow function and may be an effective treatment for hematologic cancer or other disease. PURPOSE: This clinical trial is studying the side effects and how well giving busulfan and fludarabine with or without antithymocyte globulin followed by donor stem cell transplant works in treating patients with hematologic cancer or other disease.

This phase I trial studies the side effects and the best dose of sunitinib malate in treating human immunodeficiency virus (HIV)-positive patients with cancer receiving antiretroviral therapy. Sunitinib malate may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth and by blocking blood flow to the tumor.

RATIONALE: Giving chemotherapy, such as fludarabine, busulfan, and etoposide, before a donor umbilical cord blood stem cell transplant helps stop the growth of cancer 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 antithymocyte globulin before transplant and tacrolimus and prednisone after transplant may stop this from happening. PURPOSE: This phase I trial is studying how well donor umbilical cord blood transplant works in treating patients with advanced hematologic cancer.

RATIONALE: Drugs used in chemotherapy, such as fluphenazine, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. PURPOSE: This phase I/II trial is studying the side effects and best dose of fluphenazine and to see how well it works in treating patients with refractory advanced multiple myeloma.

RATIONALE: Bortezomib may stop the growth of cancer cells by blocking the enzymes necessary for their growth. Giving bortezomib as maintenance therapy after autologous stem cell transplantation may kill more cancer cells and prolong remission. PURPOSE: This phase I/II trial is studying the side effects and best dose of adjuvant bortezomib as maintenance therapy and to see how well it works in treating patients who have undergone stem cell transplantation for intermediate or advanced multiple myeloma.

RATIONALE: 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. Bortezomib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Giving doxorubicin hydrochloride liposome together with bortezomib may kill more cancer cells. PURPOSE: This phase I/II trial is studying the side effects and best dose of bortezomib when given together with doxorubicin hydrochloride liposome and to see how well they work in treating patients with refractory hematologic cancer or malignant solid tumor or metastatic breast cancer.

RATIONALE: Monoclonal antibodies, such as rituximab, 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 carry cancer-killing substances to them. Drugs used in chemotherapy, such as cyclophosphamide, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Giving rituximab together with cyclophosphamide may kill more cancer cells. PURPOSE: This phase II trial is studying how well giving rituximab together with cyclophosphamide works in treating patients with high risk, refractory, or relapsed multiple myeloma.