Active clinical trials for "Leukemia, Lymphoid"

The Environmental Protection Agency has recognized that organophosphorus pesticides require close regulation and continued monitoring for human health effects and some (e.g chlorpyrifos) have been phased-out from the consumer market due to the special risk that it posed for children. There is growing evidence in support of the association between pesticide exposure and childhood leukemia. Studies of pesticides and their association with childhood cancer have been limited by study designs, self-reporting and lack of biological measurements. While several large studies in California found little evidence of an association between agricultural pesticide use and childhood leukemia, these results are in contrast with the associations observed with household exposures to pesticides. The real association may depend on timing of exposure, type of pesticide, dose and pathway of exposure. Furthermore, some persons may be more susceptible to the effects of specific pesticides due to inherited mutations in their detoxification pathways. We are conducting a pilot study to test the hypothesis that environmental exposure to pesticides in pregnancy or during the neonatal period, together with genetic susceptibility may lead to childhood ALL or brain cancer. The study is a multicenter, case-control study, based on collaboration between clinical researchers and basic science research to evaluate the risk for childhood cancer in relation to measured levels of pesticides (and their metabolites) and genetic polymorphisms. Biomarkers will be used to examine the risks of chronic low-dose exposures, and to characterize relationships between specific pesticides, childhood cancer and genetic susceptibility. Hypothesis: Interaction between environmental factors (pesticides) and maternal or child genetic polymorphisms may lead to childhood cancer.

This observational study will assess the therapeutic efficiency, treatment schedules, handling procedures, and the safety profile of rituximab in routine care in participants with CLL.

RATIONALE: Studying samples of blood and bone marrow from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer. It may also help doctors predict how well patients will respond to treatment. PURPOSE: This research study is looking at DNA in blood and bone marrow samples from young patients with acute lymphoblastic leukemia.

RATIONALE: Gathering information about metabolic syndrome from young patients with acute lymphoblastic leukemia may help doctors learn more about the disease. PURPOSE: This phase I trial is studying the metabolic syndrome in young patients with acute lymphoblastic leukemia in remission.

This is a compassionate use protocol for patients with acute lymphoblastic leukemia (ALL) who have developed hypersensitivity or intolerance to E. coli L-asparaginase and/or PEG-L-asparaginase.

Purpose: The involvement of Natural Killer cells (NK) in the efficiency of the treatment in lymphoma and the beginning of new therapies based on function and activation of NK, justify an improvement of knowledge about the status of the population of NK (number, function, genic expression) in Chronic Lymphocytic Leukemia (CLL).

The primary objective of this study is to evaluate the effectiveness of idelalisib and rituximab in adults with chronic lymphocytic leukaemia (CLL) in a real world setting

This observational retrospective study will enroll at least 158 patients affected by Chronic Lymphoid Leukemia (CLL) with previous HBV exposure (HBsAg negative, anti-HBc positive with or without anti-HBs) treated with Ibrutinib single agent according to the IWCLL criteria 2008. Patients will be divided into two cohorts, one encompassing patients who received lamivudine and the second one including patients who received no prophylaxis. Each patient will be observed for one year from the first administration of Ibrutinib.

This observational study aims to study the effectiveness and safety of Obinutuzumab in common clinical practice settings in Argentina. The study population comprises all patients with chronic lymphocytic leukemia (CLL) that have received the indication for treatment with Obinutuzumab as per routine clinical practice.

Although the response rate by first-line treatment has been improved, most adult patients with relapsed or refractory ALL will eventually relapse with poor outcomes regardless of treatments. To further understand current status of the treatment of adult patients with relapsed or refractory ALL in China, the study retrospectively collected diagnosis and treatment data from ALL patients in 14 centers in China. Primary objective: to estimate the proportion of patients in overall response rate (ORR) for early relapsed or primary refractory Philadelphia chromosome negative (Ph-) B-precursor ALL patients following salvage treatment (i.e., proportion of patients in hematological complete remission [CR] and CR with partial recovery of blood cells [CRh*]); Secondary objectives included: to estimate the proportion of patients in CR, CRh* and CRi(CR/CRh*/CRi) and the duration of CR/CRh*/CRi, overall survival, duration of CR/CRh*and the proportion of patients receiving allogeneic hematopoietic stem cell transplantation (AlloHSCT) for early relapsed/primary refractory Ph-B-precursor ALL patients following salvage treatment; Exploratory objectives included: to estimate the efficacy in late relapsed Ph- B-precursor ALL (first remission duration > 12 months) patients and in Ph+ B-precursor ALL patients and specific subgroup patients following salvage treatment.