View clinical trials related to Leukemia.
Filter by:The study objective is to improve the global results obtained with LAL-AR-93 study, reaching an event free survival between 60-70%. Identify patients with bad prognosis, with minimal residual disease,who can benefit of allogenic bone marrow transplantation
Due to ALL Ph+ patients should receive a different treatment, is proposed a therapeutical protocol with: intensification treatment of induction to increment the CR rate, allogenic transplantation in first CR, autologous transplantation follow by alfa interferon in patients cannot done allogenic transplantation.
The goal of this study is to see if there is a benefit to giving chemotherapy and then natural killer (NK) cells. The NK cells must come from a family member who shares half of the patients HLA proteins. NK cells are a type of white blood cell. They can recognize and kill abnormal cells in the body. Patients whose blood cancer is not cured with a stem cell transplant do not have standard treatment options. Studies have shown that NK cells from a donor can be given safely and can be helpful in treating some blood diseases. These NK cells are collected from the patients donor and purified using a separation system called CliniMACS that has been used safely in previous studies and is used in this study with the approval of the Federal Food and Drug Administration. The researchers want to find out what effects the NK cells will have on blood cancer and bone marrow function and how to maximize its benefits in treating blood cancers. The researchers hope that giving chemotherapy and then NK cells will be a better treatment for the disease than the current available treatment options. Funding Source - Food and Drug Administration/Office of Orphan Products Development
Emerging results suggest that a cure rate of nearly 90 percent will be attained in the near future. The advance was attributed to stringent application of prognostic factors for risk factor-directed therapy. Early response to treatment has greater prognostic strength than does any other biologic or clinical feature tested to dates. The measurement of minimal residual disease(MRD) affords a level of sensitivity and specificity that cannot be attained through traditional microscopic morphologic assessments. In Taiwan, detection for the most recurrent fusion genes and the MRD were not commonly available, the TPOG(Taiwan Pediatric Oncology Group) used clinical features, immunophenotypes, and cytogenetics to do risk group classifications and protocol assignment. A successful rate of 60-70% has been reached. In order to improve the cure rate of ALL in Taiwan, this project aims at establishing the methods for better risk classifications and establishing MRD detection for risk-directed therapy for childhood ALL in Taiwan.Intrinsic and acquired resistances to multiple anticancer agents represent major obstacles and accounts for 10-20% of treatment failure in the developed countries nowadays. Recent progress using DNA microarray identified differential expression level of the genes known to implicate in cell cycle control, DNA repair and apoptosis in different subsets of ALL patients, which were found to be related to drug response. Genetic polymorphisms in the genes of drug-metabolizing enzymes, drug transporters or drug targets, can influence the efficacy or toxicity of antileukemic agents. Specific genotype might be important in determining the pharmacokinetic effects of one population or disease subtype from that in others. Recently, the expression profiles of relatively few microRNAs (miRNAs) (~200 genes), was noted to accurately classify human cancers. These informations hinted that expression of the genes in the leukemic cells might serve as additional risk factors for treatment stratification. Specific aims and goals: 1. to establish better risk factors classification and use MRD to monitor early response to treatment. 2. to establish the expression profiles of 12 genes associated with drug resistance 3. to unravel the pharmacogenetic background of pediatric ALL in Taiwan, so that will help refine the therapy dose, achieve a better drug effect and avoid acute or chronic toxicity. 4. microRNA expression profiles in childhood ALL in Taiwan
The goal of this research study is to identify biologic and lifestyle factors that may increase a person's risk of developing acute myeloid leukemia or myelodysplastic syndrome after treatment for a previous cancer (treatment-related AML/MDS).
