Active clinical trials for "Leukemia, Myelogenous, Chronic, BCR-ABL Positive"

This phase I/II trial is studying the side effects and best dose of sorafenib in treating young patients with relapsed or refractory solid tumors or leukemia. Sorafenib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth and by blocking blood flow to the cancer.

This randomized pilot clinical trial studies how well giving prolonged infusion compared to standard infusion of cefepime hydrochloride works in treating patients with febrile neutropenia. Giving cefepime hydrochloride over a longer period of time may be more effective than giving cefepime hydrochloride over the standard time.

The purpose of this study is to determine the tolerability and efficacy in treating patients aged 51-60 with acute leukemia and in treating myelodysplastic syndromes (MDS) or myeloproliferative disorders (MPD).

RATIONALE: Giving colony-stimulating factors, such as G-CSF, helps stem cells move from the bone marrow to the blood so they can be collected and stored until transplant. PURPOSE: This phase I trial is studying the side effects of G-CSF in stimulating peripheral stem cells for autologous stem cell transplant in treating patients with chronic phase chronic myeloid leukemia in remission.

During the Core Phase of the study, participants received STI571 at a dose of 400 milligrams (mg) daily for up to 12 months. Participants completing 12 months of therapy were eligible to continue treatment in the Extension Phase of the study provided that, in the opinion of the investigator, they had benefited from treatment with STI571 and there were no safety concerns.

The study will assess the role of high-dose imatinib mesylate, in patients who have taken imatinib mesylate for at least 1 year at the standard dose, in achieving a major molecular response (a measure of the level of chronic myelogenous leukemia) versus the standard dose.

To test whether increasing the dose of imatinib or combining it with IFNalpha or ara-C increases the rate of molecular response (as measured by the decrease in BCR-ABL transcripts after 12 months of treatment) in patients with previously untreated CML in chronic phase. To compare overall survival in a selected arm according to molecular response at 1 year from randomization with the reference arm.

Relapsed disease is the most common cause of death in children with hematological malignancies. Patients who fail high-intensity conventional chemotherapeutic regimens or relapse after stem cell transplantation have a poor prognosis. Toxicity from multiple therapies and elevated leukemic/tumor burden usually make these patients ineligible for the aggressive chemotherapy regimens required for conventional stem cell transplantation. Alternative options are needed. One type of treatment being explored is called haploidentical transplant. Conventional blood or bone marrow stem cell transplant involves destroying the patient's diseased marrow with radiation or chemotherapy. Healthy marrow from a donor is then infused into the patient where it migrates to the bone marrow space to begin generating new blood cells. The best type of donor is a sibling or unrelated donor with an identical immune system (HLA "match"). However, most patients do not have a matched sibling available and/or are unable to identify an acceptable unrelated donor through the registries in a timely manner. In addition, the aggressive treatment required to prepare the body for these types of transplants can be too toxic for these highly pretreated patients. Therefore doctors are investigating haploidentical transplant using stem cells from HLA partially matched family member donors. Although haploidentical transplant has proven curative in many patients, this procedure has been hindered by significant complications, primarily regimen-related toxicity including graft versus host disease (GVHD), and infection due to delayed immune reconstitution. These can, in part, be due to certain white blood cells in the graft called T cells. GVHD happens when the donor T cells recognize the patient's (the host) body tissues are different and attack these cells. Although too many T cells increase the possibility of GVHD, too few may cause the recipient's immune system to reconstitute slowly or the graft to fail to grow, leaving the patient at high-risk for infection. However, the presence of T cells in the graft may offer a positive effect called graft versus malignancy or GVM. With GVM, the donor T cells recognize the patient's malignant cells as diseased and, in turn, attack these diseased cells. For these reasons, a primary focus for researchers is to engineer the graft to provide a T cell depleted product to reduce the risk of GVHD, yet provide a sufficient number of cells to facilitate immune reconstitution, graft integrity and GVM. In this study, patients were given a haploidentical graft engineered to with specific T cell parameter values using the CliniMACS system. A reduced intensity, preparative regimen was used to reduce regimen-related toxicity and mortality. The primary goal of this study is to evaluate overall survival in those who receive this study treatment.

This phase II trial studies pentostatin and donor lymphocyte infusion in preventing graft rejection in patients who have undergone donor stem cell transplant. Giving pentostatin and an infusion of the donor's T cells (donor lymphocyte infusion) after a donor stem cell transplant may 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 pentostatin before donor lymphocyte infusion may stop this from happening.

The purpose of this clinical research study is to learn if BMS-354825 will have activity as defined by hematologic responses in subjects with lymphoid blast phase chronic myeloid leukemia (CML) and Philadelphia chromosome positive acute lymphoblastic leukemia with primary or acquired resistance to imatinib mesylate.