Active clinical trials for "Leukemia"

The primary objective of this study is to describe the maintenance of the molecular remission after tyrosine kinase inhibitor (TKI) disconnection in chronic myeloid leukaemia (CML) patients in China in the real-world clinical practice setting. This is a post-marketing, non-interventional, single-arm, prospective registry study in adult patients with chronic phase (CP) and accelerated phase (AP) in China. Patients will be recruited consecutively from the study sites during the enrollment period. The enrolled patients will be undertaking TKI discontinuation under the conditions of informed consent and frequent monitoring according to the clinical guideline.

A 5 day course of fludarabine and cytarabine (FA) will be administered followed by full intensity conditioning regimen (Bucy) in the setting of allogeneic stem cell transplantation (SCT). The purpose of this study is to explore the antileukemic, immunosuppressive effects and safety of FA as the backbone of a conditioning regiment for the treatment of patients with high-risk, recurrent or refractory acute Leukemia and advanced myelodysplastic syndrome.

Results of actual treatment in ALL are not optimal. New prognostic factors, which may determine clinical & molecular response are required. Hyper-CVAD is an internationally accepted schema for such patients. The objective of this pilot study is to evaluate polymorphisms regarding RFC (reduced folate carrier) and MTHFR enzyme, which may affect the function of these proteins, and therefore the intracellular bioavailability of methotrexate. Also, the expression levels of hENT1 and dCK will be evaluated, since such genes codify for citarabine intracellular transport and activation, respectively. Clinical characteristics will be tabulated and analyzed for responders & non-responders patients. Uni- & multivariate analysis will be done to evaluate factors influencing on response and survival.

The GIMEMA CML Working Party promotes a multicentric, observational, non company sponsored, prospective study of Chronic Myeloid Leukemia (CML) patients treated frontline with dasatinib. Patients will be followed for 5 years. This study will help the definition of guidelines for the treatment of CML patients in early phases. The primary objective of the study is to describe, in the clinical practice, the rate of events leading to permanent discontinuation after 2 years of treatment with dasatinib as frontline therapy in newly diagnosed CML patients.

The broad goal of this study is to investigate if differences exist (and in which areas and of what magnitude) in QoL and symptoms of patients with CML being treated with first line therapy with dasatinib versus those receiving first line therapy with imatinib. Also, an additional objective is to characterize medication-taking behavior associated with imatinib or dasatinib.

This registry is set up to collect real-world experience in the management of patients with myeloid neoplasms, in particularly in patients with MDS, CMML or AML, treated with hypomethylating agents in Austria and potentially other participating countries. This registry will collect data in a retrospective as well as in a prospective manner at various sites. The aim is to gain valuable insights on both efficacy and toxicity of these drugs in a routine clinical setting in patients with various comorbidities.

The purpose of this study is to evaluate effectiveness of Dasatinib as the first line therapy for patients with newly diagnosed chronic myeloid leukemia in chronic phase in Japan.

Identification of alterations potentially involved in the complex mechanisms of leukemogenesis and at the identification and validation of novel biological factors which may serve as predictors of drug-response and drug-resistance or which may be suitable for targeted therapy.

Newly diagnosed pediatric patients (age < 19 years) with bcr-abl-positive CML will be treated with imatinib. Serial monitoring of treatment response is performed in one month intervals during the first three months of treatment and in three months intervals thereafter. Patients with non-response, poor response (either molecular, cytogenetic, or hematologic non-/poor response) or progress of the disease while under imatinib treatment will stop imatinib and undergo stem cell transplantation. All responders to imatinib treatment with an HLA matched donor will undergo stem cell transplantation not later than 2 years after diagnosis.

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: to establish better risk factors classification and use MRD to monitor early response to treatment. to establish the expression profiles of 12 genes associated with drug resistance 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. microRNA expression profiles in childhood ALL in Taiwan