Primary Objective: 1. Evaluate the ability of Cyclophosphamide, Fludarabine, Alemtuzumab, and Rituximab (CFAR) to increase the proportion of patients with <5% CD5/CD19+ cells in bone marrow to 66% following 3 courses of treatment without significantly increasing the incidence of pneumonia or sepsis compared to a historic group of patients treated with the combination fludarabine, cyclophosphamide, and rituximab (FCR). Second Objectives: 1. Assess complete remission (CR), nodular partial remission (nPR), and partial remission (PR) rates (overall response) in high-risk, previously untreated patients with CLL treated with CFAR. 2. Evaluate molecular remission in bone marrow by polymerase chain reaction (PCR) for the clonal immunoglobulin heavy chain variable gene in responders treated with CFAR. 3. Assess immune parameters including blood T cell counts and subset distribution and serum immunoglobulin levels pretreatment, during treatment, and post-treatment in patients treated with CFAR.
OBJECTIVES To investigate: - the mechanism of Valproic Acid (VPA)-induced apoptosis in B-CLL - the ability of VPA in combination with standard chemotherapy or new antitumor agents to induce a synergistic antitumor effect in chronic lymphocytic leukemia (CLL) cells - the clinical efficacy of VPA in previously treated CLL patients. This will be an example of a translational research study where the results of our laboratory studies will be applied to a clinical trial in the CLL clinic at CancerCare Manitoba.
The goal of this clinical research study is to find the highest tolerable dose of AT9283 that can be given to patients who have ALL, AML, CML, high-risk myelodysplastic syndromes, or myelofibrosis with myeloid metaplasia. Researchers want to perform pharmacokinetic (PK) testing on blood to find out how quickly the study drug leaves the body and how the body breaks down the drug. The safety and effectiveness of this drug will also be studied.
RATIONALE: Giving chemotherapy before a donor stem cell transplant helps stop the growth of cancer or abnormal cells. It also helps 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. Sometimes the transplanted cells from a donor can make an immune response against the body's normal cells. Giving cyclosporine and methotrexate before and after transplant may stop this from happening. PURPOSE: This clinical trial is studying the side effects and how well donor stem cell transplant works when given after conditioning therapy in treating patients with hematologic cancer, recurrent or metastatic solid tumor, or other disease.
Background: Major problems with stem cell transplantation (SCT) for cancer treatment are a lack of suitable donors for patients without a human leukocyte-antigen (HLA) tissue-matched sibling and graft-versus-host disease (GVHD), a serious side effects of immune-suppressing chemotherapy that is given to bring the cancer under control before SCT. In GVHD, the patients immune system attacks the transplanted donor cells. This study will try to improve the results of SCT from unrelated HLA-matched donors using targeted immune-depleting chemotherapy to bring the cancer under control before transplantation and to lower the chance of graft rejection, followed by reduced-intensity transplant chemotherapy to make the procedure less toxic. Objectives: To evaluate the safety and effectiveness of targeted immune-depleting chemotherapy followed by reduced-intensity transplant chemotherapy in patients with advanced cancers of the blood and immune system. To evaluate the safety and effectiveness of two different drug combinations to prevent GVHD. Both regimens have been successful in preventing GVHD, but they work by different mechanisms and affect the rebuilding of the immune system after the transplant. Eligibility: People 18 to 74 years of age with advanced or high-risk cancers of the blood and immune system who do not have a suitable HLA-matched sibling. Design: All patients receive chemotherapy before transplant to treat the cancer and suppress immune function. All patients receive a conditioning regimen of cyclophosphamide for 4 days and fludarabine for 4 days before SCT to prepare for the transplant. Patients are randomly assigned to one of two combination drug treatments to prevent GHVD as follows: - Group 1: Tacrolimus starting 3 days before SCT and continuing for 6 months, plus methotrexate on days 1, 3, 6, and 11 post-SCT, plus sirolimus starting 3 days before the SCT and continues for 6 months following SCT. - Group 2: Alemtuzumab for 4 days starting 8 days before SCT, plus cyclosporine starting 1 day before SCT and continuing for 6 months. Patients receive the donors stem cells and immune cells 2 days after completing the conditioning regimen. Patients are followed at the clinic regularly for the first 6 months after SCT, and then less often for at least 5 years. Some visits may include bone marrow aspirates and biopsies, blood draws, and other tests to monitor disease status. A skin biopsy, oral mucosa biopsy, and saliva collection are done to study chronic GVHD.