View clinical trials related to Leukemia.
Filter by:Patients with refractory hematologic malignancies, including those who develop recurrent disease after allogeneic hematopoietic stem cell transplantation (HSCT) have a dismal prognosis. Historically, both regimen-related mortality and disease recurrence have been significant causes of treatment failure in this heavily pre-treated patient population. Novel therapeutic agents that target molecular signaling mechanisms and increase the sensitivity of leukemic cells to apoptosis may clearly play a role in this setting. This study hypothesizes that interrupting the SDF-1/CXCR4 axis using the selective CXCR4 antagonist plerixafor may be useful as a leukemic stem cell mobilizing agent for patients who are refractory to standard dose chemotherapy and in relapse after an allogeneic transplant. This hypothesis is based on the dependence of leukemia cells on MSCs for survival signals as described above and on the preclinical data that suggest increased efficacy by antileukemia agents when leukemia cells are separated from MSCs. In the present trial, the study proposes to add plerixafor to enhance the conditioning regimen cytotoxicity. At this time the goal is to determine the maximum tolerated dose (MTD) of plerixafor through the process of dose limiting toxicity (DLT) evaluation. Pharmacokinetic studies will be conducted. Additional studies will quantify and the content of leukemia cells and key regulatory and effector T cell populations in the bone marrow and blood before and after exposure to this medication. If the observed outcomes of this trial are promising, it could serve as a platform on which to study further use of plerixafor as a complimentary agent with conditioning as well as other chemotherapeutic regimens for patients with relapsed or refractory hematologic malignancies.
Unrelated cord blood transplantation (UCBT) has been used for several years when there is no HLA identical sibling or unrelated donor.Since the recent publication of encouraging results after transplantation of two UCB units, the number of these double-transplantations increases in a very significant way.However, there is currently no prospective study comparing in a reliable way the double-transplantation to single-transplantation results.The investigators propose a prospective and randomized study comparing the results of single versus double unit UCBT in children and young adults (< 35 yrs) with acute leukemia in remission. This is an open, multicenter study carried out in the allogeneic transplant centers from the French society for hematopoietic stem cell transplantation and cell therapy. The primary objective is to compare the incidence of transplantation failure in the two treatment arms. Transplantation failure, the primary endpoint of the study, is defined by the occurrence of one of the following events : transplant-related death, second allogeneic transplantation or autologous backup infusion for primary engraftment failure, autologous recovery. The financial impact of these double-transplantations being to date unknown, the project also includes a cost-effectiveness study, the effectiveness criterion being a decrease in transplantation failure incidence. The secondary clinical endpoints are: overall survival and disease-free survival, relapse incidence, transplant-related mortality, incidence of severe infections and GvHD. The secondary biological endpoints are: hematological and immunological recovery, post transplant chimerism.
A Randomized Multicenter Phase III Study to Evaluate the Role of All-trans Retinoic Acid (ATRA) in Combination with Induction Chemotherapy, or Azacitidine and Idarubicin as salvage therapy and Idarubicin with Cytarabine or Azacitidine as Maintenance Therapy in Older Patients with Acute Myeloblastic Leukemia (AML). To compare the outcome of elderly patients with newly-diagnosed AML treated with standard induction chemotherapy and post-remission therapy, in only patients in CR, with either azacitidine or cytarabine combined to idarubicin +/- ATRA and salvage therapy with azacitidine combined to idarubicin +/- ATRA.
In this research study we will start by looking for the highest dose of pyrimethamine that can be given safely to CLL patients without severe or unmanageable side effects. This dose will then be used for a larger Phase II study to assess the efficacy of pyrimethamine for the treatment of CLL/SLL. Pyrimethamine is an antibiotic that is used for the treatment of certain infections. Previous research studies have shown that pyrimethamine may target a protein in tumor cells, called STAT3, which may be important for the growth of chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL) cells. Pyrimethamine can kill CLL/SLL cells in the laboratory, and we are therefore undertaking this study to assess whether pyrimethamine will result in clinical benefit or tumor responses in CLL in patients.
A phase IIa study to evaluate the pharmacokinetic and efficacy of amonafide L-malate (AS1413) in combination with cytarabine in treating patients with acute myeloid leukemia (AML)
This study will assess the pharmacokinetics of imatinib in pediatric patients ages 1 to <4 years of age to help develop dosing regimens
The most reliable prognostic marker of acute myeloid leukemia(AML) is cytogenetics by karyotyping. According to cytogenetic results, the patients with AML are classified as better, intermediate and poor prognosis groups. The normal karyotype AML was reported in about 50% of all AML and classified as intermediate risk group. However, the patients with normal karyotype AML showed various prognosis. Therefore, the further studies about subgroup analysis of normal karyotype AML are needed. Recently, the understandings of human genome polypmorphism using SNP array have been accumulated. However, the advanced researches for clinical application are not enough. The study design is a retrospective and single-center study. The patients with normal karyotyping AML who were diagnosed from 1994 to 2008 at Samsung Medical Center (South Korea) will be enrolled. The stored bone marrow samples of enrolled patients are used for genome wide scanning by SNP array. The purpose of present study is to develop predictive pharmacogenemic biomarkers model associated wit clinical outcomes including efficacy and toxicity in patients with AML with normal karyotype treated with chemotherapy using pharmacogenetic SNP array. And secondly, to develop enrichment clinical trial based on predictive pharmacogenomic model.
Core binding factor (CBF) positive acute myeloid leukemia (AML) consist of 15% of patients in overall AML, expected to harbor a favorable prognosis. However, around a half of cases relapses. Accordingly, more sophisticated classification in CBF positive AMLs is essential to achieve further improvement in the treatment outcome. The current study is designed to evaluate CBF positive AML patients with genome-wide SNP array and KIT mutation study in CBF positive AML patients diagnosed at the Samsung Medical Center and Hwasun Chonnam National University Hospital, Korea between 1994 and 2008. 1. Construction of the CBF positive AML patient cohort: clinical database establishment (including treatment outcomes and prognosis) and extraction/storage of tumor cell DNAs from marrow samples, then processing of Affymetrix SNP array 6.0. 2. Construction of prognostic predictive model using pharmacogenomics with the results of genotypes and copy number variations (CNVs). 3. Detection of hidden microscopic cytogenetic lesions with SNP array technique, and correlation with clinical outcomes in CBF positive AML. 4. Detection of KIT, FLT3/ITD, and NPM1 gene mutation and its correlation with clinical outcomes in CBF positive AML. The current study attempts to analyze genetic data of core binding factor (CBF) positive acute myeloid leukemia (AML) using genome wide SNP array technique with tumor DNAs collected at the time of diagnosis. 1. To detect microcytogenetic lesions and will analyze its prognostic significance 2. To analyze genome-wide genotypes and copy number variations (CNVs) using pharmacogenetic approach and will construct a prognostic predictive model 3. To detect KIT, FLT3/ITD and NPM1 mutation and evaluate its prognostic significance. The present study will establish individualized therapy for CBF positive AML, will provide a basis for molecular marker guided clinical trial in CBF positive AML.
The purpose of this study is to determine the side effects of the study drug, clofarabine, when given by mouth to patients with acute myeloid leukemia (AML), in remission.
Prospective use of RT-PCR for PML/RARa might be used to guide a total tehrapy approach in APL, including refined diagnosis, front-line treatment, assessment of response and anticipated salvage therapy for patients who undergo molecular relapse.