Active clinical trials for "Leukemia"

RATIONALE: Drugs used in chemotherapy, such as clofarabine, 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 clofarabine and to see how well it works in treating patients with T-cell or natural killer-cell lymphoma that has relapsed or not responded to previous treatment.

The purpose of this study is to evaluate the safety of lenalidomide and to define the maximum tolerated escalation dose level (MTEDL) when administered by a stepwise dose-escalation schedule in subjects with relapsed or refractory B-cell CLL.

RATIONALE: 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. Monoclonal antibodies, such as gemtuzumab ozogamicin, 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. Tipifarnib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Giving combination chemotherapy together with gemtuzumab ozogamicin or tipifarnib may kill more cancer cells. PURPOSE: This randomized phase II/III trial is studying different combination chemotherapy regimens to compare how well they work when given with or without gemtuzumab ozogamicin or tipifarnib in treating patients with acute myeloid leukemia or high-risk myelodysplastic syndromes.

The aim of this study is to determine the safety, tolerability and dose-limiting toxicities of KW-2478 and to determine the Maximum Tolerated Dose and recommended Phase II dose for patients with relapsed/refractory MM, CLL or B-cell NHL.

This phase I trial is studying the side effects and best dose of bevacizumab and cediranib maleate in treating patients with metastatic or unresectable solid tumor, lymphoma, intracranial glioblastoma, gliosarcoma or anaplastic astrocytoma. Monoclonal antibodies, such as bevacizumab, 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. Cediranib maleate may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Bevacizumab and cediranib maleate may also stop the growth of cancer cells by blocking blood flow to the cancer. Giving bevacizumab together with cediranib maleate may kill more cancer cells.

RATIONALE: 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. Imatinib mesylate may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. A peripheral stem cell transplant may be able to replace blood-forming cells that were destroyed by chemotherapy. When the healthy stem cells 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 combination chemotherapy together with imatinib mesylate and peripheral stem cell transplant may be an effective treatment for acute lymphoblastic leukemia. Nevertheless, in the last few years GIMEMA has pubblished a paper in which 100% of Ph+ ALL patients reach HCR only with Imatinib, without any chemiotherapy. Thus, this treatment will be implemented in patients pertaining to this category.

Cytokine-induced killer ( CIK ) cells have been shown by our lab to be cytolytic against both autologous and allogeneic acute myeloid leukemia ( AML ) cells. Large scale expansion of CIK cells has also been shown to be feasible in healthy allogeneic stem cell donors as well as in patients undergoing mobilization for autologous transplant. Donor lymphocyte infusion (DLI) has been shown to be active against some haematological malignancies including CML, AML, MDS,NHL and Hodgkin's disease. These donor lymphocytes can be further activated in vitro to become CIK cells. At least 2 other centers in the world have given allogeneic CIK cells for patients relapsing post allogeneic transplant for a variety of haematological malignancies. These early reports have demonstrated feasibility, absence of increased GVHD and possible efficacy in some cases. We are proposing a Phase I /II study on the feasibility / efficacy of immunotherapy with allogeneic CIK cells for patients who relapse after allogeneic marrow transplant for their haematological malignancies. These patients have to be either refractory to conventional donor lymphocyte infusion, or need a larger number of donor lymphocyte than could be provided by unmanipulated donor lymphocytes. Donor lymphocytes will be collected and cultured in GMP facilities to maturity, then infused into patients. This will be given in graded doses at 4 weekly intervals and continued on in the absence of GVHD till remission is achieved or disease progression occurs. Patients may receive various forms of chemotherapy appropriate to the clinical condition in each case before the allogeneic CIK infusion. Efficacy will be assessed by comparing the response to allogeneic CIK infusion vs that to due to conventional DLI, ie response to the two different treatment using DLI response as the comparator. We expect about 10 such cases to be done over the next 3 years. Significant statistics is unlikely to be generated but observation and description of the response can generate useful information for presence or not of the efficacy of such a treatment. If clinical efficacy and superiority over conventional DLI is demonstrated, then future allogeneic CIK may take the place of DLI in this group of poor prognosis patients who relapse after allogeneic transplant .

This is a phase II, multi-center, open-label, non-randomized trial. During Part 1 of the trial, patients will receive once daily oral administration of STI571 at a dose of 600 mg for 24 weeks. After completing 24 weeks of therapy, patients may be eligible to receive additional therapy during Part 2 of the trial provided that, in the opinion of the investigator, the patient has benefited from treatment with STI571 and in the absence of safety concerns. During Part 2 (which is of indefinite duration), patients will continue to receive STI571 on a daily basis until either death, the development of intolerable toxicity or the investigator feels it is no longer in the patient's best interest to continue therapy, whichever comes first.

Phase I Study of Lenalidomide in Acute Leukemias and Chronic Lymphocytic Leukemia.

To reproduce or to improve the index of complete responses of protocol LMA-91 with a similar protocol, decreasing the dose of Idarubicin to try to reduce the deaths in induction