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

This study will assess the safety and efficacy of imatinib in newly enrolled previously untreated patients with chronic phase CML.

To determine the long term safety and tolerability of dasatinib exposure in subjects previously treated in CA180-002.

This is a phase I study using Intensity Modulated Total Marrow Irradiation (IM-TMI) in addition to a chemotherapy regimen in preparation for an allogeneic stem cell transplant for advanced hematologic malignancies such as acute myeloid or lymphoblastic leukemia, high grade non Hodgkin's or Hodgkin's lymphoma, chronic myelogenous leukemia, and plasma cell leukemia. Because the subjects participating in this study have a disease that is severe and has a high risk of relapse even after transplant, the investigators propose to use a chemotherapy regimen (fludarabine/busulfan), the name for the combination of chemotherapy drugs that is given to patients prior to transplantation of the donor stem cells, along with intensity modulated radiation (IM-TMI) to the bone marrow. Total body irradiation (TBI) in conjunction with chemotherapy is a standard of care as a pre-conditioning regimen prior to bone marrow transplant (BMT) in patients with hematologic malignancies. However, TBI can cause severe side effects due to irradiation of organs such as the lenses of the eye, whole brain, lungs, liver, kidneys, heart, small bowel and oral cavity. IM-TMI allows for the delivery of adequate doses of radiation to the bone marrow while sparing other organs and therefore limiting radiation side effects. The irradiation, along with receiving the chemotherapy drugs will suppress the subject's immune system and kill off tumor cells, but will also intensify the effect of the conditioning regimen thus allowing the bone marrow transplantation to have a greater chance of being successful. No investigational drugs are used in this study. The investigational part of this study is the use of intensity modulated total marrow irradiation instead of conventional radiation. IMTMI can deliver 99% of the prescribed treatment to the targeted bones and reduce the doses of radiation to surrounding organs, as received in conventional TBI, by 29% to 65%.

Blood and marrow stem cell transplant has improved the outcome for patients with high-risk hematologic malignancies. However, most patients do not have an appropriate HLA (immune type) matched sibling donor available and/or are unable to identify an acceptable unrelated HLA matched donor through the registries in a timely manner. Another option is haploidentical transplant using a partially matched family member donor. Although haploidentical transplant has proven curative in many patients, this procedure has been hindered by significant complications, primarily regimen-related toxicity including 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 body tissues of the patient (the host) 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 significant infection. For these reasons, a primary focus for researchers is to engineer the graft to provide a T cell dose that will reduce the risk for GVHD, yet provide a sufficient number of cells to facilitate immune reconstitution and graft integrity. Building on prior institutional trials, this study will provide patients with a haploidentical (HAPLO) graft engineered to specific T cell target values using the CliniMACS system. A reduced intensity, preparative regimen will be used in an effort to reduce regimen-related toxicity and mortality. The primary aim of the study is to help improve overall survival with haploidentical stem cell transplant in this high risk patient population by 1) limiting the complication of graft versus host disease (GVHD), 2) enhancing post-transplant immune reconstitution, and 3) reducing non-relapse mortality.

350 patients with early leukemias were assigned to receive peripheral blood or bone marrow transplantation; the occurrence of acute and chronic graft versus host disease, survival, transplantation-related mortality, and relapse rates were compared.

This phase I/II trial studies the side effects and best dose of donor natural killer (NK) cell therapy and to see how well it works when given together with fludarabine phosphate, cyclophosphamide, total-body irradiation, donor bone marrow transplant, mycophenolate mofetil, and tacrolimus in treating patients with hematologic cancer. Giving chemotherapy, such as fludarabine phosphate and cyclophosphamide, and total-body irradiation before a donor bone marrow transplant helps stop the growth of cancer cells. It may also stop the patient's immune system from rejecting the donor's stem cells. When the 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. Giving an infusion of the donor's T cells (donor lymphocyte infusion) may help the patient's immune system see any remaining cancer cells as not belonging in the patient's body and destroy them (called graft-versus-tumor effect). Sometimes the transplanted cells from a donor can make an immune response against the body's normal cells. Giving mycophenolate mofetil and tacrolimus after the transplant may stop this from happening.

Standard therapy with Imatinib (IM) significantly prolongs the survival of Ph+CML patients who obtain a complete cytogenetic response (CCgR). Elderly patients (i.e., at least 65 years) have similar cytogenetic responses and survival, but they usually show a low compliance. The aim of the study is to evaluate the percentage of elderly patients who maintain a CCgR with intermittent imatinib therapy with respect to standard daily administration.

A non-randomized, open-label study to investigate the effects of imatinib mesylate on the pharmacokinetics of acetaminophen/paracetamol in patients with newly diagnosed, previously untreated chronic myeloid leukemia in chronic phase (CML-CP)

This phase I trial is studying the side effects and best dose of GTI-2040 in treating patients with relapsed, refractory, or high-risk acute leukemia, high-grade myelodysplastic syndromes, or refractory or blastic phase chronic myelogenous leukemia. Drugs used in chemotherapy, such as GTI-2040, work in different ways to stop the growth of cancer or abnormal cells, either by killing the cells or by stopping them from dividing.

This study will test the safety and effectiveness of two vaccines on slowing disease progression, improving blood counts, reducing the need for transfusions of blood and platelets, or achieving remission in patients with myelodysplastic syndrome (MDS, also known as myelodysplasia), acute myeloid leukemia (AML) or chronic myeloid leukemia (CML). The vaccines consist of peptides (parts of proteins) found in MDS, AML and CML stem cells, combined with a substance called "MontanideTM". They are administered with granulocyte- macrophage colony- stimulating factor (GM-CSF). The Montanide and the GM-CSF help the immune system respond to the vaccines. People 18 years of age or older with MDS, AML or CML may be eligible for this study. Participants receive six injections of the vaccines, one dose every other week for a total of 10 weeks. The injections are given in the upper arm, upper leg, or abdomen. A separate injection of GM-CSF is given in the same area as the vaccine injections. Subjects are observed for 2 hours after the first vaccination and at least 30 minutes after each subsequent vaccination for allergic reactions. In addition to the vaccination, subjects undergo the following: History and physical exam, chest x-ray, blood tests and bone marrow aspirate and biopsy before starting the vaccinations. Safety monitoring during vaccine administration (every other week for 10 weeks) with blood tests and check of vital signs. Follow-up safety monitoring (weeks 12 and 16) with blood tests every visit, chest x-ray at week 12 and bone marrow biopsy visit 16.