Active clinical trials for "Plasmacytoma"

RATIONALE: Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing or die. Thalidomide may stop the growth of cancer by stopping blood flow to the tumor. Combining dexamethasone and thalidomide may kill more cancer cells. It is not yet known whether dexamethasone is more effective with or without thalidomide in treating multiple myeloma. PURPOSE: Randomized phase III trial to determine the effectiveness of dexamethasone with or without thalidomide in treating patients who have multiple myeloma.

RATIONALE: Drugs used in chemotherapy work in different ways to stop cancer cells from dividing so they stop growing or die. Thalidomide may stop the growth of cancer by stopping blood flow to the tumor. Combining chemotherapy with thalidomide may kill more cancer cells. PURPOSE: Phase II trial to study the effectiveness of combination chemotherapy and thalidomide in treating patients who have newly diagnosed stage I, stage II, or stage III multiple myeloma.

RATIONALE: Peripheral stem cell transplantation may be able to replace immune cells that were destroyed by the chemotherapy or radiation therapy used to kill tumor cells. Sometimes the transplanted cells are rejected by the body's normal tissues. Transplanting donated cells that have been treated with psoralen may prevent this from happening. PURPOSE: Phase I trial to study the effectiveness of chemotherapy, radiation therapy, and psoralen-treated donor cells in treating patients who are undergoing peripheral stem cell transplantation for hematologic cancer.

RATIONALE: SU5416 may stop the growth of multiple myeloma by stopping blood flow to the cancer cells. PURPOSE: Phase II trial to study the effectiveness of SU5416 in treating patients who have refractory or relapsed multiple myeloma.

RATIONALE: Thalidomide may stop the growth of multiple myeloma by stopping blood flow to the tumor. Prednisone may be effective in preventing relapse of multiple myeloma. PURPOSE: Randomized phase II trial to compare the effectiveness of two doses of thalidomide combined with prednisone following peripheral stem cell transplantation in treating patients who have multiple myeloma.

RATIONALE: Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing or die. Bone marrow transplantation may be able to replace immune cells that were destroyed by chemotherapy or radiation therapy used to kill cancer cells. PURPOSE: Phase I trial to study the effectiveness of cyclophosphamide plus bone marrow transplantation in treating patients who have hematologic cancer.

RATIONALE: PS-341 may stop the growth of tumor cells by blocking the enzymes necessary for tumor cell growth. PURPOSE: Phase I trial to study the effectiveness of PS-341 in treating patients who have hematologic cancer.

RATIONALE: Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing or die. Holmium Ho 166 DOTMP may deliver radiation directly to cancer cells and cause less damage to normal tissue. Combining chemotherapy and holmium Ho 166 DOTMP with peripheral stem cell transplantation may allow the doctor to give higher doses of chemotherapy and holmium Ho 166 DOTMP and kill more tumor cells. PURPOSE: Phase I/II trial to study the effectiveness of combining holmium Ho 166 DOTMP with melphalan and peripheral stem cell transplantation in treating patients who have multiple myeloma.

RATIONALE: Melphalan and colony-stimulating factors such as filgrastim may increase the number of immune cells found in bone marrow or peripheral blood. PURPOSE: Phase II trial to study the effectiveness of melphalan combined with filgrastim in stimulating peripheral stem cells in patients who have multiple myeloma.

RATIONALE: Reducing the amount of drugs used to prevent transplant rejection may help a person's body kill tumor cells. Giving biological therapy, such as interferon alfa, which may interfere with the growth of cancer cells, or combination chemotherapy, which uses different ways to stop tumor cells from dividing so they stop growing or die, may kill more tumor cells. PURPOSE: Phase II trial to study the effectiveness of reducing immunosuppression, and giving interferon alfa and combination chemotherapy, in treating patients who have malignant tumors that develop after organ transplant.