Active clinical trials for "Leukemia"

RATIONALE: Giving low doses of chemotherapy before a donor stem cell transplant helps stop the growth of cancer cells. It may also 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 a monoclonal antibody, such as alemtuzumab, before transplant and tacrolimus and methotrexate after transplant may stop this from happening. PURPOSE: This phase II trial is studying the side effects of donor stem cell transplant and to see how well it works in treating patients with high-risk hematologic cancer.

This study will assess the efficacy (response rate) of oral lenalidomide in the treatment of patients with symptomatic, previously untreated, chronic lymphocytic leukemia (CLL), toxicity of lenalidomide in patients with CLL as well as time to progression, stable disease duration and, if responses are observed, response duration.

The purpose of this study was to determine if maintenance therapy with ofatumumab would prolong remission in patients with CLL who have responded to second or third line treatment. This study would also evaluate the safety of ofatumumab maintenance compared to observation (the current standard of care). This study was co-developed with the HOVON and NORDIC CLL group and would be conducted as a collaborative effort with GSK.

This phase II trial studies how well donor peripheral blood stem cell (PBSC) transplant works in treating patients with hematologic malignancies. Cyclophosphamide when added to tacrolimus and mycophenolate mofetil is safe and effective in preventing severe graft-versus-host disease (GVHD) in most patients with hematologic malignancies undergoing transplantation of bone marrow from half-matched (haploidentical) donors. This approach has extended the transplant option to patients who do not have matched related or unrelated donors, especially for patients from ethnic minority groups. The graft contains cells of the donor's immune system which potentially can recognize and destroy the patient's cancer cells (graft-versus-tumor effect). Rejection of the donor's cells by the patient's own immune system is prevented by giving low doses of chemotherapy (fludarabine phosphate and cyclophosphamide) and total-body irradiation before transplant. Patients can experience low blood cell counts after transplant. Using stem cells and immune cells collected from the donor's circulating blood may result in quicker recovery of blood counts and may be more effective in treating the patient's disease than using bone marrow.

This study of SCH 900776 (MK-8776) will evaluate its safety and tolerability when given in combination with cytarabine to participants with acute leukemias. Participants in the Dose-Escalation Part will be enrolled in cohorts that will receive sequentially higher doses of MK-8776 in combination with standard doses of cytarabine. Only one combination treatment cycle of approximately 4 to 6 weeks is anticipated, but participants may receive additional cycles if clinically indicated after discussion between the Investigator and the Sponsor. The recommended combination doses for a Phase 2 trial (RP2D) will be determined based on safety and biological activity. Up to 10 to 15 additional participants will be studied at the combination RP2D.

The main purpose of this study is to find out if radiation to the central nervous system (CNS) can be safely omitted with early intensification of chemotherapy and chemotherapy given directly to the CNS. Another purpose is to find out if survival of children with ALL can be improved with risk-directed therapy given on this protocol.

This phase II trial is studying how well giving combination chemotherapy together with alemtuzumab works in treating patients with relapsed or refractory acute lymphoblastic leukemia. Drugs used in chemotherapy work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Giving more than one drug (combination chemotherapy) may kill more cancer cells. Monoclonal antibodies, such as alemtuzumab, 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. Giving combination chemotherapy together with alemtuzumab may kill more cancer cells.

This randomized phase II trial is studying thalidomide and fludarabine to see how well they work compared to thalidomide alone in treating patients with hematologic cancer that has not responded to previous treatment with fludarabine. Thalidomide may stop the growth of hematologic cancer by stopping blood flow to the cancer. Combining thalidomide with fludarabine may increase the effectiveness of chemotherapy by making cancer cells more sensitive to the drug. It is not yet known whether thalidomide is more effective with or without fludarabine for hematologic cancer.

Phase II trial to study the effectiveness of arsenic trioxide in treating patients who have relapsed or refractory lymphoma or leukemia. Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die

RATIONALE: Antibodies can locate tumor cells and either kill them or deliver tumor-killing substances to them without harming normal cells. PURPOSE: Phase I trial to study the effectiveness of antibody therapy in treating patients who have refractory or relapsed non-Hodgkin's lymphoma or chronic lymphocytic leukemia.