Active clinical trials for "Leukemia, Lymphocytic, Chronic, B-Cell"

The purpose of this study is to confirm the efficacy and safety of fludarabine phosphate administered with dose increasing in 6 cycles (1 cycle: 5 treatment days every 28 days) in untreated chronic lymphocytic leukemia (CLL) patients with anemia and/or thrombocytopenia.

The goal of this clinical research study is to find the highest safe dose of Mylotarg that can be combined with chemotherapy in patients receiving allogeneic bone marrow transplantation. Researchers will study the effects of this treatment combination on patients with high-risk acute leukemia, chronic myelogenous leukemia, or myelodysplastic syndrome. Primary Objective: 1. To determine the safety and maximum tolerated dose of Mylotarg as part of a reduced-intensity preparative regimen patients undergoing related, mismatched-related or matched unrelated donor transplantation. Secondary Objectives: To evaluate response rates, engraftment kinetics and degree of chimerism achievable with this strategy. To evaluate the incidence and severity of GVHD in this population To evaluate disease-free and overall survival and relapse rates.

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. Monoclonal antibodies can locate cancer cells and either kill them or deliver cancer-killing substances to them without harming normal cells. PURPOSE: Phase II trial to study the effectiveness of fludarabine plus high-dose cyclophosphamide and rituximab in treating patients who have previously untreated chronic lymphocytic leukemia.

This phase I trial is studying the side effects and best dose of bryostatin-1 when given together with vincristine in treating patients with chronic lymphocytic leukemia, non-Hodgkin's lymphoma, or multiple myeloma. 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

This pilot clinical trial studies low-dose total body irradiation and donor peripheral blood stem cell transplant followed by donor lymphocyte infusion in treatment patients with non-Hodgkin lymphoma, chronic lymphocytic leukemia, or multiple myeloma. Giving total-body irradiation before a donor peripheral blood stem cell transplant helps stop the growth of cells in the bone marrow, including normal blood-forming cells (stem cells) and cancer cells. When 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. Once the donated stem cells begin working, the patient's immune system may see the remaining cancer cells as not belonging in the patient's body and destroy them. Giving an infusion of the donor's white blood cells (donor lymphocyte infusion) may boost this effect.

Randomized phase III trial to compare the effectiveness of two regimens of combination chemotherapy followed by rituximab or observation in treating patients who have stage III or stage IV low-grade non-Hodgkin's lymphoma. 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. Monoclonal antibodies such as rituximab can locate cancer cells and either kill them or deliver cancer-killing substances to them without harming normal cells. It is not yet known which regimen of combination chemotherapy, with or without rituximab, is more effective for non-Hodgkin's lymphoma

This clinical trial studies the side effects and best dose of giving fludarabine and total-body irradiation (TBI) together followed by a donor stem cell transplant and cyclosporine and mycophenolate mofetil in treating human immunodeficiency virus (HIV)-positive patients with or without cancer. Giving low doses of chemotherapy, such as fludarabine, and TBI before a donor bone marrow or peripheral blood stem cell transplant helps stop the growth of cancer or abnormal cells and 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 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 cyclosporine (CSP) and mycophenolate mofetil (MMF) after the transplant may stop this from happening.

This phase II trial studies how well fludarabine phosphate with radiation therapy and rituximab followed by donor stem cell infusions work in treating patients with high-risk chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL) with low side effects. Nonmyeloablative stem cell transplants use low doses of chemotherapy (fludarabine phosphate) and radiation to suppress the patient's immune system enough to prevent rejection of the donor's stem cells. Following infusion of donor stem cells, a mixture of the patient's and the donor's stem cells will exist and is called "mixed chimerism". Donor cells will attack the patient's leukemia. This is called the "graft-versus-leukemia" effect. Rituximab will be given 3 days before and three times after infusing stem cells to help in controlling CLL early after transplant till the "graft-versus-leukemia" takes control. Further, rituximab could augment the "graft-versus-leukemia" effect by activating donor immune cells and hence improve disease control. Sometimes the transplanted cells from a donor can also attack the body's normal cells. Giving cyclosporine and mycophenolate mofetil after the transplant may stop this from happening.

The purpose of this study is to provide treatment for patients who have chronic lymphocytic leukemia (CLL), and to compare the use of rituximab added to fludarabine+cyclophosphamide (FC) with FC alone, to determine if rituximab lengthens the time a patient remains free of leukemia symptoms.

Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing or die. Phase I trial to study the effectiveness of imatinib mesylate in treating patients who have advanced cancer and liver dysfunction