Active clinical trials for "Leukemia, Myeloid"

The primary purpose of the study is to determine, whether the addition of 5-azacytidine to standard chemotherapy in elderly patients with newly diagnosed AML improves treatment results (event free survival).

There is no curative therapy once acute leukemia patients relapse after transplant. Patients who develop clinically significant graft versus host disease (GVHD) have a lower rate of relapse than those who do not develop GVHD. We are initiating this study of post-transplant fast withdrawal of immunosuppression and donor lymphocyte infusions, with a goal of achieving full donor chimerism in children with hematologic malignancies. If our hypothesis that full donor chimerism results in leukemia-free survival is correct, using immune modulation to achieve full donor chimerism should decrease relapse rate and thus increase survival. The goal of this Phase II study is to identify if achieving full donor chimerism in whole blood CD3+ and leukemia-specific (CD14/15+, CD19+, CD33+ and CD34+) subset may decrease the risk of relapse of patients undergoing allogeneic transplant for hematologic malignancy.

First randomization: After inclusion Use of Daunorubicin (arm D) or Idarubicin (arm I) as anthracyclin during all courses of chemotherapy (induction, consolidation courses before ASCT) Second randomization: After achieving 1st CR: all patients received non intensive consolidation course Familial HLA typing required for all patients Patients with HLA-identical sibling: Patients with very good prognostic factors (CBF leukemias, WBC < 30 giga/l at diagnosis, 1st CR after one induction course) = arm C: no allogeneic stem cell transplantation in 1st CR; received 2 more courses of intensive consolidation chemotherapy All others patients received an allogeneic transplant For patients aged less than 51 = arm M: upfront myeloablative conditioning regimen For patients aged over 51 and less than 61= arm m: intensive chemotherapy consolidation course.

AML2003 is a prospective randomized trial, to investigate the value of early allogeneic stem cell transplantation in aplasia after induction therapy for high risk patients with acute myeloid leukemia.

Efforts to decrease the risk of GvHD by depleting T cells from the graft in CML patients have been complicated by an increased incidence of leukemia-relapse. Newer protocols using CD34+ selected hematopoietic cells from matched-sibling donors and subsequent infusion of T cells in incremental doses to treat or avoid relapse of disease seem to be more promising. In this study, we try to further optimize this approach by the prophylactic infusion of cytotoxic T cells activated ex-vivo against leukemia-associated/specific antigens using peptide-pulsed dendritic cells.

Many patients suffering various malignant and non-malignant diseases need hematopoietic stem cell transplantation from a healthy person. In the majority of cases there is no matched related or unrelated donor. Some researchers have been performed transplantation from semi-matched (haploidentical) related donors with relatively good results. Chinese researchers have been performed this kind of transplantation using CAMPATH-1H and their reports indicates good results. Chinese populations have more homogenous genetic background than Iranians. In this project, we are going to study the feasibility of this method of haploidentical transplantation in Iranian patients.

This study will evaluate the molecular response to high dose Gleevec in newly diagnosed patients with Chronic Myelogenous Leukemia (CML) in Chronic Phase. This study will evaluate the ability of Gleevec to reduce the amount of abnormal protein that occurs in patients with CML. Patients who are eligible to participate will be treated for 18 months. This trial will include male or female patients 18 years or older who are newly diagnosed (within 6 months) with CML.

The purpose of this study is to determine if peripheral blood cells collected following AMD3100 mobilization can be used safely for hematopoietic cell transplantation into HLA-matched recipients.

In this study our hypothesis is that infusion of donor lymphocyte immune cells from the subject's bone marrow donor will activate the subject's immune system to attack their cancer.

Recent studies of conventional chemotherapy for infants with high-risk hematologic malignancies show that the long-term disease-free survival is low. Although blood and marrow stem cell transplantation using an HLA identical sibling has improved the outcome for these children, less than 25% have this donor source available. Another option is haploidentical transplantation using a partially matched family member donor (i.e. parental donor). Although haploidentical transplantation has proven curative for some patients, this procedure has been hindered by significant complications, primarily regimen-related toxicity including infection and graft versus host disease (GVHD). Building on prior institutional trials, this study will provide patients a haploidentical graft depleted of T lymphocytes using the investigational device, CliniMACS selection system. One week after the transplant procedure, patients will also receive an infusion of additional donor derived white blood cells called Natural Killer (NK) cells in an effort to decrease risks for rejection of the graft, disease relapse, and regimen related toxicity. The primary objective of the study is to evaluate 1 year survival in infants with high risk hematologic malignancies who receive this study treatment.